NO.6 Detailed Function Description
62
6.8 Motor function parameters
P141
Setting range
Unit
Ex-factory value
Alteration
Rated voltage of motor
0.1V
*
╳
It shall be set as per rated voltage value on motor nameplate; ex-factory value of 230V grade
inverter and that of 440V grade inverter are respectively 220 and 380.
P142
Setting range
Unit
Ex-factory value
Alteration
Rated current of motor
0.1A
*
╳
This parameter shall be set according to rated value on motor nameplate and can be used
for limiting output current of the inverter so as to prevent over current and protect the motor;
in case that motor current exceeds this value, AC motor inverter shall provide the protection.
P143
Setting range
Unit
Ex-factory value
Alteration
Number of motor poles
02-22
1
04
╳
Number of motor poles shall be determined via this parameter which is set according to
motor nameplate.
P144
Setting range
Unit
Ex-factory value
Alteration
Motor rotating speed
0-9999
1r/min
1440
╳
It shall be set according to actual speed of the motor; displayed value is identical to this
parameter and can be used as the parameter used for monitoring to facilitate the user; this
set value is corresponding to the rotating speed at 50Hz.
P145
Setting range
Unit
Ex-factory value
Alteration
Automatic torque
compensation
0.0-10.0%
1%
2.0
╳
This parameter can be used to make the inverter
automatically output extra voltage during running
and to compensate the insufficient torque of motor
during
low
frequency.
Excessive
torque
compensation is inadvisable and the setting shall
be performed upward gradually based on actual
situation. Insufficient compensation shall cause
insufficient torque of the motor under low
frequency while excessive compensation shall
induce excessive torque, thus producing certain
impact on machinery and even causing inverter
tripping. As shown in the Figure 6-17 on the right.
Figure 6-17 Automatic Torque
Compensation
P146
Setting range
Unit
Ex-factory value
Alteration
No-load current of motor
0-100%
1%
40
╳
