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MaxiFit11E/13E/33E/35E/37E/55E/75E/77E Expandable Power Systems Installation Guide
Wiring:
Use 18 AWG or larger for all low voltage power connections.
Note:
Take care to keep power-limited circuits separate from non power-limited wiring (115VAC, Battery).
Maintenance:
Unit should be tested at least once a year for the proper operation as follows:
Output Voltage Test:
Under normal load conditions the DC output voltage should be checked
for proper voltage level
(Power Supply Board Stand-by Battery Specifications, pg. 7).
Battery Test:
Under normal load conditions check that the battery is fully charged, check
specified voltage at the battery terminals and at the board terminals marked
[+ BAT –] to ensure that there is no break in the battery connection wires.
Note:
AL400ULXB2, AL600ULXB and AL1012ULXB Power Supply Board maximum charge current is 0.7A.
AL1024ULXB2
Power Supply Board maximum charge current is 3.6A.
Expected battery life is 5 years, however it is recommended to change batteries within 4 years or less if necessary.
Fig. 1 -
ULXB Board Configuration
Power Supply Board Output Voltage Settings:
+ DC
---
BAT FAIL NC C NO NC C NO
+ BAT
---
AC FAIL
DC
AC
BAT
L
G
N
5A 250V
OFF --- 24V
ON --- 12V
1a
1b
1c***
1d**
1e*
ON
Fig. 2
+ DC
---
SW1
OFF - 24V
ON - 12V
ON
Fig. 2a
ON
OFF - 24V
ON - 12V
