User Manual 10H52258UM60 - Rev. 3 - 01/2019
46
APM 400/600 Operation Control and Display
inverter, rectifier and bypass
ParaPowerCANCommAbnor.
Communication failure between different UPSs in parallel system. Check if any
of the UPS units are de-energized or if any of the parallel cables are not
connected correctly, then clear the fault in order to restart the UPS
Discr.BusComm.Abnor.
the discrete bus inside the rack.
confirming that the rear communication cables inside the rack are connected
reliably
ParaDiscrBusCommAbnor.
the discrete bus inside the rack.
confirming that the rear communication cables inside the rack are connected
reliably, and that the bypass module is secured properly
Ambient Overtemp.
limit threshold; this value may be set
the configuration software
The internal bypass module
System Interrupt Xfer
nsfer under conditions of bypass un
inverter phase not locked
Loss of redundant capacity
Pwr. Hardware Mismatch
The model information set
the host is inconsistent with the actual
situation
Module Overtemp.
temperature condition on the rectifier and inv
inside the module
Charger Overtemp.
temperature condition on the charger power components inside the
module
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