Active Faults Menu (F4); Fault Types - Honeywell NXL User Manual

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7.4.4 Active faults menu (F4)

The Active faults menu can be entered from the Main menu by pushing the Menu button right when
the location indication F4 is visible on the keypad display.
The memory of active faults can store the maximum of 5 faults in the order of appearance. The
display can be cleared with the Reset button and the read-out will return to the same state it was
before the fault trip. The fault remains active until it is cleared with the Reset button or with a reset
signal from the I/O terminal.
Note! Remove external Start signal before resetting the fault to prevent unintentional restart of the
drive.
Normal state,
no faults:
7.4.4.1

Fault types

In the NXL frequency converter, there are two different types of faults. These types differ from each
other on the basis of the subsequent behaviour of the drive. See Table 7-3. Fault types.
Figure 7-8. Fault display
READY
S TO P I/O term
Fault type symbol
Table 7-3. Fault types
S T OP
A This type of fault is a sign of an unusual operating
(Alarm) condition. It does not cause the drive to stop, nor does it
require any special actions. The 'A fault' remains in the
display for about 30 seconds.
F A 'F fault' is a kind of fault that makes the drive stop.
(Fault) Actions need to be taken in order to restart the drive.
Control Keypad
READY
I/O term
Meaning
Honeywell Honeywell
Honeywell Honeywell
READY
S T OP I/O term
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