Johnson Controls P2000 Hardware Installation page 34

CKM-CE75-E1M
24-10707-112 Rev. D
Possible cause
AC FLT LED lit and AC FLT relay indicating a trouble condition
Primary AC voltage
low or missing
120/230 jumper (JP1)
set incorrectly
Internal problem
DC1 LED extinguished
Blown DC1 fuse
Power supply shut
down
DC2 LED extinguished
Blown DC2 fuse
Output disabled due
to FAI
REV BAT LED lit
Battery connection
reversed
AC ON LED extinguished
Missing or extremely
low AC input
Blown AC fuse
Suggested Solution
Verify that the AC input voltage is 120 V or 230 V (±15%) with a
meter.
For safety, the green AC ON LED indicates the presence of any
AC voltage on the input, but not the integrity of the voltage.
Verify that JP1 is set correctly: intact for 120 V input, cut for 230 V
input.
Contact the manufacturer.
Check the fuse.
Verify DC output voltage, AC power, and backup battery voltage
(if used)
Check output load integrity and current draw.
If the power supply detects ten output faults within one minute,
the supply shuts down, transfers to battery backup (if available),
and generates a fault condition. Cycle AC power to reset the
supply after determining the cause of the output fault condition.
Check the fuse.
Verify the integrity of the output wiring and powered devices
before replacing any ruptured fuses. Replace fuses only with the
same type and rating.
If the DC2 fuse is in the DC2+ NC fuse holder, the DC2 output will
be disabled upon receipt of an FAI input, causing the DC2 LED to
extinguish.
If the DC2 fuse is in the DC2+ NO fuse holder, the DC2 output will
be disabled and the DC2 LED will be extinguished until receipt of
an FAI input.
Check the polarity of the battery connections at both ends of the
battery harness.
Verify that the AC input voltage is 120 V or 230 V (±15%) with a
meter.
The CKM-FPO power supply's AC input fuse is non-replaceable,
as rupture of this fuse indicates a major malfunction within the
CKM-FPO supply. Contact Johnson Controls.
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Troubleshooting