ABB PCS100 UPS-I, User Manual

Page: 108 / 144

108 PCS100 UPS-I User Manual
Code Origin Event
Type
GDM Description Event Description Recommended Action
146 S W Energy Storage
Warning
MkI Energy Storage Enclosures.
(1) There is a fault with the Float
Charger.
(2) The Energy Storage Enclosure
is too hot.
(3) A battery/Ultracapacitor is
over voltage.
(4) The Float Charger’s circuit
breaker (in the Coupling
Transformer Enclosure) is
tripped.
Check the LEDs on the
float charger PCB to
narrow down the cause of
the warning problem (see
the Service guide
document number
2UCD120000E409). If the
Energy Storage Enclosure
is hot check that the fans
are operating. If the
battery/Ultracapacitor is
over voltage investigate
the causes of the voltage
anomaly. If the circuit
breaker has tripped
investigate the cause of
the trip.
148 S W DC Bus High - CB
Tripped
The DC Bus voltage is too high
which causes the Coupling
Transformer’s circuit breaker to
trip.
Check the integrity of the
transformer and the
primary transformer
cables.
149 S W Tx Zero Seq
Current High
The zero-sequence current (or
neutral current) in the Coupling
Transformer is high. The zero-
sequence current is measured by
summing the 3 phase currents
measured by the CTs in the
Coupling Transformer primary.
(1) Check the load current
imbalance.
(2) Check the source
voltage imbalance.
(3) Check the current
measurements are
accurate.
150 S F Tx Zero Seq I Too
High
There are large zero sequence
currents through the Coupling
Transformer which could cause
overheating of the transformer.
This fault will trip the Coupling
Transformer’s circuit breaker. The
zero sequence current is
measured by summing the 3
phase currents measured by the
CTs in the Coupling Transformer
primary.
Reduce the load or utility
imbalance then reset
(close) the circuit breaker.
The Coupling Transformer
current measuring circuit
may need checking.
173 S F Output Volt Too
Low
Output RMS line to line voltage is
low for too long
Check for external faults in
the load
191 S W Reduced System
Capacity
There is a problem with one or
more of the Inverter modules or a
module has a DC voltage less than
650 Vdc.
Check Event Log. Replace
faulty module.
196 S W DC Breaker
Tripped
For Battery and MkI Energy
Storage Enclosures. A main DC
circuit breaker has been tripped.
Note: If the PCS100 UPS-I has
additional healthy Energy Storage
Enclosures it can still operate but
at reduced capacity. The DC
circuit breaker cannot be tripped
by the PCS100 UPS-I software.
Check the cabling of the
Energy Storage Enclosures
for short circuits to earth
or other faults.
200 S F Redundancy trip More than 50% of the Inverters Replace the faulty Inverter