Omron SYSDRIVE 3G3RV, User Manual

Page: 254 / 446

6
-38
n
Adjusting the Torque Compensation Primary Delay Time Constant
Set
the torque compensation function primary delay in ms.
The
factory setting is related to the control method as follows:
•
V/f
control without PG: 200 ms
• V/f
control with PG: 200 ms
•
open
loop vector control: 20 ms
Normally,
there is no need to change the set value. The parameter can be adjusted as follows:
•
If
the motor is vibrating, increase the set value.
• If
the motor response is low, decrease the set value.
K
K K
K
Hunting-prevention Function
The
hunting-prevention function suppresses hunting when the motor is operating with a light load. This func-
tion
can be used in V/f without PG and V/f with PG.
n
Related Parameters
Param-
eter
Num-
ber
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
V/f
with
PG
Open
Loop
Vec-
tor
LCD Display
N1-01
Hunting-prevention
func-
tion
selection
0:
Hunting-prevention function disabled
1:
Hunting-prevention function enabled
The
hunting-prevention function suppresses hunt-
ing
when the motor is operating with a light load.
This
function is enabled in V/f control method
only.
If
high response is to be given priority over vibra-
tion
suppression, disable the hunting-prevention
function.
0
or 1
1 No A A No
Hunt
Prev Select
N1-02
Hunting-prevention
gain
Set
the hunting-prevention gain multiplication fac-
tor.
Normally,
there is no need to make this setting.
Make
the adjustments as follows:
• If
vibration occurs with light load, increase the
setting.
• If
the motor stalls, reduce the setting.
If
the setting is too large, the voltage will be too
suppressed
and the motor may stall.
0.00
to
2.50
1.00 No A A No
Hunt
Prev Gain