142
6. PROTECTIVE FUNCTIONS
6.4 Fault history and the list of fault displays
6.4
Fault history and the list of fault displays
If the displayed message does not correspond to any of the
following or if you have any other problem, contact your sales
representative.
Error message
• A message regarding operational fault and setting fault
by the operation panel is displayed. The inverter output is
not shut off.
Warning
• The inverter output is not shut off even when a warning is
displayed. However, failure to take appropriate measures
will lead to a fault.
Alarm
• The inverter output is not shut off. An Alarm (LF) signal
can also be output with a parameter setting.
Fault
• When a protective function is activated, the inverter
output is shut off and a Fault (ALM) signal is output.
• The data code is used for checking the fault detail via
communication or with
Pr.997 Fault initiation
.
Others
• The fault history and the operation status of the converter
unit are displayed. It is not a fault.
Operation panel
indication
Name
Refer
to page
Operation panel lock
Password locked
Parameter write error
to
Copy operation fault
Error
Operation panel
indication
Name
Refer
to page
Electronic thermal relay function
pre-alarm
to
Maintenance signal output
Operation panel
indication
Name
Refer
to page
Fan alarm
Operation panel
indication
Name
Data
code
Refer
to page
Overvoltage trip
32
(H20)
Converter overload trip
(electronic thermal relay
function)
48
(H30)
Heat sink overheat
64
(H40)
Instantaneous power failure
80
(H50)
Undervoltage
81
(H51)
Input phase loss
82
(H52)
External thermal relay
operation
144
(H90)
Parameter storage device
fault (control circuit board)
176
(HB0)
PU disconnection
177
(HB1)
Retry count excess
178
(HB2)
Parameter storage device
fault (main circuit board)
179
(HB3)
CPU fault
192
(HC0)
245
(HF5)
246
(HF6)
247
(HF7)
Operation panel power
supply short circuit/RS-485
terminals power supply
short circuit
193
(HC1)
24 VDC power fault
194
(HC2)
Inrush current limit circuit
fault
197
(HC5)
Communication fault
(inverter)
198
(HC6)
Internal circuit fault
202
(HCA)
253
(HFD)
Option fault
241
(HF1)
Operation panel
indication
Name
Refer
to page
Fault history
No fault history
24 V external power supply
operation
Operation panel
indication
Name
Data
code
Refer
to page