7

64(96)

Control Keypad

Honeywell

 

7.4.4Active 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:

7.4.4.1Fault 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

 

READY

 

READY

STOP

I/O term

STOP

I/O term

STOP

I/O term

 

 

 

 

 

nxlk19.fh8

Fault type symbol

Meaning

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.

Table 7-3. Fault types

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Honeywell NXL user manual Control Keypad, Active faults menu F4, Fault types, Fault type symbol Meaning

NXL specifications

Honeywell NXL is an advanced building management system designed to optimize the efficiency of HVAC, lighting, and security systems within commercial buildings. It incorporates cutting-edge technologies to enhance operational performance, improve energy savings, and provide a comfortable environment for occupants.

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