User Manual

Function of the 3 LEDs:
LED “Heating” Controller heats
LED “Cooling” Controller cools
LED “Mode-Display” Programming mode and other special displays
The 4 Keys have the following functions:
Key “Mode-Switch” changes the operation mode
Key “increase value” increases the value of the selected digit
Key “Digit selection” changes the activated digit
Key “Enter” stores the value or the item changed
The function details are described under the chapter „Firmware“.
2.3 In- and Outputs
2.3.1 Overview
The connection is made with two or three connectors.
RS232
1 4
1 8
POWER
CONTROL
View of the terminals
The connection will be made with a 4-pole connector with a grid of 5.08 mm for the supply and power output.
An 8 pole connector with a grid of 3.81 mm makes the connection for the signal voltages with the following pin
configuration:
Voltage supply and power output
Pin configuration 1 Power supply (plus)
2 Power supply (minus)
3 Power output (plus)
4 Power output (minus)
Signal voltages
Pin configuration 1 Signal output (plus)
2 Signal output (minus)
3 Control input (plus)
4 Control input (minus)
5 Input positive (Sensor)
6 Input negative (Sensor)
7 GNG (Sensor)
8 GND (optional shiel for sensor leads)
2.3.2 Sensor Input
The Sensor input can be configured for Pt100, Pt1000 and for a special defined sensor (e.g. PTC or NTC). The
measuring current for Pt100 is 2.0 mA, for Pt1000 it is only 0.2 mA. The measuring current for the special
defineded sensor is selectable in the range of 0.05 … 2.0 mA.
Range of input voltage 50..350mV
Range of maesuring current 0.05 .. 2.0 mA
CoolTronic GmbH Operation Manual Peltier Controller TC2812 Page 2 / 16
Revision: 1.15, Date: 30. Januar 2008 20080130_TC2812_MAN_E