ABB PCS100 UPS-I User Manual page 106

106 PCS100 UPS-I User Manual
Code Origin Event
Type
109 I F
123 S F
124 S F
125 S Info
126 S Info
127 S Info
128 S Info
129 S Info
GDM Description Event Description
Protection Module cannot communicate with
Message Error Auxiliary Master Module.
SCR Failed to The current through the SCRs had
Switch Off not reduced to zero after the
SCRs were commanded to switch
off.
Input-Output A SCR input and output voltage
Voltage Mismatch mismatch is detected. This fault
is triggered if these voltages
differ more than the threshold
while the SCR is on.
System Stop This message indicates a state
change to "Bypass" but it does
not indicate what caused the
state change. Events 210 to 212
indicate the source of the state
change.
System Starting The PCS100 UPS-I has received a
start command and the PCS100
UPS-I status changed to Starting.
Normally the PCS100 UPS-I will
quickly go to "Online". This
message indicates a state change
to "Starting" but it does not
indicate what caused the state
change. Events 210 to 212 indicate
the source of the state change.
Discharge - rms The load has transferred to the
PCS100 UPS-I Energy Storage due
to the utility RMS voltage being
out of limits.
Transfer Back The PCS100 UPS-I is
synchronizing with the utility
before it connects.
Online The PCS100 UPS-I is ready to take
over the load in the event of a
Recommended Action
Check VCAN cables and
connections
(1) Check the SCR disable
signal is being received
from the Auxiliary Master
Module as indicated by
LED 1 in the Utility
Disconnect by manually
disabling the SCRs using
parameter 919 while
offline.
(2) Replace faulty SCR
(1) Check the input/output
voltage sensing and
voltage sense fuses in the
Utility Disconnect.
(2) Check the LEDs on the
SCR firing board to narrow
down the source of the
problem (see the Service
guide document number
2UCD120000E409).
(3) Check and manually
reset the hardware severe-
over-temperature sensor
(120°C) located on the top
SCR heatsink.
(4) Check SCR gate wiring.
Check SCRs. Replace SCR
firing board.
Info only
Info only
Info only
Info only
Info only