Mitsubishi Melsec-Q QD75P1 User Manual page 501

12 CONTROL SUB FUNCTIONS
Setting item
Torque limit
Pr.17
setting value
OPR torque limit
Pr.54
value
Refer to Section 5.2 "List of parameters" for setting details.
PLC CPU
Monitor item
Torque limit stored
Md.35
value
Refer to Section 5.6 "List of monitor data" for information on the setting details.
[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.
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.
(2) The "torque limit value" set in the QD75 is set in the "
stored value". The "
program is transferred to the "D/A converter module", and the torque is
limited.
Reading by a
FROM command
Writing by a
TO command
Fig. 12.14 Limiting the torque to the drive unit (Axis 1)
The following table shows the "
buffer memory address.
Monitor
value
The "torque limit value" valid at that time is
stored. (
REMARK
Parameters are set for each axis.
It is recommended that the parameters be set whenever possible with GX
Configurator-QP. Execution by sequence program uses many sequence programs
and devices. The execution becomes complicated, and the scan times will
increase.
Setting details
Md.35 Torque limit stored value" in the sequence
QD75
Buffer memory
Positioning control
Stored torque
826
limit value
D/A convertor module
Torque limiting
Md.35
Storage details
Pr.17 , Pr.54 , or
12 - 25
MELSEC-Q
ON) of the PLC
Creep
Md.35
Drive unit
Torque limit stored value" of the
Buffer memory address
Axis Axis
1
826 926 1026 1126
Cd.22 )
Factory-set
initial value
300
300
Torque limit
Axis Axis
2 3 4