Sinee EM303A-011G/015P-3CB, Руководство пользователя

Страница: 113 / 139

User Manual
EM303A General Purpose Inverter
113
Torque control (SVC1)
EM303A could be under torque control in SVC1.
In SVC1, torque control function refers to the occasions when the excitation current
of motor is in close-loop, the actual motor speed can be estimated in real time
through the internal motor magnetic flux and the speed estimation function of
inverter, thus motor torque current can be actively controlled. Furthermore, the
output torque of output motor can be controlled.
When EM303A runs in SVC1, the maximum output frequency is limited by torque
control upper limit frequency (F5-14). When the setting torque of inverter is bigger
than the load torque, the output frequency rises. When the output frequency reaches
the upper limit frequency of torque control, inverter always runs as per upper limit
frequency, and when the setting torque of inverter is less than the load torque, the
output frequency drops.
No. Function Range Unit Default Type
F5-07 Torque Current Acceleration Time 0.000
～
30.000 S 0.040 ●
F5-08 Torque Current Deceleration Time 0.000 ～ 30.000 S 0.040 ●
F5-07 Time taken for torque current to rise from 0 up to rated current.
F5-08 Time taken for torque current to drop from rated current down to 0.
No. Function Range Unit Default Type
F5-09
Power Torque Current Limit
80.00 ～ 180.00 % 165.00 ●
F5-10
Brake Torque Current Limit
80.00 ～ 180.00 % 120.00 ●
For setting the current limit condition. If the output current (inverter) ＞ the setting
value (F5-09 and F5-10), current limit is enabled, thus the output current can be
controlled within current limit.
★
The parameters refer to the ratio of the output current (at current limit) to the
rated output current of inverter.