Honeywell
Fault Tracing
27
6
6. SMARTVFD COMPACTFAULT TRACING
Note:
The fault codes listed in this chapter are visible if the Application Interface has
a display, like e.g. in API FULL or API LIMITED or if a personal computer has been
connected to the drive.
When a fault is detected by the frequency converter control electronics, the drive is
stopped and the symbol F together with the ordinal number of the fault and the fault
code appear on the display in the following format, e.g:
The fault can be reset by pressing the Stop button on the control keypad or via the I/
O terminal or fieldbus. The faults with time labels are stored in the Fault history menu
which can be browsed. The different fault codes, their causes and correcting actions
are presented in the table below.
Fault
code
Fault name
Possible cause
Correcting actions
1
Overcurrent
Frequency converter has
detected too high a current
(>4*I
N
) in the motor cable:
• Sudden heavy load increase
• Short circuit in motor cables
• Unsuitable motor
Check loading.
Check motor size.
Check cables.
2
Overvoltage
The DC-link voltage has
exceeded the internal safety
limit:
• Too short a deceleration
time
• High overvoltage spikes in
mains
Increase the deceleration
time (P.4.3).
3
Earth fault
Current measurement has
detected extra leakage current
at start:
• Insulation failure in cables or
motor
Check motor cables and
motor.
Table 6.1 : Fault codes
F1 02
Fault code (02 = overvoltage)
Fault ordinal number (F1 = latest fault)
