Kohler PowerWAVE 3000/P1

30
3. Remove units from the parallel system
Check that Mains and Bypass Supplies are both healthy
COMPLETE THE FOLLOWING ON UNIT TO BE REMOVED:
1) Touch “CONTROL” ➔ “Exit Parallel” and select “Yes” to turn of the UPS. If the system has available
redundancy the UPS will disconnect its output and the other UPS units will continue to feed the load.
If there is no redundancy within the UPS units, the load will transfer to bypass.
2) Turn off the output breaker of this unit, and then turn off the input and bypass breaker of this unit.
3) After UPS shuts down, you can turn off the battery breaker and remove the parallel and share
current cables. Then remove the unit from the parallel system.
NOTE1: IF “ON/OFF UPS” is selected all UPS will transfer to bypass.
NOTE2: If the bypass is abnormal and there is no redundancy available removing a UPS from parallel
could cause disruption to the load.
NOTE3: Make sure the bypass setting is enabled in each UPS
Warning: (Only for the parallel system)
● Before turning on the parallel system to activate inverter, make sure that all units maintenance
bypass switches are in the same position.
● When parallel system is turned on, please do not operate the maintenance switch of any unit if the
system is operating in capacity and not redundancy.
● Please Do NOT enable the ECO mode in parallel system.
3-6. Fault Code
Fault
code
Fault event
Icon
Fault
code
Fault event
Icon
01
Bus start failure
None
43
Overload
None
02
Bus over
None
46
Incorrect UPS setting
None
03
Bus under
None
47
MCU communication failure
None
04
Bus unbalance
None
48
Two DSP firmware versions are
incompatible in parallel system.
None
06
Converter over current
None
60
Bypass phase short circuited
None
11
Inverter soft start failure
None
61
Bypass SCR short circuited
None
12
High inverter voltage
None
62
Bypass SCR open circuited
None
14
Inverter A output(line to
neutral) short circuited
None
63
Voltage waveform abnormal in A
phase
None
15
Inverter B output(line to
neutral) short circuited
None
64
Voltage waveform abnormal in B
phase
None
16
Inverter C output(line to
neutral) short circuited
None
65
Voltage waveform abnormal in C
phase
None
1A
Inverter A negative power fault
None
66
Inverter current detect abnormal
None
1B
Inverter B negative power fault
None
67
Bypass O/P short circuited
None
1C
Inverter C negative power fault
None
68
Bypass O/P line to line short
circuited
None
21
Battery SCR short circuited
None
69
Inverter SCR short circuited
None
23
Inverter relay circuited open
None
6C
BUS voltage drops too fast
None
24
Inverter relay short circuited
None
6D
Current error value detect
None
25
Line wiring fault
None
6E
SPS power error
None
31
Parallel communication failure
None
6F
Battery polarity reverse
None
32
The host signal failure
None
71
PFC IGBT over-current in A phase
None
33
Synchronous signal failure
None
72
PFC IGBT over-current in B phase
None