C.E. Niehoff & Co. C622 Troubleshooting Guides - Manual (Page 6)

Page 6
TG0011A
(CONT’D)
Section 3: Advanced Troubleshooting
DISPLAY STATUS
TABLE 3 – A2-604 Battery Charge Equalizer Diagnostics
All batteries are equalized. 0
1, 2, 3,
4, 5 or 6
in rotation
C
Number represents series location of battery that is at
least 0.4 V higher than the others. Number will change
frequently during operation.
Connections are in wrong position or at least one of the
wires is disconnected.
(unlit) Equalizer is off.
Pin Function
TABLE 4 – A9-069 Harness Plug
Pin Functions
A
B
C
D
E
F
G
12 V
24 V
36 V
48 V
60 V
72 V
0.0 V
Figure 4 – A9-069 Harness Connections
Figure 3 – A9-069
Harness Plug
HIGH VOLTAGE. Use extreme
caution when working around 84 V
system. Severe personal injury or death will result from contact.
DANGER
A2-604 Battery Charge Equalizer and A9-069 Harness
DESCRIPTION AND OPERATION
A2-604 Battery Charge Equalizer is attached directly to the battery
compartment.
Main diagnostic feature of A2-604 equalizer is an LED display located
on the front of the equalizer. The equalizer measures battery charge
voltage and “equalizes” battery voltage to prevent overcharge. See
Table 3 for diagnostic features and LED display explanations.
Do not allow batteries to overcharge. Battery can
explode, resulting in severe personal injury, death or
substantial property damage.
DANGER
Flashing
one number
(not “0”)
Number represents series location of battery that is
continuously overcharged. Perform battery tests to
determine problem. Replace batteries as necessary.
Battery #
1
2
3
4
5
6
N/A