Digital Indicating Controller

LT45A/47A SERIES
LT45A/47A series is digital indicating controller withindicating accuracy of ±0.1% and the control cycle ofapproximately 0.1 second.
3 types of auto tuning functions and overshootsuppression functions achieve superior controlstability.
Combination of internal computing function andenriched input and output option support various
usage scenarios.
Special loader software provides ease of setting
operations and data acquisition.

■MODELS■FEATURES

LT45A□□□□□□□□□/LT47A□□□□□□□□□●Compact design
Short depth of instrument (case 65mm) saves the space of
instrument and control board.
●Universal input
Input type is user-changeable from among thermocouple, resistancethermometer, DC voltage and DC current.
●Outstanding controllability
Control system can be selected from two-position control and PIDcontrol.
It has overshoot suppression function and high-functional PID.
●3 types of auto tuning
Can be selected from normal, rapid-response, stable tuning on thecontrol target.
●Various input / output signal (optional) are available.
Current transformer input 2 points, event output 3 points (Max),
remote signal input 4 points and communication interface (RS485).
●Conformance to international safety standards
CE marking, RoHS
●Loader software is available
Various parameter settings and data acquisition can be done easily
using loader software (sold separately).

Terminal
Measur- Control I/Oing input output option type Power Extra

LT45A

48mmX96mm front size

LT47A

96mmX96mm front size
0*3

Universal input
Control output 1

Control output 2

1 0

ON-OFF pulse output—

2 0ON-OFF servo output—

5 0

SSR drive pulse output—5 3

SSR drive pulse output Current output

5 5

SSR drive pulse output SSR drive pulse output

5 6

SSR drive pulse output Voltage output

3 0

Current output—

3 3

Current output

Current output

3 6

Current output

Voltage output

6 0

Voltage output—

Voltage output

Voltage output

6 6■PARTS NAMES OF FUNCTIONS

1Event output 3 points

2
3

Event output 3 points,
Transmission signal output (current output)
Event output 3 points,
Transmission signal output (voltage output)*3,5 4

Event output: 2 points (independent contact)

5

Event output: 2 points (independent contact),
Transmission signal output (current output)
Event output: 2 points (independent contact)
Transmission signal output (voltage output)①①③②②③④④⑤⑥⑧⑨⑦⑤⑦⑧⑥⑨⑩Specifications*3*3 6—0⑩① Upper display:② Lower display:

Displays PV values (temperature, etc.).
Displays SP values (preset temperature, etc.) or
setting items.
③ Status display lamp:
MAN: Lights when MANUAL (manual mode).
RSP: Lights when remote SP input. (Local SP input
when light OFF)EV1 to EV3: Lights when event outputs are ON01 to 02: Lights when the control output is ON④ Multiple functions indicating lamp:
User-settable max. 3 sets combination of conditionand status as preferred functions (alarm, READY,etc.).
⑤ [FUNC] key:Press 1 second or longer, then enters frequently
used functions and operations set in advance.
The function is disabled at factory default.
⑥ [DISPLAY]/[DSP] key: Switch display in operation mode. Or back tooperation mode from parameter setting mode.
⑦ [MODE] key:
Switches the display⑧＜,∨,∧ Key :Used for incrementing numeric values andperforming arithmetic shift operation.
⑨ [ENT] key:
Start to change setting and set value.
⑩ Loader connector:
Connects to a personal computer by using USB
loader cable.



Current transformer input: 2 points,
External signal input:4 points
Current transformer input: 2 points,
External signal input: 4 points,
Communication interface RS485
Current transformer input: 2 points,
External signal input: 2 points,
Remote signal input
Current transformer input: 2 points,
External signal input: 2 points,
Remote signal input,Communication interface RS485*1,2 1*1,2 2*1,2 34

Terminal block type0AD

100 to 240V AC, Terminal block type
24V AC/DC, Terminal block type
00 No additional treatment
Y0 Complying with the traceability certification
T0 Tropical treatment
K0 Sulfur resistance treatment*1 : Current transformer is sold separately.
*2 : Current transformer input not available whenON-OFF servo output is selected as control output. Then it becomes motorized feedback input.

*3 : 24V AC/DC power supply can not be selected.
*4 : Non-conforming to CE, UL/cUL.
*5 : Event output are 2 types, specify models of 3 point (common) or 2 points (independent).

PSE-811

LT45A/47A SeriesCompact Bodies
Easy-to-read display
On the display, measuring value (PV) is indicated in green and setting value(SP) is indicated in orange LEDs.

Frequently used operation
can be assigned to the FUNC key

96mm

96mm

By assigning frequently used operation such as Auto/Manual andRUN/READY to the FUNC key, only one press of a button enables switching
the functions.

65mm
48mm
96mm
There are size 48x96mm and 96x96mm available.
Depth is only 65mm, so it is space saving for any installation

Advancedcontrollability

65mm

Overshoot suppression
factor Small(SP)

(SP)
PVPV

Overshoot suppression
factor Large

High-performance PID
PIDTimeTime

In addition to the conventional PID, “High-performancePID” is available which has unique algorithm aim toconverge hunting quickly to decrease settling time.

