SAE HVAC Vehicle Operation Guide 

Version 3 

July 25, 2006 

Creative Thermal Systems 

2209 Willow Road 

Urbana IL 61802 

217-344-7663 

FAX 217-344-7552 

Email: info@creativethermalsolutions.com 

Send suggestions and corrections to: 

Norman Miller 

nr-millr@uiuc.edu
Topics 

1. Loading and running dSpace ControlDesk 

2. Starting STI data acquisition 

3. Rezeroing the EXV 

4. Permanently storing code in the system controller (dSpace MicroAutobox) 

5. Setting up instrumentation in dSpace ControlDesk 

6. Setting up a data capture in ControlDesk and using the captured data 

7. The control system model 

8. Model variables that may require modification 

9. Source code control (TortoiseSVN) 

10. Hardware issues 

Hardware Reference 
1. Loading and running dSpace ControlDesk 

The car must be running and the communication cable must be connected between the 

dSpace MicroAutobox and the support PC. 

Communication 

cable connected to 

adapter 

dSpace 

MicroAutobox 

Click on the ControlDesk icon 

to start 

Watch for a successful start (see Log Viewer at the bottom of the page) with 

communication established between the PC and the dSpace MicroAutobox. The Log 

should end with “Simulation state: RUN”. Try restating the program if startup fails. 

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Next click on File, then Open Experiment 

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Select SAE_HVAC.cdx in the directory where your code has been compiled as shown 

below. 

Unless you wish to

reload your program

(as after a 

recompile), click

No.

If you have recompiled and wish to reload, be certain the air conditioner is turned off and 

then click Yes. After a reload, be sure to rezero the EXV (see Topic 3). 

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The custom display screens are now visible, but data scanning is not started. The screens 

can be edited in this mode. Click on the icon indicated by the arrow to start updating the 

display screens. 

The updating EXV screen is shown below. 

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Click 

ViewÆFullscreen 

to view the screens 

full size.

A full size screen appears below. Press the “Esc” key to leave the full screen mode. 

 

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2. Starting STI data acquisition 

1. Connect the Panasonic support computer to the STI data acquisition system using 

its communication cable (see photo). 

2. Click on the STI icon labeled “STI_B12c” on the desktop. 

3. The STI must be powered on (box on rear tunnel of vehicle). 

4. Click on File->Start Test. 

5. Use the default Vehicle File and Config File. 

6. Change Data File as desired. Notice the directory where it is stored. Currently the 

directory is C:\sti\65DP4229 2005 STS\data. 

7. The screen should show all vehicle transducers. 

8. Enter an integer 1, 2, 3, etc. to start saving data. The number 1 saves data at one 

second intervals. 

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9. Press F7 to stop the test and exit. 

10. Open the data file you have just collected (suffix dat). 

11. Click “Convert” on screen to convert file to a *.csv file compatible with Excel. 

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3. Rezeroing the EXV

It is advisable to rezero the EXV after loading code into the MicroAutobox. After 

downloading code and starting simulation, be certain the AC system is switched off (see 

Topic 4). The Stepper box on the left of the ControlDesk EXV screen is used to establish 

valve zero. 

Stepper box 

1. Note the current controlled valve position. 

2. Click the button to place the valve in Manual Operating mode. 

3. Set the Manual valve position to a negative number. -2000 will always completely 

close the valve, but -1 may be sufficient. Try something like -50 and listen for the 

valve tapping when fully closed. (The tapping is obvious in the car with the doors 

closed.) You can always use a larger negative number if your first choice does not 

close the valve. 

4. After the valve has audibly closed and stopped tapping, click the button to disable 

the coils (this will prevent the motor from really turning). 

5. Set the Manual valve setting to 0 and wait for the red EXV Setpoint and green 

EXV Position curves to converge at zero. The controller’s counter and the 

physical valve position now match at 0. 

6. Click the button to return to normal coil sequencing. 

7. Set the Manual valve position to the position noted in step 1. 

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8. After the valve moves to that position (note the EXV Setpoint and Position plots), 

click the top button to return to Control mode. 

Note that this procedure should never be necessary if the system runs normally and the 

controller code is not reloaded. Note also that whenever the car’s engine is switched off 

(ignition off event), the system goes through an automatic valve rezero operation. The 

valve is driven to -500 steps, the counter reset to zero and then the valve is opened to the 

system default valve position. 

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4. Permanently storing code in the system controller (dSpace MicroAutobox) 

Start ControlDesk (see Topic 1). 

Click on the 

Platform tab 

Select Load 

Application to Flash 

(right click to show 

drop down menu) 

Select the sdf file 

you wish to load

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The AC system

should be 

switched off 

This button 

toggles the AC 

system

Click yes to load the 

control software into the 

MicroAutobox’s Flash 

memory and begin 

execution of the new code

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Note that control is lost during download of code. This is why the AC system should be 

turned off during code download. After the code has been downloaded and starts running 

on the MicroAutobox, rezero the EXV (see Topic 3) since its position is sometimes lost 

when new code is loaded. 

14 of 52
5. Setting up instrumentation in dSpace ControlDesk 

This section illustrates how to set up a plotter array. Other instruments are set up in a 

similar fashion. It is often convenient to copy and paste an existing instrument. 

Draw a box for 

the array on 

the display 

surface. 

Select Plotter 

Array 

Double click 

in the box and 

select Plotter 

from the menu 

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This tree follows 

the structure of the 

Simulink 

controller model 

and is used to 

locate model 

variables. 

Click the 

model tab at 

the bottom of

the page to 

display and 

select model 

variables. 

Click and drag 

the desired 

variable onto 

the left side of 

the plotter to

establish the

variable link 

16 of 52
6. Setting up a data capture in ControlDesk and using the captured data 

ControlDesk can capture and save buffers of data. Only data displayed on a plotter will 

be buffered and saved. To include data on a plotter, see Topic 5. The stored data duration 

and sample rate is established using the Capture Settings Window. 

Open Capture 

Settings Window

The Window may be hidden by the display windows, use the Window dropdown menu to 

locate. 

