Revision 2016/03, 6ELE, V1.14
4-93
Accessories for Multi-Pump under Alternative Operation
Wiring method when the system is under multi-pump operation:
1. Use a RJ45 cable (8 pin, internet cable) without an adaptor. Simply connect master/slave communication port. If
there are more than two pumps, use MKE-HUB01 to connect RJ45
RS485
2. Use a RJ11(6pin) cable with an adaptor to connect master/ slave.
4-port communication breakout box
RJ485 RJ11
4-port communication breakout box
Example:
Set Pr10.35=1: Fixed time circulation (alternative operation of multi-pump at constant pressure)
There are 4 pumps under alternative operation to increase the system’s life span.
The water pressure remains at 3kg in a constant pressure water supply system
As shown by Image below:
4~20mA Pressure Transmitter
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