233
(3) Pr. 502 "stop mode selection at communication error"
You can select inverter operation to be performed in the occurrence of a communication
line fault or an option error.
(About the settings)
Parameter
Number
Setting Range
Minimum Setting
Increment
Factory Setting
502
0, 1, 2
1
0
Fault
Pr. 502
Setting
At Occurrence of Fault
Error Recognition after Elapse
of Pr. 500 Time
At Resolution of Fault
Operating
status
Indi-
cation
Alarm
output
Operating
status
Indi-
cation
Alarm
output
Operating
status
Indi-
cation
Alarm
output
C
o
m
m
u
n
ic
a
ti
o
n
lin
e
0
Continued
No
Not
provided
Coasting
to stop
E.OPT lit
Provided
Stop held
E.OPT
kept lit
Provided
1
Continued
No
Not
provided
Decele-
ration to
stop
E.OPT lit
after stop
Provided
after stop
Stop held
E.OPT
kept lit
Provided
2
Continued
No
Not
provided
Decele-
ration to
stop
E.OPT lit
after stop
Not
provided
Restart
E.OPT
kept lit
Not
provided
Op
ti
o
n
e
rr
o
r
0
Coasting
to stop
E.3 lit
Provided
Coasting
to stop
E.3 lit
Provided
Stop held E.3 kept lit Provided
1
Decele-
ration to
stop
E.3 lit after
stop
Provided
after stop
Decele-
ration to
stop
E.3 lit after
stop
Provided
after stop
Stop held E.3 kept lit Provided
2
Decele-
ration to
stop
E.3 lit after
stop
Provided
after stop
Decele-
ration to
stop
E.3 lit after
stop
Provided
after stop
Stop held E.3 kept lit Provided
Note: 1. A communication error [E.OPT (fault data: A0H)] is a fault on the
communication line, and a communication error [E. 3 (fault data: F3H)] is a
communication error inside the inverter.
2. The alarm output is the ABC contact output or alarm bit output.
3. If the Pr. 502 setting is 1 or 2, the deceleration time is the ordinary
deceleration time setting (Pr. 8, Pr. 44, Pr. 45).
4. The acceleration time at restart is the ordinary acceleration time setting (Pr.
7, Pr. 44).
5. If the Pr. 502 setting is 2, the operation command/speed command at restart
follows the command before occurrence of a fault.
6. For the setting of alarm output, the fault definition is stored in the alarm
history.(Write to the alarm history is performed when the alarm output is
provided.)If the alarm output is not provided, the fault definition overwrites
the alarm indication of the alarm history temporarily but is not stored.After
the fault is cleared, the alarm indication is reset and returns to the ordinary
monitor and the alarm history returns to the original alarm history.
7. When a communication line fault, which occurred at the Pr. 502 setting of 2,
is cleared during deceleration, acceleration restarts at that point.
(Acceleration does not restart at occurrence of a Option fault.)