The base clock 

rate is 160/sec, so 

downsampling by 

80 yields 2 

samples/sec 

Length of the 

capture buffer 

in seconds 

To capture a buffer of data, Auto Repeat should not be checked. (To view normal strip 

chart displays, check Auto Repeat and set Downsampling to 40 or so.) For a basic scan, 

Select Hostservice:2 

for use with the 

vehicle MicroAutobox 

controller 

17 of 52
no trigger is selected. Press “Start” to begin the scan. Wait until the buffer is 100% full 

and press “Save” to write the buffer of data to a file. The file is a MatLab “.mat” file. The 

data is stored as a structure. (Use simple file names for compatibility with MatLab. In 

particular do not use a number at the beginning of a file name and do not use characters 

like ‘-‘ or blanks. Use ‘_’ instead of blanks.) CTS has developed a MatLab function 

“DSpaceExcel.m” that can convert either the entire data file or a portion of the file into 

an Excel spreadsheet. The function is located in the directory ~\ CTS\(latest directory 

data)\data and has been placed under TortoiseSVN version control (see Topic 9). The 

function runs only under MatLab ver. 7. (The Simulink control program must be 

compiled under MatLab ver. 6. Both versions of MatLab are available on the HP support 

computer.) The usage of this function follows (car_data is the *.mat file saved from a 

dSpace ControlDesk capture): 

Usage: 

load car_data 

DSpaceExcel(car_data, 'filename') 

This exports all the data cleaning up the exported names and printing messages as it 

works. 

Added features: 

DSpaceExcel(car_data, 'filename', [2 5 7]) 

Will only export the second, fifth, and seventh data sets. Use standard Matlab array 

notation to select which entries you need. For example, [1:5, 10:12] is the same as [1 2 3 

4 5 10 11 12]. 

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7. The control system model 

It may be necessary or desirable to modify and recompile the control system model. 

The current code is located 

in directory ~\CTS\(latest 

directory date) 

The control code has been placed under source code control (see Topic 9).

The control code consists of 

a Simulink model 

(SAE_HVAC.mdl) that uses 

two MatLab “m” files to

define constants and 

calibration factors 

(SAE_HVAC_Cals.m and 

SAE_HVAC_Consts.m) 

Double click on SAE_HVAC.mdl to start MatLab (version 6 – required to generate code 

for the MicroAutobox) and Simulink. Load SAE_HVAC_Cals and SAE_HVAC_Consts 

from MatLab. 

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Run the two MatLab “m” files 

by first selecting one of the two 

“m” files then clicking 

debugÆRun. After running the 

first file, select the second and 

run it as well. This procedure 

places all constants and 

calibration factors in the

MatLab workspace and makes 

them available to the Simulink 

model. 

Click this icon to build 

the model. This process 

takes several minutes. 

The code must be loaded into the MicroAutobox controller (see Topics 1 and 4). 

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During ControlDesk 

startup, click Yes to load 

the new code into the 

volatile memory of the 

MicroAutobox 

See Topic 4 to load code into the MicroAutobox’s FLASH memory. Note that code 

written only to volatile memory is persistent as long as vehicle battery power is not 

removed. (It is suggested that vehicle battery power be removed overnight by removing 

the supply fuse - see Topic 10.) 

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8. Model variables that may require modification 

The file SAE_HVAC_Cals.m contains systems calibration constants and setup 

parameters. You may wish to change some of the values. An effort has been made to 

place the variables that may need to be modified near the start of the file and to document 

every variable. Many of them can be modified during runs using dSpace ControlDesk. If 

a new set of constants are identified during a run using ControlDesk, you will need to 

modify the constants in SAE_HVAC_Cals.m and recompile and reload the code into the 

MicroAutobox to make the changes permanent (see Topic 7). 

9. Source code control (TortoiseSVN) 

The control code, the dSpace ControlDesk Experiment files, as well as some support files 

have been placed under source code control using TortoiseSVN. When using Windows 

Explorer, controlled files (and directories containing controlled files) will usually be 

indicated by a checkmark (if committed to the repository), or an exclamation point (if the 

latest version is not yet committed). The source code control system provides a way to 

return to previous version of the code. In particular, it is important to commit the entire 

development directory (Base_CTS_19_April at present) before making significant 

changes in the code. That way, mistakes can be rectified quickly by using the Revert 

feature of TortoiseSVN. The following shows how to start a new development directory 

and commit a copy of the code before beginning new development. Reversion to the last 

version of the code is also illustrated. See the TortoiseSVN help files for the many other 

features of this software. Note, the “repository” directory must never be deleted. 

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Make a new directory 

and right click in the 

blank directory to 

display the menu 

shown. Select SVN 

Checkout. 

Accept defaults 

and a set of the 

newest 

committed files 

will be placed in 

this directory 

In the case that you wish to revert to a previous version of controlled code: 

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This directory contains modified files 

and you wish to restore the files from 

the repository. 

Click to display this menu and 

select TortoiseSVN

24 of 52
Select Revert to restore to 

the last committed 

version.

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10. Hardware issues 

The entire system is powered from a line attached directly to the positive terminal of the 

vehicle battery. The system draws current sufficient to run down the vehicle battery even 

when completely shut down. It is suggested that the system fuse be removed when the 

vehicle is not running for any extended period of time. 

System

fuse 

Fan 

fuse

12 Volt battery current consumption when the vehicle ignition is off, the key fob far from

the vehicle, and with various loads is: 

1. System fuse installed, 9 pin vehicle bus connector in trunk connected and STI 

system turned on (toggle switch on rear tunnel)– 4.35A 

2. System fuse installed, 9 pin bus connector in trunk connected – 0.158 A 

3. System fuse installed, 9 pin bus connector in trunk disconnected – 0.135 A 

4. System fuse removed, 9 pin bus connector in trunk connected – 0.028 A 

5. System fuse removed, 9 pin bus connector in trunk disconnected – 0.044 A 

26 of 52
Fan controller 

Trunk 

ventilation fan

A small SPAL fan (VA31-A101-46S) and controller (FAN-PWM) have been installed to 

exhaust air from the trunk into the fender vent. Documents that cover the fan and its 

controller appear in the Hardware Reference at the end of this document. The fender 

vent flap has not been removed or taped open, so improved air flow could be obtained if 

necessary. Fan power is taken directly from the battery positive terminal (with return 

grounded on the same ground post on the passenger door upright as the control and data 

acquisition system). The fan controller is armed with an ignition line. The line is 

connected to the positive lead of the STI data acquisition system power cable. Thus the 

fan can only operate when the STI system is powered up. At present the fan starts 

running at a temperature of 116 F and reaches full velocity at 150 F. The fan can easily 

be reprogrammed to other temperature thresholds. For further information see the 

documents in the appendix of go to www.spalusa.com.

The custom Fujikoki stepper motor driver box is located in the trunk, accessible through 

the opening in the back seat. The driver is documented in the Hardware Reference that 

follows. 

