Fault Tracing; A Fault Comes Into View - Honeywell HVAC400x Applications Manual

11

FAULT TRACING

When the control diagnostics of the HVAC drive find an unusual condition in the operation of the drive, the drive
shows a notification about it. You can see the notification on the display of the control panel. The display shows the
code, the name and a short description of the fault or alarm.
The source info tells you the source of the fault, what caused it, where it occurred, and other data.
There are three different types of notification.
• An info does not have an effect the operation of the drive. You must reset the info.
• An alarm informs you of unusual operation on the drive. It does not stop the drive. You must reset the alarm.
• A fault stops the drive. You must reset the drive and find a solution to the problem.
You can program different responses for some faults in the application. See more in
Reset the fault with the Reset button on the keypad, or through the I/O terminal, fieldbus or the PC tool. The faults
stay in the Fault history where you can go and examine them. See the different fault codes in
Before you contact the distributor or the factory because of unusual operation, prepare some data. Write down all
the texts on the display, the fault code, the fault ID, the source info, the Active Faults list and the Fault History.
11.1

A Fault Comes into View

When the drive shows a fault and stops, examine the cause of fault, and reset the fault.
There are two procedures to reset a fault: with the Reset button and with a parameter.
RESETTING WITH THE RESET BUTTON
1. Push the Reset button on the keypad for 2 seconds.
RESETTING WITH A PARAMETER WITH THE HMI
1. Go to the Diagnostics Menu.
2. Go to the submenu Reset faults.
HVAC400X – APPLICATION MANUAL
STOP
STOP
159
5.9 Group 3.9: Protections.
11.3 Fault Codes.
READY
Main Menu
ID: M4
Monitor
( 5 )
Parameters
( 12 )
Diagnostics
( 6 )
READY
Diagnostics
ID: M4.1
Active faults
( 0 )
Reset faults
Fault history
( 39 )
EN2B-0417GE51 R0719
I/O
I/O