Fuji Electric FRENIC-Eco Series - Chapter 2: Mono-regulated pump control with 1 regulated pump + 1, 2, 3 or 4 auxiliary pumps; Mono-regulated Pump Control Schematics

Pump Control Quick Guide 12
Mono-regulated pump control (Mono-joker)
Necessary digital outputs Do we need the optional relay card
installed?
1 inverter driven pump +
1 auxiliary pump
(ON / OFF)
1 NO
The schematic for a mono-regulated pump control with 1 regulated pump + 1 auxiliary pump by means of
the inverter is as follows:
Please, pay attention to the pressure transducer’s wiring, connected to the inverter’s analog input C1 (4 –
20 mA).
L1
L2
L3
Y1
Y2
Y3
Y5A
Y5C
30A
30B
30C
U
V
W
REGULATED
PUMP
KM1
AUXILIARY
PUMP
MONO-REGULATED PUMP
1 REGULATED PUMP
+ 1 AUXILIARY PUMP
A1
A2
KM1
220VAC
+
CMY
PLC
CM
11
C1
-
P
E
Pressure transducer
4-20 mA (Vcc 24V)
Figure 2.1: Schematic of a mono-regulated pump control with 1 regulated pump + 1 auxiliary pump.