Wiring Configuration For A Cascade Controller - Danfoss VLT AQUA Drive FC 202 Design Manual

Application Examples
12.11 Wiring Configuration for a Cascade
Controller
Illustration 12.6 shows an example with the built-in basic cascade controller with 1 variable-speed pump (lead) and 2 fixed-
speed pumps, a 4–20 mA transmitter, and system safety interlock.
Power Card
MOTOR MAINS
96 97 98 91 92 93
PE
U V W
L1 L2 L3
L1
L2
L3
PE
M
Illustration 12.6 Cascade Controller Wiring Diagram
MG22B102
Design Guide
Control Card
01 02 03 04 05 06 12
From Motor Control Circuitry
N
M
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13 18 19 27 29 32 33
System System
Start/ Safety
Stop Interlock
M
20 39 42 50 53 54 55
Pressure
Transmitter
4-20 mA,
P
24 V dc
12 12
117