Zener MSC-3 Instruction Manual page 68

MSC-3 Start Up
+24VDC
by
customer
IMPORTANT!
To avoid MSC-3 relay contact damage, please ensure the contactor coil ratings do not exceed 2A
@ 250Vac.
With 24Vdc applied, the MSC-3 remains idle until it receives a forward or reverse command. The AUX_
PWR relay function will then operate the input line contactor charging the MSC-3. When charging is
complete the motor is run as required. The AUX_PWR relay will open if:
• The drive experiences a trip,
• The wiring from "+5V" to "EN" of the main terminal strip is opened.
• The motor is run with zero speed for 10 seconds
CAUTION
Any use of the Essential Services Override feature should be arranged to comply
with all local rules and regulations concerning the particular application.
Key configuration parameters are:
• E06 LC CONTROL (function activation)
• > LC CONTROL (as a relay function to control the external line contactor)
54
Line Contactor
MSC-3
Low Voltage
Control Supply
+5V stop FWD
Latch
RUN/STOP
IM00120 IM00120
Mains
Supply
L1 L2 L3
LC CONTROL Relay
EN
M1 M2 M3
Motor
Contactor
Supply