Stopping - Mitsubishi Electric MELSEC iQ-R-RD75P4 User Manual

1.2

Stopping

This section describes the stop control of the positioning. The following events may stop each positioning control by the
RD75.
• When each control ends normally
• When Drive unit READY signal (READY) is turned off
• When an error occurred in the CPU module
• When PLC READY signal [Y0] is turned off
• When an error occurs in the RD75
• When an operation is intentionally stopped (When a stop signal sent from the CPU module is turned on, or a stop signal
from an external device)
Stop processing
The stop controls are classified into three types: deceleration stop, sudden stop, and immediate stop. The following table
describes the stop controls (deceleration stop, sudden stop, and immediate stop) at the occurrence of each stop cause (When
the automatic deceleration control is performed).
Stop cause
Forced Drive unit READY
stop signal (READY) is
off
Fatal stop Hardware stroke
(Stop limit upper/lower
group 1) limit error occurred
Emergency CPU module error
stop (Stop occurred
group 2)
PLC READY signal
[Y0] is off
Failure in the test
mode
Relatively Axis error detection
safe stop (errors other than
(Stop the ones in stop
group 3) group 1 and 2)
Error at operation
mode switching in
amplifier-less
*2
operation
Intentional Stop signal turned
stop (Stop on by an external
group 3) device
Axis stop signal [Y4,
Y5, Y6, Y7] from the
CPU module is
turned on.
Stop signal from an
engineering tool
1 STARTING AND STOPPING
32
1.2 Stopping
Stop M code [Md.26]
axis ON Axis
signal operation
after status
stop after stop
Each Not Error
axis changed
Each Not Error
axis changed
All Not Error
axes changed
Turned
off
Not
changed
Each Not Error
axis changed
*1
All Not Error
axes changed
Each Not Stopped
axis changed (standby)
Stop processing
OPR control Major
positioning
Machine Fast
control
OPR OPR
control control
Immediate stop
Deceleration stop or sudden stop (Select with [Pr.37] Stop group 1
sudden stop selection.)
Deceleration stop or sudden stop (Select with [Pr.38] Stop group 2
sudden stop selection.)
Deceleration stop or sudden stop (Select with [Pr.39] Stop group 3
sudden stop selection.)
Advanced Manual control
positioning
Inching Manual
control
operation, pulse
JOG generator
operation operation
Deceleration
stop
Deceleration
stop
Deceleration
stop
Deceleration
stop