INSTRUCTION MANUALFORTOUCH PANEL MONITORING UNIT

CMT-240-K

PREFACE
Thank you for your purchase of our Touch panel monitoring unit CMT-240-K.
This manual contains instructions for the mounting, functions, operations and notes for the operationof CMT-240-K.
For model confirmation and unit specifications, please read this instruction manual carefully before
starting operation.

To prevent accidents arising from the use of this controller, please ensure the operator
using it receives this manual.

Notes• The contents of this instruction manual are subject to change without notice.
• Care has been taken to assure that the contents of this instruction manual are correct, but if there areany doubts, mistakes or questions, please inform our sales department.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• Shinko Technos is not liable for any damages or secondary damages incurred as a result of using thismanual, including any indirect damages.

SAFETY PRECAUTIONS(Be sure to read these precautions before using our products.)
The safety precautions are classified into two categories: “Warning” and “Caution”.

Caution may be linked to serious results

Depending on circumstances, procedures indicated byso be sure to follow the directions for usage.

Warning
Procedures which may lead to dangerous conditions and cause death or serious injury if not
carried out properly.

CautionProcedures which may lead to dangerous conditions and cause superficial to medium injury or
physical damage or may degrade or damage the product if not carried out properly.

21. Installation precautions(Be sure to read these precautions before using our products.)

Warning
Turn the power supply to the instrument OFF before installation.
Working or touching the terminal with the power switched ON may result in an
Electric Shock which could cause severe injury or death.

CautionSite selection
Mount the unit in a place with:(1) A minimum of dust, and an absence of corrosive gases.
(2) No flammable, explosive gases(3) No mechanical vibrations or shocks.
(4) No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 )that does not change suddenly.
(5) An ambient non-condensing humidity of 35 to 85%RH or less.
(6) The units away from large capacity electromagnetic switches or cables
through which large current is flowing.
(7) No water, oil or chemicals or where the vapors of these substances can come into
direct contact with the unit
When mounting the case to the control panel, tighten the screw with the specified torque.
If excessive force is applied to the screw when tightening, the case may be damaged or bent.

Do not install this instrument near flammable material though the case of this instrument is made offlame resisting resin.
Avoid setting this instrument directly on flammable material.

32. Wiring precautions

Warning
Turn the power supply to the instrument OFF before wiring or checking.
Working or touching the terminal with the power switched ON may result in an
Electric Shock which could cause severe injury or death.
The instrument must be grounded before the power supply to the instrument
is turned on.

Caution• Do not put wire chips into the instrument, because they could cause fire, malfunction or trouble.
• For the DC power source wiring, do not confuse the polarity as described in this instruction
manual.
• For the CMT-240-K ground terminal, use a wire whose thickness is 2mm2 or greater.
However, avoid grounding in conjunction with the power line.
• Use the solderless terminal with an insulation sleeve that fits to the M3 screw when wiring theCMT-240-K terminals.
• Tighten the terminal screw with the specified torque.
If excessive force is applied to the screw when tightening, the screw or case may be damaged.
• The protective device should be used in environmental conditions which may cause damage
to the device or contribute to the deterioration of its parts.

3. Running and maintenance precautions

Warning• Do not touch live terminals. This may cause electric shock or problems in operation.
• Turn the power off before cleaning the module or retightening the screws.
Doing this work while the power is on may result in an electric shock which could cause
severe injury or death.

4Revisions
The manual number is noted at the lower right corner of the back cover.
Print dateJan. 2001
May, 2001

Manual number
CMT22E1 2001.01
CMT22E2 2001.05

RevisionFirst edition
2nd edition: Spelling, grammar and terminology revision

5

CONTENTS
CONTENTS

1. Overview
1.1 Overview of the CMT-240-K ------------------------------------------------------------------------------- 7
1.2 Units and structure of the CMT-240-K ------------------------------------------------------------------ 7
1.3 System configuration ---------------------------------------------------------------------------------------- 8
1.4 Parameter exchange ---------------------------------------------------------------------------------------- 8

2. Mounting to the control panel
2.1 Site selection ------------------------------------------------------------------------------------------------- 9
2.2 External dimension drawing ------------------------------------------------------------------------------ 9
2.3 Panel cutout -------------------------------------------------------------------------------------------------- 9
2.4 Mounting ------------------------------------------------------------------------------------------------------ 10