By “Overshoot suppression function” which controls overshoot at SPchanging and/or disturbance response, the control has been able todevelop stronger resistance for disturbance and superior stability.

Three types of Auto tuning

Step control

Along with the standard algorithm, auto tuning for a target which hasrelatively good responsiveness and for a target which has good heatretention are provided to perform appropriate control easily.

Preset maximum 8
setting values andeach step can reserve hold time andramp setting. Thisfunctiondelivers
maximum 8 steps
program control

Zone PID control

STEP1 STEP2

STEP3

STEP4

When PID parameter change is necessary depending on thetemperature range such a case as furnace temperature control, preregistered 8 groups of PID parameters are assigned to every set
temperature ranges (max. 8 zones) and perform operation byautomatically changing the parameter depending on the measuringvalue (or setting value).

STEP8

Various combinations of input and output
Control output (select at model)
ON-OFF pulse output
ON-OFF servo output
Current output
SSR drive pulse output
Transmission signal output (option)
Measuring value (PV)
Setting value (SP)Control output (MV) etc.
Event output (option)
3 points
2 points (independent contact)
Loader connector
Support loader software 1 port

Universal input
Thermocouple
15 typesRTD
2 types
DC Voltage / Current 9 types
Remote signal input (option)
1 point
Current transformer input (option)
2 points
External signal input (option)
4 points
Communication (option)
RS485 1 port

*Various parameter settings are available from PC by using dedicated loader software. However, it requires dedicated loader cable (sold separately).

Internal event can be output as external
digital (contact) output by logical operation.

Loader software (sold separately)

On LT45A/47A…
Event 1
Event 2
Event 3
ProgramOperation

3 points of event can be output
Result of the logical operation which performed on selected five pointsof various internal events is able to be assigned to the three points ofexternal digital outputs. It can simplify process of event outputs which
logical operation was conventionally performed on receiver side.

Various parameter settings and data acquisition are available by connecting
this controller to the PC which the loader software is installed.

2

■ SPECIFICATIONSPower consumption:
DC power supply:●Input specifications
Input signal:

Universal input (Thermocouple, Resistance Thermometer, DC
voltage/current)
Range type:
Refer to a measuring range table
Input sampling cycle: 100ms
Accuracy rating: ±0.1%FS±1digitReference junction compensation accuracy:±0.5ºC (at ambient temperature 23ºC ± 2ºC)

Safety standards:
Weight:■ OPTION

External signal input:

Input point: 4 points
Function: AUTO/MANUAL, RUN/READY, SV, Timer
Stop/Start and etc. Total 20 functions
Transmission signal output: Current output type: 0 to 20mA DC or 4 to 20mA DC
current output
Allowable load resistance: 600Ω and/or lower
Output accuracy: ±0.1% FS (at ambienttemperature 23ºC ± 2ºC),
however, 0 to1mA is at ±1% FS
Voltage output type: 0 to 5V DC/ 1 to 5V DC or 0 to
10V DC voltage output
Allowable load resistance: 1000Ω and/or higher
Output accuracy: ±0.1% FS (at ambient
temperature 23ºC ± 2ºC),
however, 0 to 0.05V is at ±1% FS
Current transformer input(CT) Input point: 2 points
CT sold separately: Ø5.8 (LTA-P207), Ø12 (LTAP208)
Measuring current: 0.4 to 50.0A
Display accuracy: ±5% FS
Communication interface
Communication type: RS485
Connection unit: Max. 31 units
Communication speed: Max. 38,400bps
Communication protocol: MODBUS
Terminating resister: Connection prohibited●Control specificationsOutput type:

ON-OFF pulse output type 1c 250V AC/ 30V DC 3A(resistance load)
ON-OFF servo output type 1a 250V AC 8A(resistance load),
FB resistance: 100 to 2500Ω
Current output type 0 to 20mA DC, 4 to 20 mA DC (It can bechanged by the setting)
Voltage output type 1 to 5V, 0 to 5V, 0 to 10V (It can bechanged by the setting)
SSR drive pulse output type 19V DC±15%, Internal
resistance 82Ω, Allowable current Max. 24mA DC●Event output
Output point:
Contact capacity:
Output type:Type:

AC power supply: 12 VA and/or lower
12 VA and/or lower (24V AC) 8W and/or lower(24V DC)CE marking compliant product
LT45A 250g, LT47A 300g

Max. 3 points
250V AC/ 30V DC 2A (resistance load)
Relay output 1aAbsolute value, deviation, loop diagnosis, timer, heater
disconnection and etc. Total 33 types*Event output is a standard feature.

