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8 ZERO POINT RETURN CONTROL
Operation timing and processing time of high-speed zero point returns
The following shows details about the operation timing and time during high-speed
zero point returns
t1
t3
t2
In position control
Standing by
Standing by
Positioning start signal
BUSY signal
Start complete signal
Output pulse to external source
(PULSE)
Positioning operation
Axis operation status
[RWrn+7, RWrn+15]
[RY(n+1)0, RY(n+1)1]
[RXu1, RXn2]
[RXn4, RXn5]
Fig. 8.17 Operation timing and processing time of high-speed zero point returns
Normal timing time Unit: [ms]
t1 t2 t3
5 to 15 0 to 3.5
The t1 timing time could be delayed by the following factors.
1) Operation state of other axes
2) Presence of intervention from peripheral device during start process
3) Details of positioning data to be started
Operating precautions
If the high-speed zero point return is started when the zero point return request
flag (RX(n+1)F, RX(n+4)F) is ON, error "zero point return request ON" (error code:
207) will occur.