3. Wiring connection
3.1 Terminal arrangement ------------------------------------------------------------------------------------- 11
3.2 Wiring connection example ------------------------------------------------------------------------------ 12

4. Setup
4.1 How to open the System Mode Main Menu display ----------------------------------------------- 13
4.2 System Setup ----------------------------------------------------------------------------------------------- 13

5. Operation
5.1 Display configuration -------------------------------------------------------------------------------------- 16
5.2 Display operation(1) Title display ---------------------------------------------------------------------------------------------- 16(2) User setting display ------------------------------------------------------------------------------------ 17(3) PV, SV and Control output display ----------------------------------------------------------------- 18(4) All alarm status display ------------------------------------------------------------------------------- 19(5) MV, Heater current value and PID auto-tuning status display ------------------------------ 19(6) Setting item selection display ----------------------------------------------------------------------- 20
5.3 Setting display(1) Setting value change procedure--------------------------------------------------------------------- 21(2) Alarm action change procedure --------------------------------------------------------------------- 22(3) Control output status selection procedure ------------------------------------------------------- 22(4) PID auto-tuning Perform/Cancel selection procedure ------------------------------------------23
5.4 Explanation of each setting display--------------------------------------------------------------------- 24

6. Specifications
6.1 Functional specifications --------------------------------------------------------------------------------- 30
6.2 General specifications ------------------------------------------------------------------------------------ 30

7. Troubleshooting ------------------------------------------------------------------------------------------ 31

6

CMT-240-K

OVERVIEW

CMT-240-K

1. Overview
1.1 Overview of the CMT-240-K
CMT-240-K reads and writes data of up to 20 units (40 points of temperature control) of the 2-channel
temperature control unit (CCT-235) via 2 units of the C series power source host link unit (CPT-20A).
1.2 Units and structure of the CMT-240-K(1) Touch panel monitoring unit
CMT-240-K: Touch panel monitoring unit to communicate with the CPT-20A(2) Power source host link unit
CPT-20A: Link unit to supply the power to the CCT-235 and to communicate
with the CMT-240-K(3) 2-channel temperature control unit
CCT-235-2/: Independent temperature control unit with 2 channels of which
input or output type is the same(4) Heating/cooling temperature control unit
CCT-235/,D: Temperature control unit which enables both Heating andCooling control by 1 channel input(5) Base unit
CBT-210: Base unit for mounting the CPT-20A and the CCT-235
For 1 Base unit, one CPT-20A is required.
A maximum of ten CCT-235 units can be mounted.
CBT-205(6) Communication cable
CPM: Base unit for mounting the CPT-20A and the CCT-235
For 1 Base unit, one CPT-20A is required.
A maximum of five CCT-235 units can be mounted.

: Designated communication cable to connect the CMT-240-K
to the CPT-20A[Note]
2-channel temperature control unit and Heating/cooling temperature control unit can be used together,
however, in this case, there can be no more than 40 control points.
(e.g.) 2-channel temperature control unit
: 4 units (8 channels)
A total of 14 channels
Heating/cooling temperature control unit : 6 units (6 channels)

7

OVERVIEW

CMT-240-K

1.3 System configuration
When using CBT-210
CCT-235-2/, CCT-235-/,D

RS-422A CPT-20A

CMT-240-K

CBT-210[Fig. 1.3-1]

When using CBT-205
CCT-235-2/, CCT-235-/,D

RS-422A CPT-20A

CMT-240-K

CBT-205[Fig. 1.3-2]

1.4 Parameter exchange
Parameter exchange is shown as follows.

CMT-240-K

The CMT-240-K sends command data to the CPT
and receives the response data from the CPT.

RS-422A

CPT-20A

CCT-235

The CPT receives the sent data from the CMT
and sends the data to the CCT.
The CPT receives the response data from the CCT andsends the data to the CMT.
The CCT receives the sent data from the CPT andperforms the control, then sends its response data
to the CPT.

