Power Supply Modules
(Cat. No. 1771-P4S, -P6S, -P6S1)
Installation Data
6
Table C
Interpreting the P/S ACTIVE Indicator
If the indicator
Is:
Then:
On
The power supply (and any supply connected through a paralleling cable) is
operating normally. However, it could still have a poor connection to the
backplane.
Off
The supply has detected one of the following conditions:
G
dc overvoltage (the supply shuts down)
G
dc undervoltage (the supply shuts down)
G
dc overcurrent (the supply shuts down)
G
power switch turned off (the supply is turned off)
G
ac undervoltage
G
the paralleled supply is shut down
With ac undervoltage or a paralleled supply shut down, the supply will still
attempt to generate the output. When dc limits are exceeded, the supply shuts
down until you turn power off (for 5 seconds minimum) and then back on.
If you have a single power supply installed in an I/O chassis and its P/S
ACTIVE indicator is off, verify the ground connection to the supply; then
follow this troubleshooting flow chart.
Troubleshooting a Single
Power Supply
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com