6. Control Functions and Parameter Settings
6-65
C21-0
Number of retries
C21-1
Retry wait time
Retry is a function that performs its own fault reset and restarts with pick-up. Is possible to
set the number of retries, and the wait time (t
RW
). An IO-4 fault will be output if the operation
is not possible after the programmed re-tries.
The retry is effective against power module (
), overcurrent (
), overvoltage
(
)
Note 3)
, overload (
), overheat (
), and ground fault (
) errors.
M otor sp ee d
Tim e
W a iting tim e a fter trip b y O ve rcu rre nt,
P ick-u p a n d re try
P ick-u p a chieved a nd re try finish ed
t
RW
O C
O
u
tp
u
t f
req
ue
nc
y
O C
O C
C 2 1-1
n = 1
n = 2
n = 3
In te rna l
FLT
2
2
1
1
3
3
4
4
(Note 1)
If C21-0=0, retry will not function.
(Note 2)
The FA-FC relay output will stay open during retry, but will not function.
(Note 3)
OVT retry may not function correctly if the DC voltage drop is slow.
(Note 4)
If the run command turns OFF during retry, the retry will be cancelled, and the
FA-FC relay contact will turn ON.
(Note 5)
The pickup operation is not carried out during vector control with sensor (C30-0
= 4).
CAUTION
When a fault occurs on an extremely rare case, this function automatically resets the fault and restarts the
operation.
If the fault occurs frequently, the inverter could be damaged, so first remove the cause of the fault.
