6. Description of Parameters
- 167 -
Function
Code
Parameter Name Setting Range Setting
A0-01
Torque reference
source in torque
control
0: Set by A0-03
1: AI1
2: AI2
3: AI3
4: Pulse reference
(DI5)
5: Serial comms.
6: MIN (AI1, AI2)
7: MAX (AI1, AI2)
0
A0-03
Torque digital setting
in torque control
-200.0% to 200.0% 130.0%
A0-07
Acceleration time in
torque control
0.00s to 65000s 0.00s
A0-08
Deceleration time in
torque control
0.00s to 65000s 0.00s
● Do not set start frequency in torque control. Otherwise, larger rush-in
current results at start.
● Reduce setting of A8-11 of the slave in master and slave control but
the setting must be larger than 0.20 Hz. Meanwhile, if deceleration
time is very short, increase setting of A8-11 properly. The larger the
setting of A8-11 is, the weaker window effect will be obtained.
Set initial value to half of rated motor slip. You can obtain rated motor slip according to
the following formulas:
Number of pole pairs of motor (take an integer) = (60 x rated motor frequency)/rated
motor speed
Synchronous motor speed = (60 x rated motor frequency)/number of pole pairs of
motor
Rated motor slip = (synchronous motor speed - rated motor speed)/synchronous
motor speed x rated motor frequency