Forced Stop Control; Control Details - Mitsubishi Electric MELSEC Q Series User Manual

10 FUNCTION DETAILS

10.10 Forced Stop Control

10.10.1 Control details

Set the command speed to "0" at forced stop. When the forced stop command is
input to the servo amplifier ftrom the controller, the base circuit is shut off and the
dynamic brake operates to bring the servomotor to stop.
Refer to the "Servo amplifier Instruction Manual" for the dynamic brake
characterisrics.
The current position is updated in forced stop. Therefore, the origin coordinate
processing such as OPR is not necessary at forced stop removing.
Command speed
Actual speed
ON
Forced stop
OFF
Current position
Tthe external forced stop input by external 24VDC or the forced stop input signal [Y2]
with input signal from PLC CPU is used to execute the forced stop.
Valid/invalid of the external forced stop can be selected in "
stop selection".
The forced stop input signal [Y2] with input signal from PLC CPU is valid regardless
of "valid/Invalid' of the external forced stop, and it operates with positive logic.
(The forced stop is operated by the signal ON, and it is releaced by the signal OFF.)
The operation when the stop or sudden stop is commanded in sudden stop control is
shown below.
Control
"1" is set in "
Axis forced stop
"1" is set in "
control
stop".
Stop using dynamic brake
Current position is updated according
to movement in forced stop.
Input
Axis stop".
Cd.3
Axis sudden
Cd.4
10 - 19
MELSEC-Q
External forced
Pr.101
Operation
It is ignored.