Pulsafeeder MPC - Manual (Page 48)

Digital In #2 J11 pins 2-3 User to provide dry-contact input *
*All digital inputs require a dry contact input
(maximum of 2K Ohm contact resistance to register as
“active”). Do not apply power to these terminals.
* Digital input functions:
1. Remote on/off control of metering pump
2. Level input from supply tank
3. Leak detection of the metering pump
4. Flow detection, with use of external flow switch
accessory
Control Outputs Wiring Specification / Description
Analog Out #1
J23 pins 5-
6
4-20mA output for pump flow indication
Max voltage out 12 Volts; Max current out 30mA;
Max load resistance 300 Ohm
Internally protected with resetable fuse
Digital Out #1 J23 pins 1-
4
Transistor-based output, various functions *
Digital Out #2 J23 pins 2-
4
Transistor-based output, various functions *
Digital Out #3 J23 pins 3-
4
Transistor-based output, various functions *
All digital outputs maximum 40 VDC, maximum 500
mA
NOTE: requires external power source
* Digital output functions:
1. Triggering an external relay due to a fault condition
2. Auto/Manual status
3. On/Off status
4. Pulse output – Indication each time the pump strokes
5. Leak detection status indication
6. Tank level status indication
Calibration: Controller includes an on board program for signal and flow
calibration.
Input Voltage: 115 (105-125 acceptable range) or 230 (208 – 240 acceptable
range) VAC
Note: factory configured only for correct input voltage range
(specified at time of purchase) Single phase input only 50 or 60
Hz.
Input frequency range 48 Hz to 62 Hz
Motor Req: Commercially available motor supplied by the manufacturer of
the pump controller.