Omron 3G3RX - Page 177

4-58
4-2 Function Mode
4
Functions
•You can select any of the following four torque limit functions from torque limit selection b040.
<Four-quadrant separate setting mode>
Sets torque limits 1 to 4 (b041 to b044) for four quadrants
(forward power running, regeneration, reverse power running, and regeneration).
<Terminal switching mode>
Switches over torque limits 1 to 4 (b041 to b044), depending on combinations of torque limit
switchings 1 and 2 (TRQ1 and TRQ2) allocated to multi-function inputs. Selected torque limit
values are enabled for all operation modes.
<Analog input mode>
Sets a torque limit value depending on the voltage applied to terminal O2 on the control terminal
block. 0 to 10 V correspond to torque limit values of 0% to 200%. Selected torque limit values
are enabled for all operation modes.
<Option (option 1, option 2) mode>
Enabled when an optional 3G3AX-DI01 board is used. For details, refer to the optional board
instruction manual.
•If the torque limit enable function (TL) is set for a multi-function input, the torque limit function set
in b040 is enabled only when TL is turned on. When TL is off, the torque limit setting is disabled,
and the maximum value is defined as the torque limit value. Unless the torque limit enable function
(TL) is set for a multi-function input, the torque limit function set in torque limit selection b040 is
always enabled.
•With this function, the torque limit value is set with the Inverter's maximum output current as 200%.
This means output torque varies depending on the combination of motors. Note that the torque limit
value is not the absolute one.
•When the torque limit signal is selected in the multi-function output selection, the torque limit signal
is turned on when the above torque limit function is activated.
•The following figure shows torque limits 1 to 4 with "00" (four-quadrant separate setting) selected
in torque limit selection b040.
•The following figure shows torque limits 1 to 4 with "01" (terminal switching) selected in torque limit
selection b040. They can be switched with torque limit switchings 1 and 2 allocated to multi-
function inputs.
(Example) When torque limit switching 1 (41) and torque limit switching 2 (42) are allocated to
multi-function input terminals 7 and 8, respectively
•To use the torque limit function in a low speed range, also use the overload limit function.
Torque
Regeneration
b042
Power running
b041
Regeneration
b044
Power running
b043
Reverse (RV) Forward (FW)
Multi-function input terminals
(41)
(42)
7
8 P24
OFF
OFF
b041
ON
OFF
OFF
ON
ON
ON
b042
b043
b044