8

MOUNTING TO THE CONTROL PANEL

CMT-240-K

2. Mounting to the control panel
2.1 Site selection
Mount the units in a place with:(1) A minimum of dust, and an absence of corrosive gases.
(2) No flammable, explosive gases(3) No mechanical vibrations or shocks.
(4) No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 )that does not change suddenly.
(5) An ambient non-condensing humidity of 35 to 85%RH.
(6) The units away from large capacity electromagnetic switches or cables
through which large current is flowing.
(7) No water, oil or chemicals or where the vapors of these substances can come into
direct contact with the unit.
2.2 External dimension drawing

195

143

163

150

Effective display area
86.4

Effective display area
115.2

7

40

[Fig. 2.2-1]

143.5 0.3

2.3 Panel cutout

188.5 0.3
[Fig. 2.3-1]

9188

MOUNTING TO THE CONTROL PANEL

CMT-240-K

2.4 Mounting

Packing

Up

Down[Fig. 2.4-1]

Mounting of the packing
Packing

AIP crosssectionEnlarged view

Display part

Groove for packing[Fig. 2.4-2]

10

WIRING CONNECTION

CMT-240-K

3. Wiring connection
3.1 Terminal arrangement
CMT-240-K reverse side
FG
RS-422A SG
RD+
RD+
24Vdc
SDSD+

[Fig. 3.1-1]

Wiring connection between the CMT-240-K and CPT-20A

SD+

2

SD-

5

RD+

3

RD-

4

SG

1

TX/RX

Communication cable
CPM

POWER

CPT-20A

100 to 240Vac
50/60Hz6

Ground[Fig. 3.1-2]
Lead wire solderless terminal
Use a solderless terminal with an insulation sleeve that fits to the M3 screw as shown below.
3.2mm
5.8mm or less

5.8mm or less

3.2mm

[Fig. 3.1-3]
Solderlessterminal

Manufacturer

Model name

Nichifu Terminal Industries CO.,LTD.
Japan Solderless Terminal MFG CO.,LTD.
Nichifu Terminal Industries CO.,LTD.
Round type
Japan Solderless Terminal MFG CO.,LTD.
Y type11

1.25Y-3
VD1.25-B3A
1.25-3
V1.25-3

Tightening torque
0.6N･mMax. 1.0N･m

WIRING CONNECTION

CMT-240-K

3.2 Wiring connection example
One block
TX/RX
POWER

Protocol:Shinko standard protocol

Touch panel
CMT-240-K

TX
PW
01
02

TX
PW
01
02

TX
PW
01
02

TX
PW
01
02

TX
PW
01
02

RS-422A

TX/RX
POWER

CPT-20A[Fig. 3.2-1]

12

TX
PW
01
02

TX
PW
01
02

TX
PW
01
02

TX
PW
01
02

CCT-235 (maximum 10 units)

TX
PW
01
02

SETUP

CMT-240-K

4. Setup
4.1 How to open System Mode Main Menu display
Press the upper left and lower right corners of the display simultaneously after turning on the Touch panel
monitoring unit CMT-240-K [Fig. 4.1-1].
This brings up the System Mode Main Menu [Fig. 4.1-2] of the CMT-240-K.
Note:
From any display, the System Mode Main Menu can be opened by pressing the upper left and lower rightcorners of the display simultaneously.

CautionPress only the “System Setup” and “User Mode” buttons on the System Mode Main Menu.
If this is not done, the unit may not work properly.

System Mode Main Menu
System Setup
System Check
Up/Download
User Mode[Fig. 4.1-1][Fig. 4.1-2]

4.2 System Setup
Pressing the “System Setup” button on the System Mode Main Menu display [Fig. 4.1-2] opens the
System Setup display [Fig. 4.2-1].

Caution• Press only the “RS485 Setup” and “Display Control” buttons on the “System Setup” display.
If this is not done, the unit may not work properly.
• Clock Setup is available on the System Setup display. However, if the power supply to the unit is turnedoff, the value will return to its initial setting.

13

SETUP

CMT-240-K

h RS485 Setup

CautionPress only the Communication Rate button on the RS485 Setup display.
If this is not done, the unit may not work properly.

Pressing the “RS485 Setup” button on the System Setup opens the “RS485 Setup” display.
See [Fig. 4.2-1] and [Fig. 4.2-2].
On this display, press the Communication Rate button.
Each time the button is pressed, communication rate (1200, 2400, 4800, 9600, 19200 or 38400) can beselected.
When the Communication Rate setting is completed, press the ENT button to register the rate [Fig. 4.2-2].
Then the display will revert to the System Setup display [Fig. 4.2-1].
To revert to the System Setup display without setting the transfer rate, press the ESC button [Fig. 4.2-2].
System Setup

Connected
Device

RS232C
Setup

SwitchSetup

Printer
Setup

RS485
Setup

Display
Control

RAM File
Setup

HostCommand
Setup

Display
Direction

SystemLanguage

Clock
Setup

Error Disp
Setup

Communication
Rate

PLC
19200 bps

Parity Check

EVEN

Stop Bit

1

Data Length

7

End[Fig. 4.2-1].