27 of 52
Hardware Reference 

28 of 52
System Mechanizatio

29 of 52
MicroAutobox I/O Connector Pinouts 

The I/O connector is a 156-pin Zero Insertion Force (ZIF) connector giving access to the 

input and output signals provided by MicroAutoBox. 

The following illustration shows the pin numbering of the I/O connector (front view of 

MicroAutoBox): 

Note 

There are pins identified via capital letters (A, B, C, ...) and pins identified via small 

letters (a, b, c). 

The following table shows the signals of the I/0 connector: Pins used highlighted in 

yellow. Power (+12 Volt vehicle power) highlighted in red. Common (ground) 

highlighted in black. 

1 2 3 4 5 6 

DAC 7 out DAC 8 out Group 1 ch 1 out Group 1 ch 2 out Group 1 ch 3 out Group 1 ch 4 out A 

DAC 5 out DAC 6 out Group 1 ch 5 out Group 1 ch 6 out Group 1 ch 7 out CTM ch 1 out B 

DAC 3 out DAC 4 out CTM ch 2 out CTM ch 5 out CTM ch 6 out CTM ch 7 out C 

DAC 1 out DAC 2 out CTM ch 8 out CTM ch 3 out CTM ch 4 out Group 6 ch 1 out D 

VDRIVE in VSENS out Group 6 ch 2 out Group 6 ch 3 out Group 6 ch 4 out Group 6 ch 5 out E

Group 6 ch 6 out Group 6 ch 7 out GND in GND in Group 6 ch 8 out TPU ch 1 out F 

TPU ch 2 out TPU ch 3 out GND in GND in GND in TPU ch 4 out G 

TPU ch 5 out TPU ch 6 out GND in GND in TPU ch 7 out TPU ch 8 out H 

TPU ch 9 out TPU ch 10 out TPU ch 11 out TPU ch 12 out TPU ch 13 out TPU ch 14 out J 

TPU ch 15 out TPU ch 16 out Group 2 ch 1 out Group 2 ch 2 out Group 2 ch 3 out Group 2 ch 4 out K 

Group 2 ch 5 out Group 2 ch 6 out Group 2 ch 7 out Group 2 ch 8 out Group 3 ch 1 out Group 3 ch 2 out L

Group 3 ch 3 out CTM ch 1 in REMOTE in CTM ch 2 in CTM ch 3 in CTM ch 4 in M

Group 6 ch 1 in Group 6 ch 2 in Group 6 ch 3 in Group 6 ch 4 in Group 6 ch 5 in Group 6 ch 6 in N 

Group 6 ch 7 in Group 6 ch 8 in TPU ch 1 in TPU ch 2 in TPU ch 3 in TPU ch 4 in P 

30 of 52
TPU ch 5 in TPU ch 6 in TPU ch 7 in TPU ch 8 in TPU ch 9 in TPU ch 10 in R 

TPU ch 11 in TPU ch 12 in TPU ch 13 in TPU ch 14 in TPU ch 15 in TPU ch 16 in S 

Group 2 ch 1 in Group 2 ch 2 in Group 2 ch 3 in Group 2 ch 4 in Group 2 ch 5 in Group 2 ch 6 in T 

Group 2 ch 7 in ADC Type 1 

Con 4 Ch 4 

in Serial 2 K / 

LIN 

i/o Serial 2 L in Serial 1 

TXD 

out Serial 1 

RXD 

in U 

ADC Type 1 

Con 2 Ch 4 

in ADC Type 1 

Con 3 Ch 4 

in VBAT in VBAT in CAN 1 low i/o CAN 1 high i/o V 

ADC Type 1 

Con 1 Ch 4 

in ADC Type 1 

Con 4 Ch 3 

in VBAT in VBAT in VBAT in Group 2 ch 8 in W

ADC Type 1 

Con 2 Ch 3 

in ADC Type 1 

Con 3 Ch 3 

in VBAT in VBAT in CAN 2 low i/o CAN 2 high i/o X 

ADC Type 1 

Con 1 Ch 3 

in ADC Type 1 

Con 4 Ch 2 

in Group 4 ch 1 in Group 4 ch 2 in ECU / IF 

RX+ 

in Group 4 ch 3 in Y 

ADC Type 1 

Con 2 Ch 2 

in ADC Type 1 

Con 3 Ch 2 

in Group 4 ch 4 in Group 4 ch 5 in ECU / IF 

RXin Group 4 ch 6 in Z 

ADC Type 1 

Con 1 Ch 2 

in ADC Type 1 

Con 4 Ch 1 

in Group 4 ch 7 in Group 4 ch 8 in ECU / IF 

TXout Group 5 ch 1 in a 

ADC Type 1 

Con 2 Ch 1 

in ADC Type 1 

Con 3 Ch 1 

in Group 5 ch 2 in Group 5 ch 3 in ECU / IF 

TX+ 

out Group 5 ch 4 in b 

ADC Type 1 

Con 1 Ch 1 

in VBAT prot out Group 5 ch 5 in Group 5 ch 6 in Group 5 ch 7 in Group 5 ch 8 in c 

1 2 3 4 5 6 

31 of 52
MicroAutobox I/O Connector Signals by Pin 

 Name 

Pin (MicroAutobox) Signal Name Wire color 

A1 DAC7 Compressor command to STI 

A2 DAC8 EAT setpoint to STI 

A3 Group1 ch1 Fujikoki valve driver-phase 4 

A6 Group1 ch4 Fujikoki valve driver-phase 2 

B1 DAC5 Suction pressure to STI 

B2 DAC6 Compressor torque to STI 

B3 Group1 ch5 Fujikoki valve driver-phase 1 

B4 Group1 ch6 Fujikoki valve driver-phase 3 

C1 DAC3 Superheat to STI 

C2 DAC4 Evap capacity to STI 

D1 DAC1 COP to STI 

D2 DAC2 

Compressor current FB to 

STI 

E1 VDRIVE 

E2 VSENS 

F3 GND Common 

F4 GND Common 

F6 TPU ch1 

PWM (compressor 

command) brown 

G3 GND Common 

G4 GND Common 

H3 GND Common 

H4 GND Common 

M3 REMOTE 

To vehicle ignition (system 

on) 

