Nx Networks NX series user manual 5886, Active faults menu M4, Fault types

7

58(86) Control keypad

7.3.4Active 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:

READY

I/Oterm

Active faults

F0

7.3.4.1Fault 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.

				STOP	FAULT
				I/Oterm
				Operation hours
				34:21:05
		STOP	FAULT	STOP	FAULT
		I/Oterm		I/Oterm
Fault	11 Output phase			Operations days
	F	T1 "T13		17
type
symbol

Figure 7-7. Fault display