Hitachi SJ Series, User Manual

Page: 289 / 786

12-11-2
Chapter 12 Inverter Functions
12.11.2 Set Response Gain of Motor
Control
• We want to switch the response of motor control by
situation.
• We want to change the speed response by speed.
• When winding, we want to change the response
gain by speed that changes by diameter.
• We want to set the gain based on the speed
because inertia changes by speed.
• This switches control gain (ASR gain) of motor
control.
• In the control gain switch function, two types of PI
gains are switched and applied by turning ON and
OFF the input terminal function [CAS].
When [CAS] terminal switch [HA120] = 00
• If switching is done by the [PPI] terminal when the
control gain mapping function is used, [HA130] of
gain mapping P control P gain 2 will be applied.
• In the case of using this function, sensorless vector
control, sensorless vector control in the zero speed
area, and sensor vector control need to be selected
in the [AA121] control method.
• In the case of using this function in SM (PMM)
control, P gain is adopted.
• In the gain mapping function to be switched by
setting, setting multiple control gains corresponding
to the speed can change the gain with the speed
change.
• The gains to be applied by switching of the [CAS]
terminal are as follows.
Terminal
function
[PPI]OFF [PPI]ON
[CAS]OFF
PI control P gain 1 [HA125]
PI control I gain 1 [HA126]
P control P gain 1 [HA127]
[CAS]ON
PI control P gain 2 [HA128]
PI control P gain 2 [HA129]
P control P gain 2 [HA130]
Q
A
!
[CAS]
ON
[HA121] set time [HA125]/
[HA126]/
[HA127]
[HA128]/
[HA129]/
[HA130]