T1 Group2 ch1 compressor request green/blk 

V1 

ADC Type1 Con2 

Ch4 Compressor current FB light purple 

V5 CAN1 low Low speed CAN low 

V6 CAN1 high Low speed CAN high 

W1 

ADC Type1 Con1 

Ch4 Suction Temperature orange/white 

X1 

ADC Type1 Con2 

Ch3 

Compressor outlet 

temperature 

X3 VBAT +12 vehicle power 

X4 VBAT +12 vehicle power 

X5 CAN2 low High speed CAN low 

X6 CAN2 high High speed CAN high 

Y1 

ADC Type1 Con1 

Ch3 Discharge temperature orange 

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Z1 

ADC Type1 Con2 

Ch2 Cabin Temperature green 

a1 

ADC Type1 Con1 

Ch2 Suction pressure yellow 

b1 

ADC Type1 Con2 

Ch1 Cabin humidity 

c1 

ADC Type1 Con1 

Ch1 Supply ref. feedback orange 

MicroAutobox I/O Connector Signals by MicroAutobox signal name 

Name 

(MicroAutobox) Pin Signal Name Wire color 

ADC Type1 Con1 

Ch1 c1 Supply ref. feedback orange 

ADC Type1 Con1 

Ch2 a1 Suction pressure yellow 

ADC Type1 Con1 

Ch3 Y1 Discharge temperature orange 

ADC Type1 Con1 

Ch4 W1 Suction Temperature orange/white

ADC Type1 Con2 

Ch1 b1 Cabin humidity 

ADC Type1 Con2 

Ch2 Z1 Cabin Temperature green 

ADC Type1 Con2 

Ch3 X1 

Compressor outlet 

temperature 

ADC Type1 Con2 

Ch4 V1 Compressor current FB light purple 

CAN1 high V6 Low speed CAN high 

CAN1 low V5 Low speed CAN low 

CAN2 high X6 High speed CAN high 

CAN2 low X5 High speed CAN low 

DAC1 D1 COP to STI 

DAC2 D2 

Compressor current FB to 

STI 

DAC3 C1 Superheat to STI 

DAC4 C2 Evap capacity to STI 

DAC5 B1 Suction pressure to STI 

DAC6 B2 Compressor torque to STI 

DAC7 A1 Compressor command to STI 

DAC8 A2 EAT setpoint to STI 

GND F3 Common 

GND F4 Common 

GND G3 Common 

GND G4 Common 

GND H3 Common 

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GND H4 Common 

Group1 ch1 A3 Fujikoki valve driver-phase 4 

Group1 ch4 A6 Fujikoki valve driver-phase 2 

Group1 ch5 B3 Fujikoki valve driver-phase 1 

Group1 ch6 B4 Fujikoki valve driver-phase 3 

Group2 ch1 T1 compressor request green/blk 

REMOTE M3 

To vehicle ignition (system 

on) 

TPU ch1 F6 

PWM (compressor 

command) brown 

VBAT X3 +12 vehicle power 

VBAT X4 +12 vehicle power 

VDRIVE E1 

VSENS E2 

 

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5

5

44

33

22

D C B A 

+5_logicLogic_common

+12_ve

p1_cntl 

Motor_cMotor_c

p2_cntlp3_cntlp4_cntl

TitleSize Document Number Date: 

CTS_010 Fujikoki Valve Driver

A

Tuesday, July 25, 2006 

TitleSize Document Number Date: 

CTS_010 Fujikoki Valve Driver

A

Tuesday, July 25, 2006 

TitleSize Document Number Date: 

CTS_010 Fujikoki Valve Driver

A

Tuesday, July 25, 2006 

Connections to MicroAutoboxfrom Connector J1(positions numbered 1-10)1) To pin E2 - VSEN (+5V)2) To pin F3 - Ground3) To pin B3 - GP1CH5 (purple)4) To pin A6 - GP1CH4 (green)5) To pin B4 - GP1CH6 (pink)6) To pin A3 - GP1CH1 (white/red)7-10) not used

CTS - Urbana, Illinois

C2

100 microF16V

D1D1N4740a

A3Highside_driver

+5_logicSignal_inLogic_common

+12_vehicle

Coil_power_out

A2Highside_driver

+5_logicSignal_inLogic_common

+12_vehicle

Coil_power_out

A4Highside_driver

+5_logicSignal_inLogic_common

+12_vehicle

Coil_power_out

A1Highside_driver

+5_logicSignal_inLogic_common

+12_vehicle

Coil_power_out

C30.1 microF

J1

10 Posn screw terminal

12345678910

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5

5

44

33

22

D C B A 

+5_logic

Signal_in

Logic_common

TitleSize Document Number Date: 

CTS_011 Fujikoki Valve Driver - Highs

A

Tuesday, July 25, 2006 

TitleSize Document Number Date: 

CTS_011 Fujikoki Valve Driver - Highs

A

Tuesday, July 25, 2006 

TitleSize Document Number Date: 

CTS_011 Fujikoki Valve Driver - Highs

A

Tuesday, July 25, 2006 

High side coil driver circuit based on International RectifierIR3312 part.

CTS - Urbana, Illinois

R15.11k

U1IR3312

InIfb

Vcc

Out

R22k

Q1ZVN4206A

36 of 52
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5

5

44

33

22

D C B A 

To pin V1 MicroAutobo

From pin F6 MicroAutoboxFrom pin H4 MicroAutobox

+5V Driver Box

TitleSize Document Number Date: 

CTS_030 Compressor Driver and Curr

CTS - Urbana, Illinois

A

Tuesday, July 25, 2006 

TitleSize Document Number Date: 

CTS_030 Compressor Driver and Curr

CTS - Urbana, Illinois

A

Tuesday, July 25, 2006 

TitleSize Document Number Date: 

CTS_030 Compressor Driver and Curr

CTS - Urbana, Illinois

A

Tuesday, July 25, 2006 

green

pinkblue

0.10 Ohm currensense resistor

redblue

Omega OM5-IMV-100A-C voltage isolation module ion OM5-BP-SKT-C board. Module converts 0 to 100 voltage across the sense resistor (created by 0 current) to 0 to 5 volts signal for input to MiModule include 4 Hz filter to smooth the pulse modulated current signal.

OM5-BP-SKT-C

+IN-IN

+5V PCOM Vout I/O COM

D2DIODE

D1DIODE

R2510 Ohm

IPS 021

IN

D

S

R1

CADDOCK SR10-0.1

R310k Ohm

38 of 52
Installation of current sense measurement circuit (isolation amplifier) 

Install OM5-IMV-100A-C module on the OM5-BP-SKT-C board and connect as shown 

below. An explanation of certain connections follows the diagram.

Jumper RD EN/ to 

I/O common to 

enable output 

signal.

+5 V power 

and common – 

from 7805, 5 

volt regulator 

in Driver Box 

Signal – goes 

ultimately to pin 

V1 on 

MicroAutobox 

Signal common – 

to MicroAutobox 

common – any of 

pins F3,F4, G3, 

G4, H3, H4. 

