Mitsubishi Electric MELSEC iQ-R-RD75P4 User Manual page 53

Restrictions
• Always limit the servomotor torque after the speed reaches the speed set in [Pr.47] Creep speed. Otherwise the servomotor
may be damaged when the workpiece hits to the stopper. (Page 232 Torque limit function)
• Use an external input signal as a zero signal.
• The OPR retry function cannot be used for Stopper method 3.
Precautions during the operation
• If a zero signal is input before the workpiece stops at the stopper, the workpiece stops at that position and the position is set
as an OP. In this case, no error will occur.
Zero signal
Torque limit
Machine OPR start OFF
(Positioning start signal)
[Y10, Y11, Y12, Y13]
OFF
OPR request flag
Status: b3
Md.31
OFF
OPR complete flag
Md.31
Status: b4
Deviation counter clear output
Standby
Md.26 Axis operation status
Movement amount
Md.34 after near-point dog Inconsistent
ON
Md.20
Current feed value
Inconsistent
Md.21
Machine feed value
Torque limit stored
Md.35
Inconsistent
value
• When the machine OPR has been stopped by a stop signal, perform the machine OPR again. If Restart command is turned
on after the stop by a stop signal, OPR restart not possible (Error code: 1946H) occurs.
V
Pr.47
Torque limit valid range
ON
ON
OPR
0
A value of the movement amount is stored.
OPR torque limit value
Creep speed
Stopper
t
ON
Deviation counter clear signal
Pr.55
output time
Standby
OP address
2
2 OPR CONTROL
51
2.2 Machine OPR