Vacon NX User Manual page 118

vacon • 116
7.3.4.1 Fault types
In the NX frequency converter, there are four different types of faults. These types differ from each
other on the basis of the subsequent behaviour of the drive. See Table 46.
Fault type symbol
Fault type
symbol
A
(Alarm)
F
(Fault)
AR
(Fault Autoreset)
FT
(Fault Trip)
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7
STOP
I /Oterm
11 Output phase
T13
F T1
Figure 66. Fault display
Table 46. Fault types
This type of fault is a sign of an unusual operating 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.
An 'F fault' is a kind of fault that makes the drive stop. Actions
need to be taken in order to restart the drive.
If an 'AR fault' occurs the drive will also stop immediately. The
fault is reset automatically and the drive tries to restart the
motor. Finally, if the restart is not successful, a fault trip (FT, see
below) occurs.
If the drive is unable to restart the motor after an AR fault an FT
fault occurs. The effect of the 'FT fault' is basically the same as
that of the F fault: the drive is stopped.
I/Ote rm
Operation hours
34:21:05
FAULT STOP
I /Oterm
Operations days
17
Meaning
CONTROL KEYPAD
FAULT
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