Jumper J1 

connects power 

and signal (I/O) 

commons. See 

text. 

Jumper J2 must 

not be installed. 

Voltage drop across 

current sense 

resistor. 

See the “Compressor Driver and Current Sense” schematic diagram for connection across 

the current sense resistor. The current sense resistor is located in an external plastic 

enclosure. 

Jumper J1 should not be installed for this application. 

The conditioned current sense resistor voltage signal should go to pin V1 on the 

MicroAutobox connector. Remove the big connector of the front of the MicroAutobox, 

you can see how the pins are arranged (see the following diagram). 

39 of 52
You should be able to remove the MicroAutobox connector and figure out the pinout 

from the diagram above (note looking into the connector will be a mirror image of the 

above – the pins are arranged as shown when looking at the back of the connector after 

removing its shell. The power and ground pins are shown in red and black respectively. 

The green pin is the one we are adding. You will have to remove the connector shell. 

Crimp a pin to a new wire and attach to terminal Vout of the OM5-BP-SKT-C board. 

You can go to the dSpace help files and see the instructions on how to take off the 

connector shell and crimp and install a new pin. (Search for the topic “How to Build the 

Connector”.) 

The OM5-IMV-100A-C module converts the 0 – 100 mV signal across the current sense 

resistor (100mV corresponds to 1 A) to a 0 to 5 volt signal. The MicroAutobox converts 

the 0 to 5 volt signal to a number between 0 and 1. Thus the signal measured by the 

MicroAutobox reads directly in Amps.

40 of 52
Installation of K thermocouple for measurement of compressor outlet temperature. 

Install OM5-LTC-K2-C module on the OM5-BP-SKT-C board and connect as shown 

below. An explanation of certain connections follows the diagram.

Jumper RD EN/ to 

I/O common to 

enable output 

signal.

+5 V power – 

connect in 

parallel with 

current sense 

circuit. 

K thermocouple. 

Red is negative lead. 

Signal – goes to 

pin X1 on 

MicroAutobox 

connector

Signal common – 

connect to same

terminal on current

sense circuit 

Jumper J1 

connects power 

and signal (I/O) 

commons. See 

text. 

Jumper J2 must be 

installed for cold 

junction 

compensation. 

The “Compressor Outlet Pipe Temp” thermocouple was wire 38 plugged into physical 

channel number 26 of the STI data acquisition system. 

The installation of jumper J1 depends on the ground status of the thermocouple. Use a 

DVM to check continuity between one of the thermocouple leads and chassis ground 

(available in the plastic power distribution box in the floor of the trunk near the bumper). 

If there is low resistance to chassis ground, do not install jumper J1. If the resistance is 

larger than, say, 20,000 Ohms, do install the jumper. 

41 of 52
 The conditioned thermocouple signal should go to pin X1 on the MicroAutobox 

connector. Remove the big connector of the front of the MicroAutobox, you can see how 

the pins are arranged (see the following diagram). 

You should be able to remove the MicroAutobox connector and figure out the pinout 

from the diagram above (note looking into the connector will be a mirror image of the 

above – the pins are arranged as shown when looking at the back of the connector after 

removing its shell. The power and ground pins are shown in red and black respectively. 

The green pin is the one we are adding. You will have to remove the connector 

shell.Crimp a pin to a new wire and attach to terminal Vout of the OM5-BP-SKT-C 

board. 

You can go to the dSpace help files and see the instructions on how to take off the 

connector shell and crimp and install a new pin. (Search for the topic “How to Build the 

Connector”.) 

The OM5-LTC-K2-C module converts the thermocouple signal to a voltage such that 0 to 

500C maps into 0 to 5 volts. The MicroAutobox converts the 0 to 5 volt signal to a 

number between 0 and 1. This can be checked in the dSpace software. The signal is read 

by the dSpace system in the software module HWIO, DS1401 Analog Inputs – Mod 

Spd1. Right click on the ADC_TYPE1_M1_CON2 block and select help. The help topic 

will tell you the input voltage to internal units mapping. Assuming the 5 volts maps to 1, 

the conversion relationship between conversion and temperature is just: 

( ) 500 C

o T = conversion •

42 of 52
22

OM5-WMV/WV

Analog Voltage Input Modules, Wide Bandwidth

FEATURES

● ACCEPTS MILLIVOLT AND VOLTAGE LEVEL SIGNALS

● HIGH LEVEL VOLTAGE OUTPUTS

● 1500Vrms TRANSFORMER ISOLATION

● ANSI/IEEE C37.90.1-1989 TRANSIENT PROTECTION

● INPUT PROTECTED TO 240VAC CONTINUOUS

● 100dB CMR

● 10kHz SIGNAL BANDWIDTH

● ±0.05% ACCURACY

● ±0.02% LINEARITY

● ±1μV/°C DRIFT

● CSA CERTIFIED, FM APPROVED, CE COMPLIANT

● MIX AND MATCH OM5 TYPES ON BACKPANEL

FIGURE 1. OM5-WMV/WV Block Diagram.

DESCRIPTION

Each OM5 wide bandwidth voltage input module provides a single channel

of analog input which is amplified, isolated, and converted to a high level

analog voltage output (Figure 1). This voltage output is logic-switch

controlled, allowing these modules to share a common analog bus without

the requirement of external multiplexers.

The OM5 modules are designed with a completely isolated computer side

circuit which can be floated to ±50V from Power Common, pin 16. This

complete isolation means that no connection is required between I/O

Common and Power Common for proper operation of the output switch. If

desired, the output switch can be turned on continuously by simply

connecting pin 22, the Read-Enable pin to I/O Common, pin 19.

The input signal is processed through a pre-amplifier on the field side of

the isolation barrier. This pre-amplifier has a gain-bandwidth product of

5MHz and is bandwidth limited to 10kHz. After amplification, the input

signal is chopped by a proprietary chopper circuit. Isolation is provided by

transformer coupling, again using a proprietary technique to suppress

transmission of common mode spikes or surges. The module is powered

from +5VDC, ±5%.

A special input circuit provides protection against accidental connection of

power-line voltages up to 240VAC.

