RX Quick Start Guide 31
PROGRAMMING RX
3.17 Torque control
Torque control is only available in sensor vector control A044=”05” and it requires to setup following parameters. 100% torque is
referred to inverter rated current but absolute torque value depends on the motor connected.
To enable the torque control is necessary to assign the “ATR” (Enable torque command input) to one of the multi-function inputs
and set it to ON. When the input is OFF the inverter will work in speed mode.
When speed limit is reached the inverter changes between torque and speed proportional control so is possible that inverter runs
at higher speeds than the one set in P039 or P040 parameters.
3.18 Electronic thermal overload
The thermal overload detection protects the inverter and motor from overheating due to an excessive load using a current
inverse time curve to determine the trip point. The characteristic curve depends on dual rate setting in b049 and is unique for
both inverter and motor but reduction rate depending on the frequency could be selected in parameter b013
Parameter Parameter name Description
P033 Torque reference input selection 00: O (Terminal O)
01: OI (Terminal OI)
02: O2 (Terminal O2)
03: OPE (Digital operator)
06: Option 1
07: Option 2
P034 Torque reference setting 0 to 200% (0.4 to 55 kW)
0 to 180% (75 to 132 kW)
P035 Polarity selection at torque reference via O2 00: Sign (Signed)
01: Direction (Depends on the RUN direction)
P036 Torque bias mode 00: OFF (None)
01: OPE (Digital operator)
02: O2 (Terminal O2)
06: Option 1
07: Option 2
P037 Torque bias value -200 to 200% (0.4 to 55 kW)
-180 to 180% (75 to 132 kW)
P038 Torque bias polarity selection 00: Sign (Signed)
01: Direction (Depends on the RUN direction)
P039 Speed limit value in torque control
(forward)
0.00 to Maximum frequency
P040 Speed limit value in torque control
(reverse)
0.00 to Maximum frequency
Trip time (s)
Percentage of
b012/b212
60
3.0
0
200%150%109%
b049=00 (HD)
Trip time (s)
Percentage o
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