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Operating the Charger Normal Operation
16
CHG-120 Instruction 11/22/04 PN: 52459:A FCI P/N:9000-0572
Table 7 shows the conditions that cause the charger LEDs to come on:
Normal Operation
The CHG-120 charges batteries at 4.5 A. When batteries are fully charged, the charger
maintains a float charge of 27.6 VDC at a trickle charge rate of less than 400 mA. While
charging the batteries, the HI and LO Charge LEDs switch on and off approximately every
20 seconds. Also, one of the 23 V, 25 V, 27 V, or Low Battery LEDs also comes on,
depending on the battery voltage.
LED
Normal Operation
AC Trouble
Disconnected
Battery
Ground Fault
Short Circuit
Faulty Battery
(or less the 21 V)
Trouble (with AC Trouble
Delay used)
Trouble (Master Trouble In
JP6 connected)
AC On
HHHHHH
Trouble
HH HHHHH
Ground Fault
H
HI Charge
II I I I
LO Charge
(Loss of AC)
IHHI IHI
27 V
IIHI II
25 V
II I II
23 V
II I II
Low Battery
II IHHII
Legend:
H
LED on.
I LED on or off, depending on battery voltage. Refer to “Normal Operation.”
Table 7 LED Status Indicators