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Chapter 11. Monitoring
11.3 Monitoring fault condition
z Monitoring fault display
Group
LED
Display
Parameter Name
Set
value
Min/Max
range
Factory
default
Unit
Drive
group
nOn [Fault Display] -
The kind of fault occurred during operation is displayed in nOn.
Up to 3 kinds of faults can be monitored.
This parameter gives information on fault types and the operating status at the time of
the fault. Refer to 1.6 How to monitor operation.
Refer to Page 13-1 for various fault types.
Frequency
Current
Fault during Accel
Fault during Decel
Fault types
Accel/Decel
Information
Fault during constant run
z Fault History Monitoring
Group
LED
Display
Parameter Name
Set
value
Min/Max
range
Factory
default
Unit
H 1 [Fault history 1] -
~ ~
H 5 [Fault history 5]
I/O group
H 6
[Reset fault history]
- 0/1 0
H 1 ~ H 5: Up to 5 faults information is stored.
H 6: Previous fault information stored in the code H1 thru H5 is all cleared.
When a fault occurs during operation, it can be monitored in the nOn.
When the fault condition is reset via the STOP/RST key on the keypad or multi-
function terminal, information displayed in the nOn will be moved to the H1. In
addition, the previous fault info stored in H1 will be automatically moved to H2.
Therefore, the updated fault info will be stored in the H1.
When more than 1 fault occurred at the same time, up to 3 types of faults will be
stored in one code.
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