●General specifications
Ambient temperature range: 0 to 50°C
Power supply voltage range: AC power supply: 100 to 240 V AC, 50/60HzDC
power supply:
24 V AC, 50/60Hz/24V DC■ MEASURING RANGEC01Set value

Input type

KJ
Thermocouple

ETR
S
B
N
Platinel
WRe5-26

RTD

DC voltage/current

NiMo
PR40-20DIN U
DIN L
CR-AuFe
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt100
Pt100
JPt1000 to 10mV−10 to 10mV
0 to 100mV
0 to 1V
1 to 5V
0 to 5V
0 to 10V
0 to 20mA
4 to 20mA

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41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
81
82
83
84
86
87
88
89
90

Measuring range
−200
0
0.0
0.0
0.0
−200.0−200.00
0.0
0.0−200.00.0
0.0−200.0
0
0
0
0
0
0
0
0
0
−200.0−100.00.0−200.0−200.0−200.0−200.0−100.0−100.0−100.0−100.0−100.0−100.0
−50.0
−50.0
−50.0
−50.0
−60.0
−60.0
−40.0
−40.0
−10.00−10.00
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0

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Accuracy
1200℃
1200℃
800.0℃
600.0℃
400.0℃
400.0℃
200.0℃
1200℃
800.0℃
600.0℃
400.0℃
800.0℃
600.0℃
400.0℃
1600℃
1600℃
1800℃
1300℃
1300℃
1400℃
2300℃
1300℃
1900℃
400.0℃
800.0℃
360.0 K
500.0℃
500.0℃
200.0℃
200.0℃
300.0℃
300.0℃
200.0℃
200.0℃
150.0℃
150.0℃
200.0℃
200.0℃
100.0℃
100.0℃
40.0℃
40.0℃
60.0℃
60.0℃
60.00℃
60.00℃
100.0℃
100.0℃
200.0℃
200.0℃
300.0℃
300.0℃
500.0℃
500.0℃±0.1%FS±1digit
Minus area is±0.2%FS±1digit

Under 100℃：±0.2%FS, 100 to 1600℃：±0.15%FS
Under 260℃：±4.0%FS, 260-800℃：±0.4%FS, 800 to 1800℃：±0.2%FS±0.1%FS±1digit, Minus area is ±0.2%FS±1digit
0〜300℃：±2.5%FS, 300 to 800℃：±1.5%FS, 800 to 1900℃：±0.5%FS±0.1%FS±1digit, Minus area is ±0.2%FS±1digit±1.5K±0.1%FS±1digit±0.15%FS±1digit±0.1%FS±1digit±0.15%FS±1digit
The scaling and decimal point
position can be changed variably
in a range of -1999 to +9999±0.1%FS±1digit

Lower limit of indication value of B thermocouple is 20℃*●Applicablestandards
・Thermocouple
K,J,E,T,R,S,B,N :Platinel :WRe5-26 :DIN U,DIN L :NiMo :JIS C 1602-1995
Engelhard Industries(ITS90)
ASTEM E988-96(Reapproved 2002)
DIN43710-1985
ASTEM E1751-00

PR40-20 :CR-AuFe :Johnson Matthey
Hayashi Denko

3・Resistance thermometer
Pt100 :JIS C 1604-1997
JPt100 :JIS C 1604-1989

■ ACCESSORY■TERMINAL BOARD

Item

Model

Attachment (for terminal block type)100-240V AC

L4A-11-□

ManualON-OFF pulse■ OPTIONAL SOFTWAREItem

24V AC(Non polar)

Model

Loader software (cable included)

LTA-S001

Loader software

LTA-S002

Loader cable

LTA-S003

Control output

Power supply

LTA-P307

ON-OFF servo
Event output
SSR driver pulse / Current /Voltage

Relay
SSR driver pulse / Current /Voltage
Current / Voltage / SSR
driver pulse■ ACCESSORY (Sold separately)
Item

Relay
Individual contact

Model

Hard cover
Soft cover
Terminal cover

LT45A

LTA-P301

LT47A

LTA-P302

LT45A

LTA-P303

LT47A

LTA-P304

LT45A

LTA-P305

LT47A

LTA-P306

Current transformer

Current or Voltage
Input

LTA-P307

Shunt resister 250Ω

EZ-RX250

DI

CT input
External signal input
Measurement input

FB input

LTA-P207 (5.8 mm hole dia.)
LTA-P208 (12 mm hole dia.)

Attachment

Transmission signal output

RSP/DIRSP input

Thermocouple

External signal input
RTD

Communication
Communication interface
RS485

CurrentVoltage■DIMENSIONS●LT45A
Bracket(Accessory)

43.8

Terminal screw
M37.27.2●Minimum clearance
for plural installation●Panel cutout●Minimum clearance
for plural installation●Panel cutout
more than 30 44+0.5（48×N-4）
0+0.5
0

N : Nos. of mounting

more than 30

92 +0.50more than 30

92 +0.50

92 +0.50(96×N-4) +0.5
N : Nos. of mounting
092 +0.5
0

92 +0.50more than 30

65

91.8

96

91.8

59665

48

Terminal screw
M3

105

591.8

96

Bracket(Accessory)

105●LT47A

Unit : mmSpecifications subject to change without notice. Printed in Japan (I) 2014. 1232-8 KUMANO-CHO,ITABASHI-KU,TOKYO 173-8632
Telephone : +81-3-3956-2171
Facsimile : +81-3-3956-0915
E-mail : inter@chino.co.jp
Website : www.chino.co.jp/"