Nx Networks NX series - Manual (Page 58)

58(86) Control keypad
7
7.3.4 Active faults menu (M4)
The Active faults menu can be entered from the Main menu by pushing the right arrow menu
button when the location indication M4 is visible on the first line of the keypad display.
When a fault brings the frequency converter to a stop, the location indication F1, the fault code, a
short description of the fault and the fault type symbol (see Chapter 7.3.4.1) will appear on the
display. In addition, the indication FAULT or ALARM (see Figure 7-1 or Chapter 7.1.1) is displayed
and, in case of a FAULT, the
red led on the keypad starts to blink. If several faults occur
simultaneously, the list of active faults can be browsed with the Browser buttons .
The memory of active faults can store the maximum of 10 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:
7.3.4.1 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 7-2.
Figure 7-7. Fault display
Active faults
F0
READY
I/Oterm
F T1 "
T13
STOP FAULT
I/O term
STOP
I/O term
FAULT
34:21:05
ST OP
I/Oterm
FAULT
17
11 Output phase Operations days
Operation hours
Fault
type
symbol