2 - 40 VM600 MPS hardware manual (standard version) MAMPS-HW/E
Edition 17 - February 2018
RPS6U rack power supply (ABE04x only)
OVERVIEW OF VM600 MPS HARDWARE
2.10.10 Power supply check relay
The power supply check relay provides an indication that the +5 V, +12 V and 12 V supplies
are being correctly generated and delivered by the RPS6U rack power supply or supplies to
the VM600 system rack (ABE04x) backplane. The connector for the power supply check relay
is available at the rear of the rack, on the rear panel associated with the RPS6U power supply
or supplies.
NOTE: Refer to the VM600 system rack (ABE040 and ABE042) data sheet for further
information on the power supply check relay.
As shown in Figure 2-29, the connector for the power supply check relay has three pins that
provide access to the relay contacts, defined from left to right as COM, NO and NC.
Apart from the power supply check relay connector, the other components shown in
Figure 2-29 are mounted on the VM600 rack (ABE04x) backplane.
THE POWER SUPPLY CHECK RELAY IS SPECIFIED FOR OPERATION WITH SEPARATED
OR
SAFETY EXTRA-LOW VOLTAGE (SELV) SYSTEM VOLTAGE LEVELS:
•M
AXIMUM SWITCHING VOLTAGE OF ±30 V
RMS
/ ±42.4 V
AC(PEAK)
OR 60 V
DC
.
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