Related Items; Deviation Clear; Deviation Zero - Fuji Electric Faldic-a RYS-R Series User Manual

■ Related items

(1) Pulse train ratio 1 (basic para. 93)/Pulse train ratio 2 (basic para. 94)
The motor rotates by the rotational quantity per encoder 1 [pulse] in response to 1 [pulse] of pulse train input.
In normal encoder, one rotation of motor shaft corresponds to 65536 [pulse].
The move amount of mechanical equipment system can also be changed, using the pulse train ratio 1 (27) and 2 (28) setting of the control
input signals.
Basic parameter 93, 94
Para. Name
93 Pulse train ratio 1
94 Pulse train ratio 2

5.3.3 Deviation clear

When this signal turns on, the difference (deviation) between current command position and current feedback position is cleared to zero.
Deviation clear (Control input signal)
■ Function
While this signal is on, the difference (deviation) is kept to zero.
The deviation clear is valid during the on period of the speed zero [NZERO] signal.
Current command position is assigned as current feedback position.
■ Parameter setting
To allocate the deviation clear signal to the control input terminal, set (50) to the system para..
■ Related items
All of the rotation commands are ignored, while the deviation clear signal is on.
Even if the deviation clear is carried out, the current feedback position does not change.
The remaining deviation due to the contact stoppage can be cleared to zero when the work is released, in order to avoid movement
corresponding to the deviation quantity.
When the deviation clear is carried out, the deviation zero signal of the control output is on.

5.3.4 Deviation zero

Check can be done that the motor is near the command position.
Deviation zero (Control output signal)
■ Function
This signal turns on, when the difference (deviation) between the current command position and current feedback position is within the value
set by basic para. 53.
The level of setting value of basic para. 53 has no relation with the positioning accuracy.
Increasing the setting expedites outputting a deviation zero signal for stopping.
■ Parameter setting
To allocate the deviation zero signal to the control output terminal, set (23) to the system para..
■ Related item
Basic parameter 53
Para. Name
53 Deviation zero width
Setting is made by encoder pulse count.
Setting range
0.01 to 100.00 (in 0.01 step)
0.01 to 100.00 (in 0.01 step)
Setting range
10 to 10000 [pulse] (in 1 step)
5-10
Initial value Change
1.00 Always
10.00 Always
Initial value Change
200 Always
MHT260a (Engl.)