Honeywell
• 87
HVAC A
PPLICATION
3.7
HVAC Application - Fault tracing
When an unusual operating condition is detected by the drive control diagnostics, the drive ini-
tiates a notification visible, for example, on the keypad. The keypad will show the code, the
name and a short description of the fault or alarm.
The notifications vary in consequence and required action.
Faults
make the drive stop and re-
quire reset of the drive.
Alarms
inform of unusual operating conditions but the drive will continue
running.
Infos
may require resetting but do not affect the functioning of the drive.
For some faults you can program different responses in the application. See parameter group
Protections.
The fault can be reset with the
Reset button
on the control keypad or via the I/O terminal. The
faults are stored in the Fault history menu which can be browsed. The different fault codes you
will find in the table below.
NOTE
: When contacting distributor or factory because of a fault condition, always write down
all texts and codes on the keypad display.
3.7.1
Fault appears
When a fault appears and the drive stops examine the cause of fault, perform the actions ad-
vised here and reset the fault either
1. with a long (1 s) press on the
Reset
button on the keypad or
2. by entering the
Diagnostics
Menu (M4), entering
Reset faults
(M4.2) and selecting
Reset
faults
parameter.
3.7.2
Fault history
In menu M4.3 Fault history you find the maximum number of 40 occurred faults. On each fault
in the memory you will also find additional information, see below.
STOP
READY
Keypad
Main Menu
( 6 )
Monitor
Parameters
( 13 )
Diagnostics
( 6 )
ID:
M3.1
STOP
READY
Keypad
Reset faults
Reset faults
Help
ID:
M4.2
STOP
READY
Keypad
Diagnostics
Active faults
( 0 )
Reset faults
Fault history
( 39 )
ID:
M4.1
Diagnostics
Active faults
( 0 )
Reset faults
Fault history
( 39 )
ID:
M4.1
STOP
READY
I/O
OK
!
!
!
Fault history
External Fault
Fault old
51
891384s
External Fault
Fault old
51
871061s
Device removed
Info old
39
862537s
ID:
STOP
READY
I/O
!
Device removed
ID:
M4.3.3.2
Code
39
ID
380
State
Info old
Date
7.12.2009
Time
04:46:33
Operating time
862537s
STOP
READY
I/O
Содержание SmartVFD HVAC MR4
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