4 Fault Isolation
4.14 Power System Voltage Checks
R688
HPM High-Performance Process Manager Service
387
December 2020
Honeywell
Figure 189 Power Supply Module Test Points and Indicators
ON
OFF
DC OUT
CHARGING
COMMON
A C IN
FA N TEMP
BATTERY
Figure 190 Power System AC Wiring
TB 2
HOT 2 (L1)
NEUT 2 (L2)
GND 2
TB 1
HOT 1 (L1)
NEUT 1 (L2)
GND 1
J2
PS 2
25
24
16
1
4
5
3
6
2
PS 1
25
24
16
J3
J4
Redundant Power
Supply Module
Primary Power
Supply Module
See Note
Note:
Term inal s trips TB1 and TB2 are located on the back plane in the Standard Power Sys tem.
The term inal s trips are located on the AC/DC Dis tribution Ass em bly in the AC Only Power
Sys tem .
1
2
3
1
2
3
66 43
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