Anti-Aliasing

Filter

+In

–In

–EXC

Backpanel

Term Block

1

2

6

5

3

NC

Surge 

Suppression

and 

Protection

Isolated

Field-Side

Power

4

3

2

1

+EXC

–V

+V

VIN

4

NC

–V

LPF

+V

Power

Oscillator

Isolated 

Computer-Side

Power

VOUT

20

22

I/O Common

RD EN\

+5V

17

16

Power Common

19

IsochopperTM

Amplifier

Pat Pending

43 of 52
23

Module OM5-WMV OM5-WV

Input Range ±10mV to ±100mV ±1V to ±40V

Input Bias Current ±0.5nA ±0.05nA

Input Resistance

Normal 200MΩ 650kΩ (minimum)

Power Off 40kΩ 650kΩ (minimum)

Overload 40kΩ 650kΩ (minimum)

Input Protection

Continuous 240Vrms Max *

Transient ANSI/IEEE C37.90.1-1989 *

CMV, Input to Output

Continuous 1500Vrms max *

Transient ANSI/IEEE C37.90.1-1989 *

CMR (50Hz or 60Hz) 100dB *

NMR (–3dB at 10kHz) 120dB per Decade above 10kHz *

Accuracy(1) ±0.05% Span ±10μV RTI(2) ±0.05%(VZ

(3)) ±0.05% span ±0.2mV RTI(2)

±0.05% (VZ

(3))

Nonlinearity ±0.02% Span *

Stability

Input Offset ±1μV/°C ±20μV/°C

Output Offset ±40μV/°C *

Gain ±25ppm/°C ±50ppm/°C

Noise

Input, 0.1 to 10Hz 0.4μVrms 2μVrms

Output, 100kHz 10mVp-p *

Bandwidth, –3dB 10kHz *

Rise Time, 10 to 90% Span 35μs *

Settling Time, to 0.1% 250μs *

Output Range ±5V or 0V to +5V *

Output Resistance 50Ω *

Output Protection Continuous Short to Ground *

Output Selection Time 6μs at Cload = 0 to 2000pF

(to ±1mV of VOUT )*

Output Current Limit ±8mA *

Output Enable Control

Max Logic “0” +0.8V *

Min Logic “1” +2.4V *

Max Logic “1” +36V *

Input Current, “0”, “1” 0.5μA *

Power Supply Voltage +5VDC ±5% *

Power Supply Current 30mA *

Power Supply Sensitivity ±2μV/% RTI(2) ±200μV/% RTI(2)

Mechanical Dimensions 2.28" x 2.26" x 0.60" (58mm x 57mm x 15mm) *

Environmental

Operating Temp. Range –40°C to +85°C *

Storage Temp. Range –40°C to +85°C *

Relative Humidity 0 to 95% Noncondensing *

Emissions EN50081-1, ISM Group 1, *

Class A (Radiated, Conducted)

Immunity EN50082-1, ISM Group 1, Class A (ESD, RF, EFT) *

ORDERING

INFORMATION

SPECIFICATIONS Typical at TA = +25°C and +5V Power.

* Same specification as OM5-

WMV.

NOTES: (1) Includes nonlinearity,

hysteresis and repeatability.

(2) RTI = Referenced to input.

(3) VZ is the input voltage

that results in 0V output.

MODEL INPUT RANGE OUTPUT RANGE

OM5-WMV-10A-C –10mV to +10mV –5V to +5V

OM5-WMV-50A-C –50mV to +50mV –5V to +5V

OM5-WMV-100A-C –100mV to +100mV –5V to +5V

OM5-WMV-10B-C –10mV to +10mV 0V to +5V

OM5-WMV-50B-C –50mV to +50mV 0V to +5V

OM5-WMV-100B-C –100mV to +100mV 0V to +5V

OM5-WV-1A-C –1V to +1V –5V to +5V

OM5-WV-5A-C –5V to +5V –5V to +5V

OM5-WV-10A-C –10V to +10V –5V to +5V

OM5-WV-1B-C –1V to +1V 0V to +5V

OM5-WV-5B-C –5V to +5V 0V to +5V

OM5-WV-10B-C –10V to +10V 0V to +5V

OM5-WV-20A-C –20V to +20V –5V to +5V

OM5-WV-20B-C –20V to +20V 0V to +5V

OM5-WV-40A-C –40V to +40V –5V to +5V

OM5-WV-40B-C –40V to +40V 0V to +5V

44 of 52
30

OM5-LTC

Linearized Thermocouple Input Modules

FEATURES

● INTERFACES TO TYPES J, K, T, E, R, S, N, AND B

 THERMOCOUPLES

● LINEARIZES THERMOCOUPLE SIGNAL

● HIGH LEVEL VOLTAGE OUTPUTS

● 1500Vrms TRANSFORMER ISOLATION

● ANSI/IEEE C37.90.1-1989 TRANSIENT PROTECTION

● INPUT PROTECTED TO 240VAC CONTINUOUS

● 160dB CMR

● 95dB NMR AT 60Hz, 90dB at 50Hz

● ±1μV/°C DRIFT

● CSA CERTIFIED, FM APPROVED, CE COMPLIANT

● MIX AND MATCH OM5 TYPES ON BACKPANEL

DESCRIPTION

Each OM5-LTC thermocouple input module provides a single channel of

thermocouple input which is filtered, isolated, amplified, linearized and

converted to a high level analog voltage output (Figure 1). This voltage

output is logic-switch controlled, allowing these modules to share a

common analog bus without the requirement of external multiplexers.

The OM5-LTC modules are designed with a completely isolated computer

side circuit which can be floated to ±50V from Power Common, pin 16.

This complete isolation means that no connection is required between I/O

Common and Power Common for proper operation of the output switch. If

desired, the output switch can be turned on continuously by simply

connecting pin 22, the Read-Enable pin to I/O Common, pin 19.

The OM5-LTC can interface to eight industry standard thermocouple types:

J, K, T, E, R, S, N, and B. Its corresponding output signal operates over a

0V to +5V range. Each module is cold-junction compensated to correct for

parasitic thermocouples formed by the thermocouple wire and screw

terminals on the mounting backpanel. Upscale open thermocouple detect

is provided by an internal pull-up resistor. Downscale indication can be

implemented by installing an external 47MΩ resistor, ±20% tolerance,

between screw terminals 1 and 3 on the OM5-BP backpanels.

Signal filtering is accomplished with a six-pole filter which provides 95dB

of normal-mode-rejection at 60Hz and 90dB at 50Hz. Two poles of this filter

are on the field side of the isolation barrier, and the other four are on the

computer side.

After the initial field-side filtering, the input signal is chopped by a

proprietary chopper circuit. Isolation is provided by transformer coupling,

again using a proprietary technique to suppress transmission of common

mode spikes or surges. The module is powered from +5VDC, ±5%.

A special input circuit provides protection against accidental connection of

power-line voltages up to 240VAC.

FIGURE 1. OM5-LTC Block Diagram.

