APPLICATION
The positioner controller PEPC - 10 is used in connection with a pressure transmitter potentiometer and Servo motor drive feedback potentiometer to modulate the firing with respect to the boiler Set pressure. Up to three positioners controllers can be controlled from one pressure transmitter potentiometer .
INSTALLATION
- The positioner controller can be mounted in any position in a dry location, e.g control panel.
- The version for line voltage (e.g. 220v- or 110v-) has to be protected against accidental touching of live parts
- For panel or wall mounting the controller has to be built into the housing.
OPERATION
The positioner controller PEPC 10 is a P - controller. The position of the pressure transmitter potentiometer GW (0% - 100%) is compared with the position of the burner feedback potentiometer R W (100% - 0%) built Into the servo motor drive. When a deviation exists in the transmitter potentiometer the positioner controller. Give the corresponding control signals to the motor drive until the position balance is established. Transmitter and feedback potentiometers with a nominal value form 130 to 2000 ohms can be used.
OPERATION
- Switch on installation
- Run transmitter drive in to one limit position (0%) i.e. connect manual potentiometer to 11,13, & 14 of PEPC - 10 Equal to transmitter potentiometer value.
- Check if servo motor drive runs into the other limit position. (100%) or High Flame.
- Run transmitter drives into the other limit position (100%) and cheek the Servo motor drive run to Low Flame.