Torque Change Function - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

Torque change function

Torque change function changes the torque limit value during the control. The torque limit value during the control is normally
the value in [Pr.17] Torque limit setting value that was previously set in the parameters. However, by setting a new torque limit
value in [Cd.22] New torque value, the axis control data, and writing it to the positioning module, the torque generated in the
servomotor during the control can be limited with the new torque value. ([Cd.22] New torque value is validated when the value
is written to the positioning module.)
Control details
The setting of [Cd.22] New torque value is reflected to [Md.35] Torque limit stored value when the first [Cd.190] PLC READY
signal is turned on after the power-on. After [Cd.190] PLC READY signal is turned on, the setting of [Cd.22] New torque value
is always reflected to [Md.35] Torque limit stored value every time [Cd.22] New torque value is changed.
To return the value in [Md.35] Torque limit stored value to the value in [Pr.17] Torque limit setting value after the torque is
changed, set 0 in [Cd.22] New torque value and turn off and on [Cd.190] PLC READY signal. (If [Cd.22] New torque value was
0 when [Cd.190] PLC READY signal is turned on, the value in [Pr.17] Torque limit setting value is set to [Md.35] Torque limit
stored value.)
The setting range is between 0 and [Pr.17] Torque limit setting value. When the new torque value is 0, a torque change is
considered not to be performed.
Various operation
[Cd.190] PLC READY signal
[Pr.17] Torque limit
setting value
[Cd.22] New torque value
[Md.35] Torque limit
stored value
12 CONTROL SUB FUNCTION
252
12.5 Functions that Change Control Details
V
ON
OFF
100% 50%
0%
Torque control performed at
the torque control setting value
of the parameter (50%)
100% 50%
25%
Torque control is performed
at the torque change value in
the axis control data (25%)
25% 25%
t
0%
Torque change is ignored