Torque Limit - Omron 3G3RX Quick Start Manual

RX Quick Start Guide

3.16 Torque limit

Torque limit function allows you to limit the motor output when sensorless vector control "03", 0-Hz sensorless vector control
"04" or sensor vector control "05" is selected in A044. In open loop vector function has limited accuracy and repeatability, per-
formance is much better when encoder feedback is used. You can choose between different options using parameter b040.
• Quadrant specific setting mode (b040=00) in which individual torque limit values are applied on the four quadrants (for-
ward powering, reverse regeneration...) by torque limits 1 to 4 (b041 to b044)
Regeneration
b042
(
Reverse rotation
Powering
b043
(
• Terminal-switching mode (b040=01) where the torque limit values set in torque limits 1 to 4 (b041 to b044) are switched
depending on the combination of the states of the torque limit switch terminals 1 and 2 (TRQ1 and TRQ2) assigned to digital
inputs.
• Analog voltage input mode (b040=02) where the torque limit value is set by a voltage applied to the terminal O. Range 0 to
10V corresponds with torque limit range between 0 and 200% that is valid for all operating states.
• Option 1 and 2 allows to give the torque limit value from a communication option board installed on the inverter.
If "TL" torque limit enable functions has been assigned to any of the multi-function inputs the setting of parameter b040 only is
valid when this input is ON. No torque limitation will be applied when the input is OFF.
Parameter
b040
b041
b022
b043
b044
b045 Torque LADSTOP selection
100% torque is referred to inverter rated current, absolute torque value is up the motor to be combined. Range for inverters from
75 to 132KW is limited to 180% instead of 200%.
30
Torque
(+)
Powering
b041
) ( )
Forward rotation
Regeneration
b044
) ( )
Torque
(-)
Parameter name
Torque limit selection
Torque limit 1 (fwd/power)
Torque limit 2 (rev/regen.)
Torque limit 3 (rev/power)
Torque limit 4 (fwd/regen.)
Description
00: 4-quadrant (Four-quadrant separate setting)
01: TRQ input (Terminal switch)
02: [O] input (Analog input)
03: Option 1
04: Option 2
0 to 200% (0.4 to 55 kW)
0 to 180% (75 to 132 kW)
no (torque limit disabled)
0 to 200% (0.4 to 55 kW)
0 to 180% (75 to 132 kW)
no (torque limit disabled)
0 to 200% (0.4 to 55 kW)
0 to 180% (75 to 132 kW)
no (torque limit disabled)
0 to 200% (0.4 to 55 kW)
0 to 180% (75 to 132 kW)
no (torque limit disabled)
00: OFF (Disabled)
01: ON (Enabled)
RX Quick Start Guide