Hitachi WJ C1 Series User Manual

Appendix
A-1-17
No.
Function
Change from WJ200 to WJ-C1
Page
14
Major failure
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.
No.
Error code
Name
WJ200
WJ-C1
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
-
✓
9-11-2
15
Frequency
matching
restart
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.
WJ200
WJ-C1
Power supply
Free run
Output current
Motor speed
Restart with
frequency
matching
Restart by detecting the motor
speed.
Power supply
Free run
Output current
Motor speed
Output frequency
Restart with active
frequency matching from
the shut-off frequency
Restart with active frequency matching
from the shut-off frequency without
detecting the motor speed.
* Related parameter (b001, b008, b088, C103)
9-7-3
16
Overload
restriction
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.
WJ200
WJ-C1
Output frequency
Overload restriction
active level
b022/b222, b025
Output current
Accel./decel time set in
overload restriction action
time
b023/b223/b026
Maximum frequency
A004/A204
Output frequency
Overload restriction
active level
b022/b222, b025
Output current
Decel. time set in overload
restriction action time
b023/b223/b026
Maximum frequency
A004/A204
9-9-1

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English