Instruction Manual Revision 8.

P-1OOC
Transformer Digital Temperature Controller
[4~20mA DC, RS485 Communication Function]

Instruction Manual

http://www.poard.co.kr
191, Haedong-ro, Dong-gu, Daegu, Korea 701-040 Tel +82.53.964.0475 Fax +82.53.964.1906

©May 2016 All rights reserved

 Table of contents

※ Safety Precaution ----------------------- 3

1 Introduction ----------------------- 5

2 Features ----------------------- 5

3 Product Overview ----------------------- 6

4 Set Up Method ----------------------- 7

5 Specification ----------------------- 9

Function and
6 ----------------------- 9
Operation

Terminal Wiring
7 ----------------------- 11
Diagram

8 Dimension ----------------------- 11

9 Sensor ----------------------- 11

10 Fan Wiring Diagram ----------------------- 12

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 Safety Precaution

■ Thank you for purchasing P-100C.

■ P-100C is a transformer digital temperature controller.
■ This manual is to guide you for safe and correct use of P-100C.
Please read it carefully and understand the contents of instruction manual fully before use.

■ Safety precautions for installation

1. Installation of this production is limited to indoor or in a closed place clear of followings:

◎ Corrosive gases ◎ Moisture or high humidity ◎ Dust

◎ High radio frequencies ◎ Poor ventilation or air circulation
◎ Explosive substances ◎ Vibration or heat
If outdoor installation is the only option, protection housing should be built to avoid no rain or sunshine.

2. Do not fasten the case engagements too tightly.

3. The circuit for sensor wires (PT-100Ω sensor connection 3 wires) use delicate signals less than 1V.

For normal function and operation, please complete installation in compliance with followings.
3-1 To avoid noises, isolate sensor signal wires from high voltage cables such as power cables, power lines,
and power loading lines.

3-2 Isolate control cabinet from relay output lines and control lines. Otherwise measurements can fluctuate
due to high reverse current during relay operation.
3-3 Sensor wires included in the product unit are not equipped with grounding unlike conventional sensor
wires used for other transformer temperature controllers. Therefore, it is prohibited to use under or near to

high voltage environment. Especially, if extension sensor wires are used for remove control, errors can occur
or measurements can be unstable. If remove installation is required, please use conventional sensor wires

with ground in accordance to manufacturer's instructions.

■ Type of Safety Precautions

Following symbols are used in this manual to ensure safe operation.
Follow all the warnings and cautions before attempting to install or operate this product.

- WARNING indicates a potentially dangerous situation

Warning
that
will cause death or heavy wound unless it is avoided.
Caution - CAUTION indicates a potentially dangerous situation that will
cause a slight injury or a medium-degree injury or property
damage unless it is avoided.
Electric - ELECTRIC SHOCK indicates a caution against potential
shock electric shock.

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■ Warning

Do not attempt to disassemble or modify this product without manufacture's approval.

Turn off the power supply in case of repair service and do not supply operation power as well as constant

power before problem is resolved. Failure to do so could result in injury or death from electric shock.

Maintenance work should be performed only by licensed electricians trained in the installation

and servicing of electrical equipment.

■ Caution

- The contents of this manual are subject to change without prior notice.

- Do not install this product near to the presence of explosive gas and hazardous substance.

- Do not use bolts longer than speficied and also use specified fastener only.

- Do not install in places subject to sun light or rain.

- Forcible fastening can damage bolts, nuts, and support poles.

- Connection to rear terminal should be done in reference to marked numbers.

- Connection to rear terminal should be done in reference to marked numbers.

- Isolate input signal wires from power cables, power lines, and loading cables to avoid inducing noise.

- Isolate sensor circuit [no 1 - no 3] i.s. input signal wire from output signal wires. If this is impossible, input

signal wires should be shielded for protection.

■ Caution Electric shocks

- Operation power is high at AC 80V to 265V or DC 100V to 300V. Pay high attention to avoid electric shock

attention in electric shock.

- Wires for incoming power supply must be fed to terminal no. 12 and 13 in compliance with appropriate

standards and specifications.

- Be aware of high voltage power AC 80V to 265V or DC 100V to 300V is supplied to following output terminals

Alarm 1 [No 8 to No 9], Alarm 2 [No 10 to No 11], FAN MOTOR [No 6, No 7] and pay

attention to avoid electric shock.

