Fuji Electric FRENIC MEGA G2 Series - 6.3 If an Alarm Code Appears on the LED Monitor

6.3 If an Alarm Code Appears on the LED Monitor
6-4
6.3 If an Alarm Code Appears on the LED Monitor
6.3.1 Alarm code list
When an alarm is detected, check the alarm code displayed on the keypad 7-segment LED. Refer to "6.3.2
Causes, checks and measures of alarms" and take the appropriate countermeasures.
When one alarm code has more than one cause, alarm subcodes are provided to make it easy to identify the
cause. When there is only one cause, the alarm subcode is displayed as “-” and described as “-.”
Furthermore, certain types of alarms can be changed to warnings, allowing inverter operation to be continued.
(Refer to “Warning selection possible” in Table 6.3-1 below.)
Continuing operation while a warning is occurring may cause damage to devices, and therefore the
inverter should be stopped promptly from an external source.

To enter Programming mode while an alarm is occurring, press the key while holding down the key.
 See (Chapter 3 “3.4.6 Reading alarm information” ) for the method of checking the alarm codes.
Table 6.3-1 Alarm code and subcode list
Alarm code
Alarm code name
Warning selection
possible
Retry
Alarm
subcode
Alarm subcode name
Ref.
page
Ca1
to Ca5
User-defined alarm
Y
-
0
-
6-8
Cof
Current input terminals [C1],
[C2] signal line break
Y
-
1
Terminal [C1] wire break
6-8
2
Terminal [C2] wire break
3
Terminal [C1], [C2] wire break
dba
Braking transistor broken
-
-
0
-
6-8
dbH
Braking resistor overheat
Y
Y
0
-
6-9
eCf
EN circuit failure
-
-
0
-
6-9
eCl
Customizable logic failure
-
-
0
-
6-10
ef
Ground fault protection
(FRN0032G2S-2G/
FRN0018G2■-4G or above)
-
-
0
-
6-10
er1
Memory error
-
-
1-16
For investigation by manufacturer
6-10
er2
Keypad communication error
-
-
1-2
For investigation by manufacturer
6-11
er3
CPU error
-
-
1-9000
For investigation by manufacturer
6-11
er4
Option communication error
Y
-
1
Communication error at option A
6-11
2
Communication error at option B
3
Communication error at option C
10
Communication error due to multiple
causes
er5
Option error
Y
-
0
Timeout
6-11
1-10
For investigation by manufacturer