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100
PCS100 UPS-I User Manual
Event
Code Origin
Type
10
I
W
11
I
W
12
I
F
13
I
F
14
I
F
15
I
F
18
S, I
W
19
S, I
F
20
S, I
W
21
I
F
GDM Description
Event Description
DC Bus Voltage
Energy Storage voltage is low.
Low
DC Bus
The Energy Storage voltage is too
Undervoltage
low to protect the load.
Note: This fault is not recorded in
the Event Log when the PCS100
UPS-I is offline.
Zero Seq Current
Inverter module zero sequence
High
current is too high.
Zero Seq Abs
The PCS100 Module's absolute
Current High
zero sequence currents are too
high.
Sync Lost Failure
The Inverter lost synchronization
with Auxiliary Master Module.
Sync Lock T/O
The Inverter cannot synchronize
with the Auxiliary Master Module
within the timeout period.
Control Loop
Sustainable internal condition.
Timing
Internal Error
There was an internal error.
Stack Level
DSP stack has reached 75%
Warning
threshold level.
Contactor Activate
The Inverter module pre-charge
T/O
contactor has not opened within
Recommended Action
If the charging function is
operating (i.e., the DC
voltage as indicated on the
GDM is increasing) no
action is required. The
system will automatically
recover when the Energy
Storage recharges. The
PCS100 UPS-I must be
Online to enable the Float
Charger. If the Float
Charger is not working
check the LEDs on the
charger PCB
If not already online start
the PCS100 UPS-I and
confirm that Energy
Storage is charging.
Note: The Float Charger is
only enabled when the
PCS100 UPS-I is online.
Check for earth faults on
the Inverter side of the
Coupling Transformer. A
faulty Inverter module may
need to be replaced.
Check for earth faults on
the Inverter side of the
Coupling Transformer. A
faulty Inverter module may
need to be replaced.
(1) Check all
communication cables.
(2) Replace faulty module
(1) Check all
communication cables.
(2) Replace faulty module
Send the Service Log to the
factory for assessment.
If the warning persists
power down and restart
the PCS100 UPS-I.
Press Reset. If the fault is
not resolved power down
and restart PCS100 UPS-I.
Send the Service Log to the
factory for assessment. If
the warning persists power
down and restart PCS100
UPS-I.
Replace faulty module.
Replace the faulty Inverter
module.
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