–V

LPF

LPF

+In

–In

–EXC

Backpanel

Term Block

1

2

6

5

3

Surge 

Suppression

and 

Protection +V

Isolated

Field-Side

Power

Isolated 

Computer-Side

Power

VOUT

20

19

22

I/O Common

RD EN\

4

3

2

1

+EXC

–V

+V

4

Thermocouple

Precision

Reference

CJC

Temp

Sensor

+2.5V

Linearizer

100MΩ

Power

Oscillator

+5V

17

16

Power Common

IsochopperTM

Amplifier

Pat Pending

NC

45 of 52
31

SPECIFICATIONS Typical at TA = +25°C and +5V power.

Module OM5-LTC

Input Range –0.1V to +0.5V

Input Bias Current –25nA

Input Resistance

Normal 50MΩ

Power Off 40kΩ

Overload 40kΩ

Input Protection

Continuous 240Vrms max

Transient ANSI/IEEE C37.90.1-1989

CMV, Input to Output

Continuous 1500Vrms max

Transient ANSI/IEEE C37.90.1-1989

CMR (50Hz or 60Hz) 160dB

NMR 95dB at 60Hz, 90dB at 50Hz

Accuracy See Ordering Information

Stability

Input Offset ±1μV/°C(1)

Output Offset ±20μV/°C

Gain ±25ppm/°C

Noise

Input, 0.1 to 10Hz 0.2μVrms

Output, 100kHz 300μVp-p, 150μVrms

Bandwidth, –3dB 4Hz

Response Time, 90% Span 0.2s

Output Range 0V to +5V

Output Resistance 50Ω

Output Protection Continuous Short to Ground

Output Selection Time 6μs at Cload = 0 to 2000pF

(to ±1mV of VOUT )

Output Current Limit +8mA

Output Enable Control

Max Logic “0” +0.8V

Min Logic “1” +2.4V

Max Logic “1” +36V

Input Current, “0”, “1” 0.5μA

Open Input Response Upscale

Open Input Detection Time 10s

Cold Junction Compensation

Accuracy, 25°C ±0.25°C

Accuracy, +5°C to +45°C ±0.5°C

 Accuracy, –40°C to +85°C ±1.25°C

Power Supply Voltage +5VDC ±5%

Power Supply Current 30mA

Power Supply Sensitivity ±2μV/% RTI(2)

Mechanical Dimensions 2.28" x 2.26" x 0.6"

(58mm x 57mm x 15mm)

Environmental

Operating Temp. Range –40°C to +85°C

Storage Temp. Range –40°C to +85°C

Relative Humidity 0 to 95% Noncondensing

Emissions EN50081-1, ISM Group 1, Class A (Radiated, Conducted)

Immunity EN50082-1, ISM Group 1, Class A (ESD, RF, EFT)

ORDERING

INFORMATION

NOTES: (1) This is equivalent to °C as follows:

Type J 0.020 °C/°C, Types K, T 0.025°C/°C,

Type E 0.016°C/°C, Types R, S 0.168°C/°C,

Type N 0.037°C/°C, Type C 0.072°C/°C.

(2) Referenced to input.

MODEL TYPE INPUT RANGE OUTPUT RANGE ACCURACY†

OM5-LTC-J1-C Type J 0°C to +760°C (+32°F to +1400°F) 0V to +5V ±0.08% ±0.61°C

OM5-LTC-J2-C Type J -100°C to +300°C (-148°F to +572°F) 0V to +5V ±0.08% ±0.32°C

OM5-LTC-J3-C Type J 0°C to +500°C (+32°F to 932°F) 0V to +5V ±0.07% ±0.36°C

OM5-LTC-J4-C Type J -100°C to +760°C (-148°F to +1400°F) 0V to +5V ±0.08% ±0.70°C

OM5-LTC-K1-C Type K 0°C to +1000°C (+32°F to +1832°F) 0V to +5V ±0.08% ±0.80°C

OM5-LTC-K2-C Type K 0°C to +500°C (+32°F to +932°F) 0V to +5V ±0.08% ±0.38°C

OM5-LTC-K3-C Type K -100°C to +1350°C (-148°F to +2462°F) 0V to +5V ±0.08% ±1.2°C

OM5-LTC-T1-C Type T -100°C to +400°C (-148°F to +752°F) 0V to +5V ±0.16% ±0.80°C

OM5-LTC-T2-C Type T 0°C to +200°C (+32°F to +392°F) 0V to +5V ±0.13% ±0.25°C

OM5-LTC-E-C Type E 0°C to +1000°C (+32°F to +1832°F) 0V to +5V ±0.10% ±1.0°C

OM5-LTC-R-C Type R +500°C to +1750°C (+932°F to +3182°F) 0V to +5V ±0.10% ±1.3°C

OM5-LTC-S-C Type S +500°C to +1750°C (+932°F to +3182°F) 0V to +5V ±0.10% ±1.3°C

OM5-LTC-B-C Type B +500°C to +1800°C (+932°F to +3272°F) 0V to +5V ±0.15% ±2.0°C

†

Includes conformity,

hysteresis and

repeatability. Does not

include CJC accuracy.

46 of 52
48

OM5-BP-SKT-C ANALOG MODULE EVALUATION BOARD

FIGURE 19. OM5-BP-SKT-C Evaluation Board Dimensions And Pin Layout.

FIGURE 20. OM5-BP-SKT-C Evaluation Board Schematic.

DESCRIPTION

The OM5-BP-SKT-C is a single channel board with a test socket for OM5

module evaluation (Figure 19). All signal input/output, control, and power

connections are connected to terminal blocks for ease of user access. A cold

junction temperature sensor circuit is included for evaluation of thermocouple modules. (See Figure 20 for schematic).

The OM5-BP-SKT-C is mechanically compatible with DIN rail mounting

using the following elements:

2 OM7-DIN-SF base elements with snap foot

2 OM7-DIN-SE side elements

4 OM7-DIN-CP connection pins

Two jumpers are provided for customer use. The first, J1, provides a current

path between +5V Power Common (module pin 16) and I/O Common

(module pin 19). A path must exist between the host control logic power

common and module I/O Common for proper operation of the module output

switch or track-and-hold circuit. If this connection exists elsewhere in the

system, jumper J1 should be removed since possible ground loops could

exist. Other connections of power ground and signal ground usually occur

at the A/D or D/A converter of the host measurement system.

