LSIS sv-ig5a, User Manual

Page: 99 / 186

7-19

Manual torque boost
Group Code Parameter Name Setting Range Initial Unit
Function
group 1
F27 [Torque Boost select] 0 0 ~ 1 0
F28 [Torque boost in forward direction]
- 0 ~ 15 2 %
F29 [Torque boost in reverse direction]

Set F27 to 0 {Manual torque boost}.

The values of [Torque boost in forward/reverse direction] are set separately in F28 and
F29.
CAUTION

If the boost value is set much higher than required, it may cause motor overheating due to
over-energizing.

Auto torque boost
Group Code Parameter Name Setting Range Initial Unit
Function group 1 F27 [Torque Boost select] 1 0 ~ 1 0
Function group 2 H34
[No load motor
Current]
- 0.1 ~ 100 - A
H41 [Auto tuning] 0 0 ~ 1 0
H42 [Stator resistance (Rs)] - 0 ~ 28 -


Before Auto Torque Boost setting, H34 and H42 should be set correctly (See page 10-6,
10-10).

Select 1{Auto torque boost} in F27.

Inverter automatically calculates torque boost value using motor parameters and outputs
the corresponding voltage.
FX
Time
RX
Voltage
FX torque
boost
No torque boost
100%
RX torque
boost
For Service Call 800-848-2504
For Service Call 800-848-2504