Controller functions
Version 1
RES-402
Page 21
• By connecting a 2kohm potentiometer to terminals 10, 12, 15:
In order to be able to select the set point with a potentiometer, the controller makes a +10VDC (
±
5%
)
reference
voltage available at terminal 10.
The relationship between the potentiometer setting and the SET temperature is linear.
The connecting wires between the controller and the potentiometer must be shielded.
If a ROPEX PD-3 precision potentiometer is used, the SET temperature can be adjusted exactly with the help of
the digital display in the window of the dial. The number which appears on the display corresponds to the SET
temperature in °C.
The set point that is selected for the heatsealing temperature must be greater than 40°C. If not, the heatsealing
band will not be heated up when the "START" signal is activated.
If a potentiometer is not connected or if 0VDC is applied to the set point input, the set point is
assumed to be zero. When you connect the potentiometer, please note the direction of rotation!
RES-402
10
13
15
12
U
REF
10VDC
IN 0…10VDC
2K
CW
GND
12
15
10
3
1
2
Potentiometer with
digital dial PD-3
!
