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.
* Before connection the unit it has to be checked, if the
available supply voltage corresponds with the voltage Given on the positioner label.
(e.g. 220v- or
110v-)
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
from 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.