RS485

RS232C
Not Used
RS485

PLC

Detail

ENT

ESC[Fig. 4.2-2].

Display Control setup
Pressing the “Display Control” button on the System Setup display opens the
Display Control setup display. See [Fig. 4.2-1] and [Fig. 4.2-3].
With this display the Brightness adjustment and Display off time can be set.
Brightness Setup
8 grades of brightness can be selected.
The more the * marking moves to the right, the brighter
it gets, and the more to the left, the darker it gets.
Display OFF Time Setup
This function is to turn the display off when switch input has
not been performed for some time.
The time can be set by units of 1 minute up to a maximumof 60 minutes.
If it is required to be turned ON all the time, set it to
0 minutes. After the Display Control setup is finished, press
the ENT button to register.
The display will revert to the System Setup [Fig. 4.2-1].
14Brightness Setup

Display OFF Time
Setup

0min.

ENT

[Fig. 4.2-3]

SETUP

CMT-240-K

h System Setup end
When the “RS485 Setup” and “Display Control” setup are finished, press the END button [Fig. 4.2-1].
The display will revert to the System Mode Main Menu. Then press the User Mode [Fig. 4.1-2].
This brings up the Title display [Fig. 4.2-4], and the control starts.

[Fig. 4.2-4]

15

OPERATION

CMT-240-K

5. Operation
5.1 Display configuration
Title display (P.16)
User setting display (P.17)
Channel name change display (P.17)
The number of blocks of C series setting display (P.17)
DC input decimal point place change display (P.17)
PV, SV and Control output status display (P.18)
All alarm status display (P.19)
MV, Heater current value, PID auto-tuning status display (P.19)
Setting item selection display (P.20)
Main setting value setting (P.24)
Alarm 1 setting (P.24)
Alarm 2 setting (P.25)
Control output ON/OFF status selection (P.25)
Proportional band setting (P.25)
Integral time setting (P.26)
Derivative time setting (P.26)
Anti-reset windup setting (P.26)
Proportional cycle setting (P.27)
PD action manual reset setting (P.27)
Heater burnout alarm setting (P.27)
PID Auto-tuning Perform/Cancel selection (P.28)
Alarm 1 action form selection (P.28)
Alarm 2 action form selection (P.28)
Cooling proportional band setting (P.29)
Cooling proportional cycle setting (P.29)
Overlap band/dead band setting (P.29)
5.2 Display operation(1) Title display[Fig. 5.2-1][Fig. 5.2-2]
After the power supply to the CMT-240-K is turned on, the Title display 1 is indicated for approximately
10 seconds [Fig. 5.2-1], and then Title display 2 [Fig. 5.2-2] and PV, SV and Control output status display[Fig. 5.2-5] are indicated respectively, and the control starts.
16

OPERATION

CMT-240-K(2) User setting display[Fig. 5.2-3][Fig. 5.2-4]

Pressing the “User setting” button on the Title display 1 [Fig. 5.2-1] opens User setting display [Fig. 5.2-3].
On this display the following settings 1 , 2 and 3 can be carried out.
1 Channel name change
Pressing the “Channel” button to be changed opens Channel name change display [Fig. 5.2-4]
and any channel name (4 letters) can be changed.
[Button explanation]
SPC : SpaceBS: Back space
CAPS : Alternates from capitals to lowercase letters.
MARK : Alternates from the alphabet input to numeral and symbol input
SKIP : This button is ineffective.
ESC : Cancels the setting data and reverts to the former display.
ENT : Registers the setting data and reverts to the former display.
Press the “Register” button on the upper right of the User setting display [Fig. 5.2-3] after changing
the Channel name.
Title display 2 [Fig. 5.2-2] and PV, SV and Control output status display [Fig. 5.2-5] are displayed
respectively and the control starts.
2

The number of the blocks of C series setting
Set the number of the blocks by pressing the “Change” button on the lower right of the User setting
display [Fig. 5.2-3].
Block 1 and 2 will be displayed alternately if the “Change” button is pressed.
Press the “Register” button on the upper right of the User setting display [Fig. 5.2-3] after the numberof blocks of C series has been set.
Title display 2 [Fig. 5.2-2] and PV, SV and Control output status display [Fig. 5.2-5] are displayed
respectively and the control starts.
It is impossible to communicate if setting the number of blocks of CMT-220-K does notconcur with the number of the C series blocks.

