Gtec ZY120 - 10 Trouble Shooting; Checking Ups Status; Adjust the Factors Caused the Problem

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ZY120 6-20kVA (11) User Manual EN rev.04.doc
10. TROUBLE SHOOTING
This section describes checking the UPS’s status. This section also indicates various UPS
symptoms a user may encounter and provides a troubleshooting guide in the event the UPS develops
a problem. Use the following information to determine whether external factors caused the problem
and how to remedy the situation.
10.1 Checking UPS status
It recommended that checking the UPS operation status every six months.
⚫ Check whether the UPS is faulty: Is the Fault Indicator on? Is the UPS sounding an
alarm?
⚫ Check whether the UPS is operating in Bypass mode. Normally, the UPS operates in
Normal Mode. If it is operating in Bypass Mode, stop and contact your local
representative, or Channel Support.
⚫ Check whether the battery is discharging. When the utility input is normal, the battery
should not discharge. If the UPS is operating in Battery Mode, stop and contact your local
representative, or Channel Support.
10.2 Adjust the factors caused the problem
When the fault indicator is on, press button to get S-code. So,S1 indicates status and
A0-A5 indicates the exact fault of UPS, S-code list is shown as follow:
Description of S-Code
Seq.
Items
0
1
Solution
1
A0
1
Synchronous Fault
Sync
Not
sync.
Check whether bypass
voltage/frequency is normal
2
2
Main Input Fault
OK
Fault
Check whether input is normal
3
3
REC Fault
OK
Fault
REC over temperature, bus over
voltage, input current unbalance,
soft start fail
4
4
INV Fault
OK
Fault
INV over temperature, INV IGBT
broken, INV relay fault
5
5
Reserved
6
6
Reserved
7
7
Reserved