Hitachi WJ Series User Manual page 486

Appendix
No. Function
Errors that are judged as "Major failure [MJA]" are different between WJ200 series and WJ-C1.
Errors checked with ✓ in the table below are judged as a serious error and [MJA] is
output.
14 Major failure
The behavior at the restart with frequency matching is different between WJ200 series
and WJ-C1. As shown in the figure below, when restart with frequency matching is
selected, WJ-C1 restarts with active frequency matching from the shut-off frequency.
Power supply
Output current
Frequency
Motor speed
15 matching
restart
Restart by detecting the motor
speed.
* Related parameter (b001, b008, b088, C103)
The behavior when "Overload restriction mode selection ([b021]/[b221]/[b024])" is "Enable
during accel. and constant speed (accel. during regeneration)" is different between WJ200
series and WJ-C1. WJ200 increases the output frequency during regeneration also at
deceleration, but WJ-C1 does not increase the output frequency during regeneration at
deceleration.
Overload restriction
active level
Overload
b022/b222, b025
16
restriction
Output current
Maximum frequency
A004/A204
Output frequency
Change from WJ200 to WJ-C1
No. Error code
1 E08.* Memory error
2 E10.* Current detector error
3 E11.* CPU error
4 E14.* Ground fault
5 E22.* CPU communication error
6 E25.* Main circuit error
7 E30.* Driver error
WJ200
Restart with
Free run
frequency
matching
WJ200
Accel./decel time set in
overload restriction action
time
b023/b223/b026
Name
Power supply
Output current
Output frequency
Motor speed
Free run
Restart with active frequency matching
from the shut-off frequency without
detecting the motor speed.
Overload restriction
active level
b022/b222, b025
Output current
Maximum frequency
A004/A204
Output frequency
A-1-17
WJ200 WJ-C1
✓ ✓
✓
✓ ✓
✓ ✓
✓
✓
- ✓
WJ-C1
Restart with active
frequency matching from
the shut-off frequency
WJ-C1
Decel. time set in overload
restriction action time
b023/b223/b026
Page
9-11-2
9-7-3
9-9-1