Wiring Diagram - ProMinent gamma G/4b Operating Instructions Manual

Page 36 of 88 pages
Installation
If in exceptional cases the mains voltage of the pump has to be connected
in parallel with an inductive load e.g. solenoid, motor or similar it must be
possible for the metering pump to be separated electrically from these
when the other loads are switched off. Therefore own contacts must be
provided for the pump.
The power supply must take place over an auxiliary contactor or a relay.
If this is not possible
- a varistor RV (order no. 71.09.12.7)
or an RC combination (0.22 µF/220 ohm, order no. 71.08.02.0)
-
must be connected in parallel to render the induced voltage harmless.
Isolation by means of a multi-pole contactor or switch, if the inductive load
P is < 20 W the pump PM and the load MV could have a common control
MV
contact.
U
RV
PM MV
U supply voltage
MV solenoid valve, motor or similar
PM ProMinent metering pump
RV Varistor

10.2.5 Wiring diagram

U
RV
MV PM
G/4b-033-D
Version 2.0