Hitachi WJ C1 Series User Manual

Chapter 9 Inverter Functions
9-7-7
Active frequency matching restart after free run release/reset release ([b088] = 02, [C103] = 02)
 To perform the active frequency matching restart after releasing a free run stop, set the "Restart
mode after FRS release [b088]" to "Active frequency matching restart (02)".
 To perform an active frequency matching restart after a reset release, set the "Restart mode after
RS release [C103]" to "Active frequency matchin restart (02)".
 When the retry wait time has elapsed after the "Free run stop [FRS] (11)" terminal turned off, the
active frequency matching restart is performed without stopping the motor.
 If an overcurrent trip occurs during the active frequency matching restart, increase the retry wait
time.
Code
Item
Description
Data
[b088]
Restart mode after FRS
release
Performs the active frequency
matching restart.
02
[b003]
Retry wait time after
instantaneous power
failure/undervoltage error
Sets the wait time from a free run
stop release or a reset release
until the restart.
0.3 to 100.0 (s)
[b028]
Active frequency matching
restart level
Sets the current limit value at the
active frequency matching restart.
(0.2 to 2.0) × rated current (A)
(ND mode)
(0.2 to 1.5) × rated current (A)
(LD mode)
[b029]
Active frequency matching
restart constant (speed)
Sets the deceleration time when
the current is increased.
0.1 to 3000.0 (s)
[b030]
Active frequency matching
restart speed selection
Starts at the frequency of the
previous power interruption.
00
Starts at the maximum frequency
setting.
01
Starts at the current command
frequency.
02
[C103]
Restart mode after RS
release
Performs the active frequency
matching restart.
02
 If restart after reset release is set to active frequency matching restart, power-up startup also
operates in active frequency mathing.
◼ (Example 6) Active frequency matching restart after free run/reset release
RUN command
[FW]
Free running
Active frequency matching restart
0
[b003]
Free run [FRS]
Reset [RS]
Motor speed
◼ (Example 7) Active frequency matching restart at power-up startup
RUN command
[FW]
Free running
Active frequency matching restart
0
[b003]
Supply voltage
Motor speed
Only the first RUN command
after power-on is subject to
restart.
!
A

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English