Mitsubishi Electric MELSEC-Q QD75M User Manual page 566

12 CONTROL SUB FUNCTIONS
Setting item
Torque limit
Pr.17
setting value
OPR torque limit
Pr.54
value
Setting item
Torque output
Cd.101
setting value
Refer to Section 5.2 "List of parameters" for setting details.
Torque limit value: Will be an upper limit value of the torque change value. Even if a larger value
has been mistakenly input for the torque change value, it is restricted within the torque limit setting
values to prevent an erroneous entry. (Even if a value larger than the torque limit setting value has
been input to the torque change value, the torque value is not changed.)
Torque output setting value: to be taken at the start of positioning, and used as a torque limit value.
If the value is "0" or larger than the torque limit setting value, the parameter "torque limit setting
value" is taken at the start.
PLC CPU
[4] Setting the torque limit function
(1) To use the "torque limit function", set the "torque limit value" in the
parameters shown in the following table, and write them to the QD75.
a) The set details are validated at the rising edge (OFF
READY signal (Y0).
Setting
value
Set the torque limit value as a percentage.
Set the torque limit value after the " Pr.47
speed" is reached. Set as a percentage.
b) The set details are validated at the rising edge (OFF
positioning start signal (Y10).
Setting
value
Set the torque output setting value as a percentage.
(2) The "torque limit value" set in the QD75 is set in the "
stored value".
26
86
1525
1552
826
Fig. 12.13 Limiting the torque to the servo amplifier (Axis 1)
Setting details
Setting details
QD75
Baffer memory
Torque limit setting value
OPR torque limit value
New torque value
Torque output setting value
Torque limit strored value
12 - 27
ON) of the PLC
Creep
ON) of the
Md.35
Servo amplifier
Positioning control
Torque limit value
MELSEC-Q
Factory-set
initial value
300
300
Factory-set
initial value
0
Torque limit