3

DC input decimal point place change (only for the DC input)
Set the Decimal point place by pressing the “Change” button on the lower left of the User setting
display [Fig. 5.2-3]
The decimal point place can be changed by pressing the “Change” button each time.
Press the “Register” button on the upper right of the User setting display [Fig. 5.2-3] after the decimal
point place has been changed.
Title display 2 [Fig. 5.2-2] and PV, SV and Control output status display [Fig. 5.2-5] will be displayed
respectively and the control starts.
17

OPERATION

CMT-240-K(3) PV, SV and Control output status display
1

2

3

4

5

6

[Fig. 5.2-5]
PV, SV and Control output status are included on this display [Fig. 5.2-5].
The following shows the contents of the display.
CONT: When the control output is on, a green indicator lights.
PV: Indicates process variable.
SV: Indicates setting value.
The tags of upper side of the display are buttons for opening following displays [Fig. 5.2-5].
1 PV, SV : Opens the PV and SV and Control output status display.
2 ALM : Opens All alarm status display [Fig. 5.2-6].
3 MV, CT: Opens MV, Heater current value and PID auto-tuning status display [Fig. 5.2-7].
4 Setting : Opens Setting item selection display [Fig. 5.2-8].
5 Next : Opens the display for CH21 to CH40.
However, when only 1 block has been set when setting the number of blocks of the
C series (P.17), the display for CH21 to CH40 will not be indicated even if the Next
button is pressed.
6 Back : Reverts to the display for CH1 to CH20.

18

OPERATION

CMT-240-K(4) All alarm status display[Fig. 5.2-6]
The status of all alarms is displayed [Fig. 5.2-6].
The contents of the display is as shown below.
A1 : Alarm 1 is indicated by a red light.
A2 : Alarm 2 is indicated by a red light.
HB : Heater burnout alarm is indicated by a red light.
LP : Loop break alarm is indicated by a red light.
UP : If the sensor input exceeds the rated scale high limit value, it is indicated by a red light.
DOW: If the sensor input exceeds the rated scale low limit value, it is indicated by a red light.
(5) MV, Heater current value and PID auto-tuning status display[Fig. 5.2-7]
MV, heater current value and PID auto-tuning status are indicated on the display [Fig. 5.2-7].
Display details are as follows.
AT: While PID auto-tuning is performing, a yellow light blinks.
MV: Indicates control output manipulated variable (%).
Heater current: Indicates heater current (ampere) value.
0.0 is indicated even if the option Heater burnout alarm [code: W] is not applied.

19

OPERATION

CMT-240-K(6) Setting item selection display
Press the following buttons to open each setting display [Fig. 5.2-8].
SV: Main setting value setting display
Alarm 1
: Alarm 1 setting display
Alarm 2
: Alarm 2 setting display
Control ON/OFF: Control output status selection display[Fig. 5.2-8]
If the “Protected” button is pressed, “Not protected” appears.
Pressing the “Not protected” button and one of the other buttons bring up the following setting displays[Fig. 5.2-9].
Proportional band
: Proportional band setting display
Integral time
: Integral time setting display
Derivative time
: Derivative time setting display
Anti-reset windup: Anti-reset windup setting display
Proportional cycle: Proportional cycle setting display
Manual reset: PD action manual reset setting display
Heater burnout: Heater burnout alarm setting display
Auto-tuning: PID auto-tuning Perform/Cancel selection display
Alarm 1 action form selection : Alarm 1 action form selection display
Alarm 2 action form selection : Alarm 2 action form selection display
Cooling proportional band
: Cooling proportional band setting display
Cooling proportional cycle: Cooling proportional cycle setting display
Overlap/Dead band
: Overlap band/Dead band setting display[Fig. 5.2-9]
20

OPERATION

CMT-240-K

5.3 Setting display
To select the setting item, press the item on the Setting item selection display [Fig. 5.3-1].
(It will take several seconds for some setting items to be displayed.)[Fig. 5.3-1](1) Setting value change procedure
The main setting value will be used as an example to explain the procedure.
Even if the setting item is different, the operation is the same as that of the main setting value setting.
1

Press the channel to be changed on the Main setting value display [Fig. 5.3-2].
The display will be switched to the Setting value change display [Fig. 5.3-3].

