Vfd Alarm Information And Troubleshooting; Alarm Log - UNITY LAUNDRY SYSTEMS UTS40 User Manual

ALARM
11.2 VFD ALARMS
ALARM NAME
1. Motor overload
2. Motor load overweight
3. Inverter underload
4. Standby
5. Standby
6. Standby
7. Input phase loss
8. Output phase loss
9. Standby
10. Parameter saving fail
11. Standby
12. DC link undervoltage
13. C1 output protection
14. C2 output protection
15. Standby
16. Standby
17. Standby
18. Parameter check error

11.3 ALARM LOG

In the alarm interface, press [Up] and [Down] at the same time to enter the alarm log interface. It will log three new alarms
and time of occurrance.Press [Up] and [Down] to switch the alarm logs.
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Part. 14000001 Rev. 04//2021
DESCRIPTION
Motor thermal model detects the motor temperature
rise is overhigh
Motor current exceeds the load overweight detection
level, and the detection time is exceeded
Inverter output current is less than the underload pro-
tection level, and the detection time is exceeded
Lack of input phase or imbalance among three phases Refer to above table
Lack of output phase
Failure in writing parameters
DC link voltage is lowter than the threshold
Generated by comparator 1
Generated by comparator 2
Improper parameter setting
REMEDIES
Refer to above table
Refer to above table
Refer to above table
Refer to above table
Refer to above table
It is normal for this alarm information
to be displayed when the power is
off
Check the definition of comparator
1 output
Check the definition of comparator
2 output
Correct parameter setting or restore
factory setting.
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