5
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System Operation
Page 14
PowerShift User Manual Version B
Circuit
1, 2 or 3
LED
Module
“X” LED
Alarm
Condition
(GUI & Relay)
Description
Green
Blink
Solid
Green
None
(<30 sec)
-Or-
Major
(>60 sec)
Circuit is performing line resistance measurement
Nominal condition (no alarm) – 30 second duration
-
Circuit is measuring the line resistance, it takes ~30 seconds to complete
-
Occurs whenever circuit input power is applied or is cycled off/on
-
Remote is not powered during this time
-
After ~30 seconds the circuit LED should change to solid green
-
No alarm is raised during or after if the measurement is successful
Alarm condition (Major) – line resistance measurement unsuccessful
-
If circuit LED continues to blink green after 60 seconds this indicates the
module could not successfully measure the line resistance of the affected
circuit
-
A major alarm condition is raised
-
PowerShift will use a default line resistance (0.15 Ohms) in order to
provide voltage to the radio so that it can operate
Possible cause – Capacitive Jumper disconnected or failed
-
If there is no power to the radio there may be a break in the trunk cable
or a failure in the capacitive jumper; perform a continuity check
-
If there is power to the radio then the capacitive jumper may have failed
in a closed condition
