Advertisement
1 PRODUCT OUTLINE
1.2.3 Outline of stopping
Stop cause
Drive unit
Forced stop
READY signal
OFF
Hardware stroke
Fatal stop
limit upper/lower
(Stop group 1)
limit error
occurrence
Software stroke
limit upper/lower
limit error
occurrence
Emergency
Remote station
stop
(Stop group 2)
READY signal
OFF
"Stop" input from
peripheral device
Axis error
detection (Error
Relatively safe
other than stop
stop
group 1 or 2)
(Stop group 3)
Error in test
mode
"Stop signal" ON
from external
source
Intentional stop
(Stop group 3)
"Axis stop signal"
ON from PLC
CPU
Each control is stopped in the following cases.
(1) When each control is completed normally.
(2) When the drive unit READY signal is turned OFF.
(3) When the data link of CC-Link stops.
(4) When Initial data setting request (RY(n+7)9) turns ON and Remote station READY
(RX(n+7)B) turns OFF.
(5) When an error occurs in the D75P2.
(6) When control is intentionally stopped (Stop signal from master module turned ON,
stop from peripheral device, etc.)
The outline for the stopping process in these cases is shown below. (Excluding (1) for
normal stopping.)
Axis
operation
status after
Stop
stopping
axis
(RWrn+7,
RWrn+15)
Each
During
axis
error
Each
During
axis
error
Each
axis
During
error
All
axes
Each
During
axis
error
When
Each
stopped
axis
(While
waiting)
Zero point return
control
High-
Main
Machine
speed
positioning
zero point
zero
control
return
point
control
return
control
Immediate stop
Deceleration stop/sudden stop
(Select with Pr.38 )
Deceleration stop/sudden stop
(Select with Pr.39 )
Deceleration stop/sudden stop
(Select with Pr.40 )
1 - 16
MELSEC-A
Stop process
Manual control
Advanced
positioning
JOG
control
opera-
tion
Manual
pulse
generator
operation
Immediate
stop
Decelera-
tion stop
Decelera-
tion stop
Decelera-
tion stop
Advertisement
Chapters
Troubleshooting