- Use power terminals for electric wiring purpose and do not use damaged wires.

- Do not use power terminals while power is on or during operation. Turn off power before use.

■ Caution Electric shocks

Transformer installation can cause electrical voltage due to unstability in ground line. Therefore, properly

ground P-100C following electricity safety standards not to increase electrical voltage at outside of housing.

■ Never attempt to disassemble this product without the manufacturer's approval. and instructions. Please

contact quality control department for further instructions.

Tel : +82.53.964.0475 Fax : +82.53.964.1906

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1. Introduction
P-100C is a device for monitoring and controlling transformer temperature using a thermal sensor PT-100Ω

and it is to be installed where fire safety is required. It prevents the secondary damage from thermal increase

by temperature monitoring and minimizes power loss by controlling cooling fan. Furthermore, long distance

control via analogue communication (4-20mA) or RS-485 communication enables establishing a network of

several devices and controlling them at the same time.

2. Features
2-1 3 wire usage: It operates while receiving the input from a thermal sensor PT-100Ω.

2-2 Peak value display function: Highest temperature i.e. peak is recorded and observed in a separate display

screen designated for peaks only.

2-3 Digital correction: Analogue temperature correction is replaced with digital correction method, which

enhances accuracy of temperature measurement.

2-4 Two steps of precaution: Alarm 1 and alarm 2 state different level of precautions for instant and flexible

reaction.

Alarm 1 : When temperature exceeds the HI value, LED signal for Alarm 1 turns on.

Alarm 2 : When temperature exceeds the HI-HI value, LED signal Alarm 2 turns on.

2-5 Optional manual mode for FAN: It is possible to choose fan operation in between manual mode and auto

mode. Default setting is auto mode and it is user changeable to manual mode.

2-6 Precaution display: In case of wrong, missing, or damaged connections in the

sensor, display states precaution

2-7 Warning signal: In case of wrong, missing connection, or damaged connections in the sensor,

LED lights for FAN, FAULT and BZ.STOP turn on, FAN Relay output sends.

2-8 Remote monitor and control: Equipped with RS-485 communication, remote monitor and control from a

long distance are possible.

Default Setting values

FAN ON : 100 ℃, FAN OFF : 80 ℃, Alarm 1 : 110 ℃, Alarm 2 : 130 ℃

Device No : 1, Analogue output range : 0.0 ℃ ~ 200.0 ℃

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3. Product Overview

3-1 DISPLAY
Indication ① STANDARD DISPLAY Present temperature and setting value

department ④ PEAK VALUE DISPLAY Temperature data at peak

② Alarm 2 LED Alarm 2 signal

③ Alarm 1 LED Alarm 1 signal

⑤ FAN/ON AUTO LED Automatic fan operation

Output
⑥ FAN/ON MANUAL LED Manual fan operation
department
⑦ COMM LED RS-485 communication

⑧ FAULT LED Sensor fault indication

⑨ BUZZER. STOP LED Malfuction or precaution indication

3-2 Control
Enter to setting mode and Exit setting mode and move to
save values present temperature

Increase setting value(INC) Turn off audible alarm

Decrease setting value(DEC)

Manual operation for fan ON/OFF
CPU RESET

※ When the device does not function normally, press button with a pin.

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4. Set Up Method
※ button activates setting mode and to exit from setting mode and to see temperature data,

press button. Adjust setting value with up and down buttons and to save it, press

button. You will hear a long buzzer confirming that setting value is saved normally.

▶ Present temperature display

▶ PEAK value display

※ To return to present temperature, press button.

▶ Alarm 1 Set value for alarm 1 operation

▶ Alarm 2 Set value for alarm 2 operation

▶ FAN ON temperature setting display

Cooling fan will turn on at the set temperature.

▶ FAN OFF temperature setting display

Cooling fan will turn off at the set temperature.

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▶ Channel setting for RS-485 communication display

▶ Alarm 1, Alarm 2 Buzzer ON/OFF setting display

▶ Test screen : Compulsory operation of Alarm 1, Alarm 2,

FAN Relay and LED with [ON : INC Key, OFF : DEC Key]
- Pay attention that test screen results in compulsory operation
for output contact. Long use of test screen may lead abnormal
control operation.

