Specifications

27Symmetra PX 48, 96, and 160 kW 400 V and 100 kW 208 V Operation
Modular Distribution Fault List
The display interface will identify the number of the power distribution module that has caused an alarm
or warning.
Display Message Meaning Corrective Action
High Module Current The threshold of the high module
current has been exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
High Subfeed Current The threshold of the high
subfeed current has been
exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
Low Module Current The threshold of the low module
current has been exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
Low Subfeed Current The threshold of the low subfeed
current has been exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
Maximum Module Current The threshold of the maximum
module current has been
exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
Maximum Subfeed Current The threshold of the maximum
subfeed current has been
exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
Minimum Module Current The threshold of the minimum
module current has been
exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
Minimum Subfeed Current The threshold of the minimum
subfeed current has been
exceeded.
Evaluate the threshold setting. If necessary, adjust
it for your situation.
Modular Distribution
Communication
Communication has been lost
with the power distribution
module.
Check the communication cables to ensure they
are properly connected. Contact APC Customer
Support.
Module Breaker Open A modular circuit breaker is
open.
Check the modular circuit breakers to see if one
has been over-loaded. Replace if necessary.
Subfeed Breaker Open A subfeed circuit breaker is
open.
Check the subfeed circuit breakers to see if one
has been over-loaded.