2

Using the ▲ or ▼ key, change the figure of each digit.
When the change is completed, press the ENTER key [Fig. 5.3-3].
The setting value will be transferred to the CCT-235, and the display will revert to the Main setting
value display [Fig. 5.3-2].

3

Repeat procedure 1 and 2 until the main setting value settings for all channels are finished.

4

If the main setting values for all channels are changed, press the RETURN key.
The display will revert to the Setting item selection display [Fig. 5.3-1].

[Fig. 5.3-2][Fig. 5.3-3]

21

OPERATION

CMT-240-K(2) Alarm action change procedure
Alarm 1 action selection will be used as an example to explain the procedure.
(For the alarm 2, the operation is the same as that of alarm 1 action selection.)
1

Press the channel to be changed on the Alarm 1 action form selection display [Fig. 5.3-4].
The display will be changed to the Alarm action selection display [Fig. 5.3-5].

2

Using the ▲ or ▼ key, select the alarm actions.
After selecting the alarm action, press the ENTER key [Fig. 5.3-5].
The setting value will be transferred to the CCT-235 and the display will revert to the Alarm 1 action
form selection display [Fig. 5.3-4].

3Repeat the procedure 1 and 2 until alarm action selections for all channels are completed.

4

If the setting value of all channels are changed, press the RETURN key.
The display will revert to the Setting item selection display [Fig. 5.3-1].

[Fig. 5.3-4][Fig. 5.3-5](3) Control output status selection procedure
When control output status is on, “ON” is indicated in the frame next to the channel number.
When control output status is off, “OFF” is indicated in the frame next to the channel number [Fig. 5.3-6].
1

When turning control output status off, just press the button of the channel to be turned off.
“OFF” will be indicated by turning the control output status off.

2

To turn the control output status on, just press the button of the channel to be turned on.
“ON” will be indicated by turning the control output status on.

3

If all control output status are set, press the RETURN key.
The display will revert to the Setting item selection display [Fig. 5.3-1].

[Fig. 5.3-6]

22

OPERATION

CMT-240-K(4) PID auto-tuning Perform/Cancel selection procedure
When PID auto-tuning is performing, “ON” is indicated in the frame next to the channel number.
When PID auto-tuning is canceled, “OFF” is indicated in the frame next to the channel number[Fig. 5.3-7].
1

When changing PID auto-tuning status from “OFF” to “ON”, press the button of the channel to beturned on.
“ON” is indicated in the frame next to the channel number and PID auto-tuning starts.
After that, when PID auto-tuning is completed, “OFF” is automatically indicated in the frame next
to the channel number.

2

When changing PID auto-tuning status from “ON” to “OFF”, press the button of the channel to beturned off.
“OFF” is indicated in the frame next to the channel number and PID auto-tuning status is turned off.
However, the values P, I, D and ARW revert to the value before the auto-tuning was performed.

3

If all PID auto-tunings are set, press the RETURN key. The display will revert to the Setting item
selection display [Fig. 5.3-1].

[Fig. 5.3-7]

23

OPERATION

CMT-240-K

5.4 Explanation of each setting display
h Main setting value setting display
Sets the main setting value for all channels.
Setting range: Rated scale range of the CCT-235
Refer to the rated scale of the CCT-235
in the instruction manual for the C series.

h Alarm 1 setting display

Sets the action point of Alarm 1 output for all channels.
However, the setting is not available for the channels
that No alarm is selected on the Alarm 1 action form
selection display (page 28).
Setting range: See [Table 5.4-1] below.

[Table 5.4-1]
Setting range

Alarm action formTC

RTD or TC with decimal point

High limit alarm (with standby)*-200 to 200( )-200.0 to 200.0( )Low limit alarm (with standby)*-200 to 200( )-200.0 to 200.0( )High/Low limits (with standby)*

0 to 200( )0.0 to 200.0( )High/Low limit range (with standby) *0 to 200( )0.0 to 200.0( )Process high alarm (with standby)

Input range minimum to input range maximum value

Process low alarm (with standby)

Input range minimum to input range maximum value
Setting range

Alarm action form

DC voltage, DC current

High limit alarm (with standby)**-2000 to-2000 to

2000
2000

Low limit alarm (with standby)
High/Low limits (with standby)

*

0 to

2000

High/Low limit range (with standby) *

0 to

2000

Process high alarm (with standby)

0 to 10000

Process low alarm (with standby)

0 to 1000024* Setting the value to 0 or 0.0
disables the alarm action.