▶ 4 ~ 20mA Output High temperature setting display

▶ 4 ~ 20mA out-put Low temperature setting display

(Temperature that's 0℃ or lower is not applicable)

▶ Channel setting display

- SS A. (4-20mA DC) : Analog communication mode
- SS d. (ASCII) : RS-485 communication mode
- SS U. (MODBUS-RTU) : RS-485 communication mode

▶ Present temperature display

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 Buzzer beeps when button is pressed for movements.
Long buzzer beeps when setting value is saved.
If you exit pressing button, setting will return to default.

5. Specification
5-1 Sensor Input: PT-100Ω 3 Wires (JIS/IEC certified) 5-8 Operating environment

5-2 A line resistance : 10Ω/LINE below ① Operation temp and humidity : -10℃~60℃, 10%~80%

5-3 Measurement and indicate a cycle : 200ms/channel ② Storage temp and humidity : -25℃~70℃, 5%~95%

5-4 Precision : ±0.5℃(Full Scale) 5-9 Electric Current output : DC 4~20mA(Load resistance 600Ω less)

5-5 Measuring range : -25℃ ~ 230℃ 5-10 Communication Function : RS-485 - ASCII, MODBUS-RTU

5-6 Temperature indication scale : 0.1℃ 5-11 Temperature display : Current temperature, Peak temperature

5-7 Relay Output contact 5-12 Size : 153(W) × 92(H) × 148(D)

- FAN MOTOR Control Relay 5-13 Use voltage : AC 80~265V(50/60㎐), DC 100~300V

(16A 250VAC, 16A 30VDC(Max.) 5-14 Use electric power : 5VA(Max)

- Alarm 1 Relay, Alarm 2 Relay 5-15 Weight : 660g

(10A 250VAC, 10A 30VDC(Max.) 5-16 CMRR(Common Mode Rejection Ratio) : 120db more

5-17 NMRR(Normal Mode Rejection Ratio) : 50db more

※ Note : Output for electric current is DC 6V~24V and output for use of RS-485 is DC 5V.

6. Function and Operation

6-1 Alarm 1, Alarm 2 Function

- When the present temperature exceeds setting value, it operates RELAY for output with Buzzer beeping

and turns on LED simutaneously.

- Alarm 1 goes on immediately after present temp. exceeds setting value, Alarm 2 goes on 10sec

later (As Alarm 1 Buzzer sound and Alarm 2 Buzzer sound are different,

user can notice emergency status easily so take immediate action promptly)

6-2 FAULT display and output function

- In case of wrong or missing or damaged connections

will be displayed and the FAN, FAULT and BZ.STOP LED indicator turn on, FAN Relay output is sent.

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6-3 FAN AUTO / MANUAL Function

- Manual On/Off switch for FAN

- When manually operated, FAN(MAN) LED lights on.

※ Auto mode is given priority over manual mode.

6-4 TEMP. PEAK Function

▶ Present temperature display

▶ Push the key to display PEAK value

Display the highest temperature which is measured untill now

( If you want to delete PEAK value, push the button)

6-5 Alarm Function - Buzzer

In case of Alarm 1 and Alarm 2 or sensor error, Buzzer beeps.

※ Press the Key, when you want to stop buzzer beeping.

6-6 Analog communication function - 4~20mA

(When operation power is supplied, output between 4~20mA appears as 20mA or 4mA for 20 seconds)

▶ If setting values are

At 0℃, output displays 4mA for actual output 4-20mA and at

200℃,it displays 20mA for actual output 4-20mA.

6-7 RS-485 Communication Function (MODBUS-RTU)

- Using the RS-485 communication, remote monitor for operation status and alarm status is possible.

▶ Baud rate : 9600bps ▶ Parity bit : None

▶ Data bit : 8bit ▶ Stop bit : 1bit

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7. Terminal wiring diagram

8. Dimension ( CUTTING SIZE 136Χ75 )

9. Sensor specific
※ Caution : Do not attempt to extend sensor wires. This can cause a failure or malfuction.
In case extention is required, please contact us for further instructions.

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10. FAN wiring diagram
※ Caution : Cooling fan should only be powered by AC220V. If operation power is not AC220V but DC,

cooling fan will not operate and cause a heat problem.

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