Starting After Trip Reset Or Power-On - Hitachi WJ Series User Manual

Chapter 9
9.7.5

Starting after Trip Reset or Power-on

 How to restart the inverter to match the rotation speed of the motor when idling after a trip
Q
reset, or when the power is turned on?
 As the brake is applied after a trip reset, or when the power is turned on, how to start the
inverter from 0 Hz?
 Use "Restart mode after RS release [C103]" to choose either 0 Hz restart, frequency matching
A
*1
restart , or active frequency matching restart
the power is turned on.
 In case of a 0 Hz restart, there is no retry wait time setting.
 The starting method used when turning the power on, and when restarting after a trip reset
!
release, share the same settings.
 When performing the active frequency matching restart, the RUN command direction when
starting the active frequency matching operation is the same as the RUN command direction at
the time of reset input.
Code
Retry wait time after
[b003] instantaneous power
failure/undervoltage error
Restart mode after RS
[C103]
release
◼
(Example 1) Example of operation during stop,
and after turning on the power/reset
(C103=00)
Powering on
or
reset [RS]
RUN
command
Motor speed
◼ (Example 3) Example of operation when the [RS]
terminal is turned off during
operation (C103=00)
Reset [RS]
RUN
command
Motor speed
*1. For details, refer to "9.7.3 Starting with Frequency Matching".
*2. For details, refer to "9.7.4 Starting with Active Frequency Matching".
Item
Sets the wait time from when the power returns
until the restart.
Performs a 0Hz restart.
Performs the frequency matching restart
(= Active frequency matching restart at the
frequency of the previous output interruption).
Performs the active frequency matching restart.
ON
ON
ON
If [C103]=00, 0Hz restart
ON
ON
Free running
If [C103]=00, 0Hz restart
*2
as the starting method after a trip reset, or when
Description
◼
(Example 2) Example of operation during stop,
and after turning on the power/reset
(C103=01 or 02)
Powering on
or
reset [RS]
RUN
command
Motor speed
* Turn the power on or reset, and then turn the
RUN command on to turn on the inverter to
operate according to the [C103] setting.
◼ (Example 4) Example of operation when the [RS]
terminal is turned off during
operation (C103=01 or 02)
Reset [RS]
RUN
command
Motor speed
[C103]=01: Frequency matching restart
[C103]=02: Active frequency matching restart
9-7-8
Inverter Functions
0.3 to 100.0 (s)
ON
ON
ON
Free
[b003]
ON
ON
Free running
[b003]
Data
00
01 *1
*2
02