OPERATION

CMT-240-K

h Alarm 2 setting display

Sets the action point of Alarm 2 output for all channels.
However, the setting is not available for the channels
that No alarm is selected on the Alarm 2 action form
selection display (page 28).
Setting range: See [Table 5.4-1] (page 24).

h Control output ON/OFF status selection display

Sets the Control output ON or OFF status for all
channels.
Control output OFF function:
A function to turn the control output OFF
even if the power to the instrument is supplied.
The function is used when required to halt thecontrol action or when the unit is not being usedin multiple units.

NoticeOnce the Control output OFF function is enabled, the function cannot be released even if
the power to the unit is turned OFF and turned ON again.
To cancel the function, go to the Control output ON/OFF status selection display again,
and press the button of the channel to be cancelled in order to turn the control output on.
h Proportional band setting display

Sets the proportional band for all channels.
For details of the proportional band, refer to the
instruction manual for the C series.
Setting range: 0.0 to 100.0%(ON/OFF action when set to 0.0.)25

OPERATIONh Integral time setting display

Sets the integral time for all channels.
For details of the integral time, refer to the
instruction manual for the C series.
Setting range: 0 to 3600 seconds(Off when set to 0.)

h Derivative time setting display

Sets the derivative time for all channels.
For details of the derivative time, refer to the
instruction manual for the C series.
Setting range: 0 to 3600 seconds(Off when set to 0.)

h Anti-reset windup setting display

Sets the anti-reset windup for all channels.
For details of the anti-reset windup, refer to the
instruction manual for the C series.
Setting range: 0 to 100%

26

CMT-240-K

OPERATION

CMT-240-K

h Proportional cycle setting display

Sets the Proportional cycle for all channels.
Setting range: 1 to 120 seconds

h PD action manual reset setting display
Sets PD reset (offset correction) for all channels.
The setting is available during PD action only.
Setting range: Proportional band converted value[However, the range for TC and RTD input:-199.9 to 999.9 ( )The range for DC input: -1999 to 9999]

h Heater burnout alarm setting display
Sets heater current value of Heater burnout alarmfor all channels.
The setting is available only when the option [W] isapplied to the CCT-235.
For Heater burnout alarm action drawing, refer to the
instruction manual for the C series.
Setting range:
Rating 20A: 0.0 to 20.0A
Rating 50A: 0.0 to 50.0A
Off when set to 0.0.
It is recommended to set approx. 80% of the Heater
current value (setting value) considering the voltage
fluctuation.

27

OPERATION

CMT-240-K

h PID Auto-tuning Perform/Cancel selection display
Sets PID Auto-tuning Perform or Cancel for all channels.
For the details of PID auto-tuning, refer to the instruction
manual for C series.
During AT performing, other settings cannot be performed.
Do not perform Auto-tuning for the channels
whose control is ON/OFF or PD action.

h Alarm 1 action form selection display
Selects Alarm 1 action form for all channels.
Action form: See [Table 5.4-2] below.
For alarm action drawing, refer to the instruction manual
for the C series.

[Table 5.4-2]
Alarm action form
No alarm
High limit alarmHigh limit alarm with standby
Low limit alarm
Low limit alarm with standby
High/Low limits alarm
High/Low limits alarm w/standby
High/Low limit range alarm
High/Low limit range alarm w/standby
Process high alarm
Process high alarm with standby
Process low alarm
Process low alarm with standby

Character
---H
H W
L
L
W
HL
HL W
WID
WIDW
PH
PH W
PL
PL W

h Alarm 2 action form selection display
Selects Alarm 2 action form for all channels.
Action form: See [Table 5.4-2] above.
For alarm action drawing, refer to the instruction manual
for the C series.

