Operation During Stop - Panasonic AFP7MC16EC User Manual

12.3 Operation During Stop

 Operation during stop
• The stop request for the system stop is performed by turning on an output signal (Y0) in the
I/O area. The stop requests for the emergency stop, deceleration stop and pause are
performed by turning on the bits allocated to the unit memories (UM) area.
• The stopped state is held while each request signal is on until each of them turns off. Any
operation cannot be activated in the stopped state. It is also the same in the cases of limit
stop, software limit stop and error stop.
 Priority of stop operations
• When stop control requests are made simultaneously, the stop operations are executed
according to the following priority.
System stop > Limit stop > Software limit stop > Error stop > Emergency stop > Deceleration
stop
 Dwell time setting
• The dwell time setting is invalid in the stop operations regardless of operation patterns.
• However, the dwell time setting is valid in the positioning operation after a pause.
 Flag processing
• In the case of system stop, the busy flag turns off and the operation done flag turns on.
• In the cases of emergency stop, limit stop, software limit stop, error stop and deceleration
stop, the busy flag turns off and the operation done flag turns on after the completion of
deceleration.
 Current value coordinate
• Even in a stop operation, the current value coordinate area is always updated.
• After the emergency stop, limit stop, software limit stop, error stop, deceleration stop or
pause, deceleration is performed in each specified deceleration time, and values at the time
of stop are stored.
• In the case of system stop, the value at the time of stop is stored.
 Operation when home return operation is performed
• For the home return methods which are based on the home position (Z phase) (i.e. DOG
method 1, DOG method 3, Limit method 1, Z phase method and Stop-on-contact method 2),
the home return operation after shifting to the creep speed is controlled by the servo
amplifier A6B/A5B. During this operation, the high-order PLC (FP7 MC Unit) cannot control
the operation. Please design and evaluate the system to avoid any danger even after shifting
to the creep speed.
12.3 Operation During Stop
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