4-3 Functions When Multi-function Feedback Option Board (3G3AX-PG01) Is Used Torque Control •Under this function, the Inverter can be used in torque control, as well as in the speed and pulse train position controls. Torque control can be applied to winders, and more. •To run the Inverter in torque control mode, allocate "52" (ATR) to any of the multi-function inputs. While the ATR terminal is turned on, the torque reference input is enabled. •In torque reference setting P034, you can select one of the three analog inputs or the input via the Digital Operator. •The torque control speed depends on the balance between torque and load.
To prevent the Inverter from running out of control, set a speed limit value in P039 (forward) or P040 (reverse). 4 Functions ATR terminal Torque bias Torque limit Torque reference (Reference value for current control) Torque reference input Speed control (P control) Speed monitor Speed limit value The speed control (P control) operates when a speed detection value exceeds the limit value. Speed detection value 4-119 Parameter No. Function name Data Default setting Unit P033 Torque reference input selection 00: Input via terminal FV 01: Input via terminal FI 02: Input via terminal FE 03: Input via the Digital Operator 00 P034 Torque reference setting 0 to 200:
Torque reference when P033 = 03 0. % P035 Polarity selection at torque reference via FE 00: As per sign 01: Depends on the RUN direction 00 - P039 Speed limit value in torque control (forward) 0.00 to 99.99/100.0 to 400.0 0.00 Hz P040 Speed limit value in torque control (reverse) 0.00 to 99.99/100.0 to 400.0 0.00 Hz P036 Torque bias mode 00: Disabled 01: Set via the Digital Operator 02: Set via terminal FE 00 P037 Torque bias value -200 to +200: Enabled when P036 = 01 0. % P038 Torque bias polarity selection 00: As per sign 01: Depends on the RUN direction 00 C001 to C008 Multi-function inputs 1 to 8 selection 52:
ATR (torque reference input permission) Related functions d009, d010, d012