28

OPERATION

CMT-240-K

h Cooling proportional band setting display

Sets the proportional band for cooling side.
However, this item is available only when the CCT-235 is
specified as Heating/Cooling.
Setting range: 0.0 to 10.0 times the main proportionalband(ON/OFF action when set to 0.0.)

h Cooling proportional cycle setting display

Sets the cooling proportional cycle.
However, this item is available only when the CCT-235 is
specified as Heating/Cooling.
Setting range: 1 to 120 secondsh Overlap band/Dead band setting display
Sets the Overlap band and Dead band for Heating andCooling control outputs.
+ setting value: Dead band– setting value: Overlap band
However, this item is available only when the CCT-235 is
specified as Heating/Cooling.
Setting range: -100.0 to 100.0 ( ) (for TC and RTD input)-1000 to 1000 (for DC input)

29

SPECIFICATIONS

CMT-240-K

6. Specifications
6.1 Functional specifications
Display function
Display device
Color
Resolution
Size
Effective area
Input function
Switch system
Switch type

Colored LCD
16 out of 512 colors
320 x 240 dots
5.7 inches
115.2 x 86.4mm (W x H)
Transparent conductive touch switch
Momentary, Alternate, Auto-repeat

6.2 General specifications
Electricity specification
Rated voltage
20.5 to 28.8Vdc
Power consumption 24VA or lessDielectric strength
1.0kVdc for 1 minute between power terminal and ground
Insulation resistance 20M or greater at 500Vdc between power terminal and ground
Environment specification
Ambient temperature 0 to 50 (32 to 122 )Ambient humidity
15 to 85%RH (Non-condensing)Vibration-proof
Based on JIS-C0911
5 to 55Hz, 2G X, Y, Z each direction for 2 hours
Impact-proof
Based on JIS-C0912
10G 12ms or less X, Y, Z each direction
Noise-proof (power source)
1000VP.P (Pulse width 100ns, 1000ns) common mode
Noise-proof (communication)
500VP.P (Pulse width 100ns, 1000ns) capacity coupling
Using atmosphere
No corrosive gases present
Structure specification:
Mounting structure
Panel mounting system
Protecting structure IP65F (for front panel section when using drip-proof packing)External dimensions 195 x 150 x 47mm (W x H x D)
WeightApprox. 850g or less30

TROUBLESHOOTING

CMT-240-K

7. Troubleshooting
If any malfunctions occur, check that the power is supplied to the CMT-240-K and the C series.
When the power is supplied to the C series, the green LED Power (PW) indicator lights up.
Check the following when the C series does not work even if its indicator lights up.

Warning
Turn the power supply to the instrument OFF before wiring or checking.
Working or touching the terminal with the power switched on may result in an
Electric Shock which could cause severe injury or death.

Problem: The control output of the CMT-240-K cannot be turned on. (Temperature does not rise.)Presumed cause

Solution

The setting value has not been set yet.

Set the setting value from the CMT-240-K (P. 24)
Turn the control output on from theCMT-240-K (P. 25).

Control output status has been turned off.
Problem: Setting from the CMT-240-K is impossible.
Presumed cause

Solution

Auto-tuning is performing.

Cancel the auto-tuning (P. 28).

Problem: Communication is impossible. (“Serial COM Error” is indicated on the display.)
Presumed cause
Data transfer rates of CMT-240-K and CPT-20A do
not concur.
Setting the number of blocks of C series from theCMT-240-K does not concur with the number ofblocks actually connected to the C series.

SolutionSet the same transfer rate to both. (P. 13, 14)

The communication cable is disconnected.

Change the communication cable.

Wiring of the communication cables is wrong.

Wire the cable properly (P. 11).

Set the number of blocks of C series of
CMT-240-K to the number of blocks actuallyconnected to the C series (P. 17)

Problem: Display of the CMT-240-K suddenly disappears.
Presumed cause“Display OFF Time Setup” of CMT-240-K has beenset.

SolutionSet the “Display OFF Time” to 0 minutes(P. 13, 14).

If any other problems arise, make inquiries at our agency or the shop where you purchased the unit.

31******* Inquiry *******For any inquiry about this unit, please contact the shop where you purchased theunit or our agency
Please let us know the details of malfunction, if any, and the operating conditions.

SHINKO TECHNOS CO.,LTD.
OVERSEAS DIVISION

Reg. Office : 2-48, 1-Chome, Ina, Minoo, Osaka, Japan
Mail Address : P.O.Box 17, Minoo, Osaka, JapanURL: http://www.shinko-technos.co.jp
Tel : 81-72-721-2781
E-mail: overseas@shinko-technos.co.jp
Fax: 81-72-724-1760
No.CMT22E2
32

2000.05