6 SERVO MOTOR DRIVING
6.2 Point table mode (pt)
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6
Temporary stop/restart
When "Controlword bit 8 (HALT)" is switched on during automatic operation, the servo motor decelerates with the deceleration
time constant of the point table being executed, and then stops temporarily. When "Controlword bit 8 (HALT)" is switched off
during a temporary stop, the servo motor starts to travel for the remaining travel distance.
"Controlword bit 4 (New set-point)" does not function even it is switched on during a temporary stop.
When any of the following conditions is satisfied during a temporary stop, the remaining travel distance is cleared.
• The control mode was changed from point table mode (pt) to jog mode (jg).
• The servo motor enters the servo-off status.
• The clear signal was input.
The temporary stop/restart input functions in the following status.
■
When the servo motor is rotating
Operation status
Point table mode (pt)
Jog mode (jg)
Homing mode (hm)
During a stop
Temporary stop
Temporary stop
During acceleration
Temporary stop
Temporary stop
Temporary stop
At a constant speed
Temporary stop
Temporary stop
Temporary stop
During deceleration
Temporary stop
Temporary stop
During a temporary stop
Restart
Restart
Stop
ON
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
ON
Controlword bit 4
(New set-point)
Target point table
Controlword bit 8 (Halt)
Point actual value
INP/S_INP
Status DO 5 bit 5
Status DO 5 bit 6
0 r/min
Acceleration time constant of
point table No. n
Deceleration time constant of
point table No. n
Remaining
distance
Forward
rotation
Servo motor speed
Reverse
rotation
No. n
(S_CPO (Rough match))
(In-position)
(S_MEND (Travel completion))
No. n