Jumper J2 is used in the cold junction compensation circuit. If it is installed,

the compensation circuit is enabled and will provide the proper compensation voltage to correct for the thermoelectric effect at the +In and –In screw

terminals. If an external simulation voltage is desired for cold junction

compensation, J2 should be removed. The external voltage is applied at the

sockets labled CJC+ and CJC–. An external voltage of 510.0 mV corresponds

to an ambient temperature of +25 °C. The transfer function of the onboard

compensation circuit is VCJC = 0.510 –0.0025(T–25)V.

Control Local I/O

0.25" (6.4mm) Typical

2.85"

(72.4mm)

0.25"

(6.4mm)

Typical

RD EN\

WR EN\

Reserved

PCOM

VOUT

I/O COM

VIN

I/O COM

TB3

+5V

PCOM

J1

J2

–

+

CJC

–EXC

–In

+EXC

+In

4.25"

(108mm)

TB4

TB1 TB2

OMX-1362-C

OMX-CJC-C

22

20

18

16

6 +In

4 +EXC

2 +SEN

–In 5

–EXC 3

–SEN 1

23

21

19

17

PCOM

I/O COM

–EXC –In +In +EXC

VOUT

I/O COM

VIN

I/O COM

RD EN\

WR EN\

Reserved

PCOM

TB1

PCOM

TB3

+5

PCOM

PCOM

TB4

I/O COM

PCOM

J1

CJC

+

–

TB2

NOTES: 

1. J1 and J2 are factory installed.

2. SCMXCJC is a CJC temperature sensor.

3. Resistor SCMXR1 is an optional I/V conversion 

resistor for current inputs, not factory installed.

DZ1

LED

OMX-1362-C

OM5

J2

OMX-CJC-C

47 of 52
FAN-PWM

INSTALLATION INSTRUCTIONS

SPAL USA • 512 Tuttle Street, Des Moines, IA 50309-4618

info@spalusa.com • www.spalusa.com

w.spalusa.com Main/Sales: 800-345-0327 • Technical: 800-454-7725

AL USA 

RRANTY STATEMENT

om defects in material and workmanship for a period 

e to the original purchaser. SPAL USA will repair this

SPAL USA, it has been proven defective within the 

rned, at the customer expense, to the location of 

over any expenses incurred in the removal and/or 

damaged by improper installation, misuse, abuse,

 other acts of God, or a product altered or repaired 

xpressed or implied, including any implied warranty 

o assume for SPAL USA any other liability concerning the

CE WITH THIS WARRANTY STATEMENT!

48 of 52
M) will Pulse Width Modulate a single SPAL electric

d based on engine temperature. A second fan can

n wiring kit (SPAL part number FRH). The second 

ON/OFF only. 

LED will light and the fan will run at 100% for 1/2 

itial kick-start, the fan will run at 50%, or 1/2 speed.

LED will light and the fan will run at 100%, or full

that the fan can lower its speed. When the red 

sent on the grey wire. This is used to trigger a 

proof and can be mounted inside the vehicle or the

heat sources such as engine exhaust. A wheel well,

od mounting locations.

ions on pages 5-8.

y Harness (SPAL part number FRH) to power the 

ns on pages 9-12.

r

ected to the factory (OEM) temperature sensor or an 

his eliminates the need for an additional sensor. (The 

M factory type sensor on fuel-injected vehicles. Some 

or, the SPAL Fan Controller must be programmed.

on on pages 3 and 4.

WM-TS)

n OEM temperature sensor, you can purchase a SPAL 

y into the Fan Controller. 

gine head or intake manifold for optimal performance. 

sensor, the Fan Controller is preset from the factory 

High setting of 200°.

ease see the programming section on pages 3 and 4.

2

Unused Wires

Depending on your specific system, you may have extra wires that are not being used.These wires can be coiled and contained in a non-conspicuous location. Or for a cleaner installation the unused wires may be cut. However, if cutting the wires, be sure to cover the ends of the wires with electrical tape or equivalent.If you are using Air Conditioning you can connect the Blue wire to the 12V wire of the air conditioning compressor. When the compressor turns on, the fan(s) will run at 100%. andthe green LED will light.

Introduction / Overview

Suggested Fuse Values

The fusing of the FAN-PWM is dependent upon the size and style of fan used. Please reference the suggested fuse values table on Page 13.

49 of 52
4

ing has been reached.

etting has been reached.

ses until high temperature setting is reached.

 has been powered ON.

g programming.**

d “low” temperature.

d, press and hold the “Low” button for 3

re.”

etting is reached, press and hold the “High”

 ignition.

urns on at the correct temperatures.

H RED GREEN YELLOW

Example

If you want your fan to spin at half-speed at 160 degrees, and spin at full-speed at 200degrees, you would:

•Unplug fan.•Warm-up vehicle to 160 degrees.•Press and hold Low Button for 3 seconds. • Yellow LED lights•Continue to warm-up vehicle to 200 degrees.• Press and hold High Button for 3 Seconds. • Red LED lights • Turn off the vehicle.• Allow vehicle to cool.• Plug in your fan.• Start vehicle and confirm the fan turns on at the correct temperatures.

WIRE HARNESS CONNECTOR

50 of 52
Y

T BA T E R

CONNECT TO GROUND (WHITE)

GROUND (BLACK)

30 AMP FUSE MAXIMUM

FUSE

FAN GROUND (BLACK)

FAN POSITIVE (RED)

+12 VDC (RED)

IGNITION INPUT (ORANGE)

TEMPERATURE SENSOR (GREEN)

TEMPERATURE SENSOR (BLACK)

OPTIONAL SENSOR (PART#: FANPWM-TS)AVAILABLE SEPERATLY

AIR CONDITIONING INPUT (BLUE)

AIR CONDITIONING COMPRESSOR GROUND +12VDC WHEN A/C IS ON

Y

T BA T E R

CONNECT TO GROUND (WHITE)

GROUND (BLACK)

30 AMP FUSE MAXIMUM

FUSE

FAN GROUND (BLACK)

FAN POSITIVE (RED)

+12 VDC (RED)

IGNITION INPUT (ORANGE)

TEMPERATURE SENSOR (GREEN)

TEMPERATURE SENSOR (BLACK)

OPTIONAL SENSOR (PART#: FANPWM-TS)AVAILABLE SEPERATLY

6

ts To:

e 12 VDC Directly to Battery

 Directly to Battery

y Fan Positive

y Fan Ground

ditioning Input

ary Fan Output (Not Used)

emperature Sensor

ts To:

e 12 VDC Directly to Battery

 Directly to Battery

y Fan Positive

y Fan Ground

ary Fan Output (Not Used)

emperature Sensor

ditioning Input (Not Used)

C:

51 of 52
52 of 52