Omron RX Series - Torque Bias Function Settings

6 Vector Control
6 - 30
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
• When the Multi-function Input S1 to S8 Selection (C001 to C008) is set to 26 (CAS: Control gain
switching), turning OFF/ON the signal switches the control method as follows.
• When the Multi-function Input S1 to S8 Selection (C001 to C008) is not set to 26 (CAS: Control gain
switching), the inverter uses the same parameter settings as when the signal is OFF.
• This function applies bias to the torque reference output from the speed control loop and is enabled
when sensor vector control is selected.
It is useful when the inverter needs to output a sufficient torque to ensure smooth release/hold of the
brake in elevating axis.
OFF H050/H250/H051/H251/H052/H252
ON H070/H071/H072
6-4-4 Torque Bias Function Settings
Parameter No. Function name Data Default data Unit
P036 Torque Bias Mode
00: None
01: Set via the Digital Operator (P037)
02: Set via terminal FE
*1
*1. When the torque bias function is allocated to the terminal FE, the inverter recognizes –10 to 10 V as –200 to
200% (for 0.4 to 55 kW) and as –180 to 180% (for 75 to 132 kW), respectively.
00 –
P037 Torque Bias Value
–200 to 200. (04 to 55 kW)
–180 to 180. (75 to 132 kW)
Enabled when P036 = 01
0. %
P038
Torque Bias Polarity
Selection
*2
*2. When P038 = 00 (Signed): The torque increases in the forward direction when the torque bias signal is positive
(+) and in the reverse direction when negative (–), independent of the RUN direction.
When P038 = 01 (Depends on the RUN direction): The torque bias signal sign (+/–) and the direction in which
the torque bias function operates change depending on the RUN command direction.
00: Signed
01: Depends on the RUN direction
00 –
Related functions d010
Forward command
Torque bias value increases in forward direction when torque bias
value is positive (+).
Reverse command
Torque bias value increases in reverse direction when torque bias
value is positive (+).