Group 4.4 - Open Loop Torque Boost
Parameter Number | Parameter Name | Units | Default | Available Settings | Access | Change During Run | Scaling | Size (Bytes) | CAN Register | CAN Sub Index | Modbus Register |
|---|---|---|---|---|---|---|---|---|---|---|---|
P4-12 | Low frequency torque boost current at start | % | 0.0% | 0.0 ... 200.0% | RW | Y | 1 = 0.1% | 2 | 219Ch | 0 | 412 |
P4-13 | Low frequency Torque Boost current at start Frequency limit | % | 0.0% | 0.0 ... 100.0% | RW | Y | 1 = 0.1% | 2 | 219Dh | 0 | 413 |
P4-14 | Low frequency Torque boost current at stop | % | 0.0% | 0.0 ... 200.0% | RW | Y | 1 = 0.1% | 2 | 219Eh | 0 | 414 |
P4-15 | Torque Boost Frequency limit at stop | % | 0.0% | 0.0 ... 100.0% | RW | Y | 1 = 0.1% | 2 | 219Fh | 0 | 415 |
Low frequency torque boost current at start
Only effective when operating without an encoder.
Allows a Boost current to be applied at start-up and low frequency (limit defined by P4-13), as a % of the motor rated current (P4-03). Injecting some additional current into the motor at low speed to ensure that rotor alignment is maintained and improving operation during starting and low speed with additional holding torque.
Low frequency Torque Boost current at start Frequency limit
Frequency range for applied boost current (P4-12) as a % of motor rated frequency (P4-04). This sets the frequency cut-off point above which boost current (P4-12) is no longer applied to the motor.
Low frequency Torque boost current at stop
Only effective when operating without an encoder. Allows a Boost current to be applied at stop and low frequency (limit defined by P4-15), as a % of the motor rated current (P4-03). Injecting some additional current into the motor at low speed to ensure that rotor alignment is maintained and improving operation during stopping with additional holding torque.
Torque Boost Frequency limit at stop
Only effective when operating without an encoder. Frequency range for applied boost current (P4-14) as a % of motor rated frequency (P4-04). This sets the frequency cut-off point below which boost current is no longer applied to the motor.