5.3 Description of Function Codes 5.3.9 d codes (Applied functions 2)
Providing the target position with relative position commands
If providing the target position with relative position commands, unlike absolute position commands, there is no
need to clear the current position when in-position. However, it is not possible to provide overshoot protection with
a software OT.
If the constant rate of feeding amount is set to 200.00 mm, the following parameter values should be set.
Target position = relative position
4 higher order digits of positioning data 1
4 lower order digits of positioning data 1
Furthermore, the following terminal functions should be set for the digital input terminals as terminal functions.
[Functions set for E01 to E09]
Position control/speed control switching "POS/Hz"
Positioning data update “POS-SET”
A time chart showing when these operations are performed is shown below.
出力周波数
時間
[POS/Hz]
[FWD]
[POS-SET]
[PSET]
ON
ON
OFFOFFOFF
OFF OFF OFFON ON ON
ON ON
定寸送り量 定寸送り量 定寸送り量
• Position control is enabled when “POS-SET” is ON.
• The inverter starts running when “FWD” is ON. If positioning data selection “POS-SEL#” has not been assigned,
positioning data 1 is selected as the stop target position.
• If starting operation from current position = 0, the target position is provided with target position = 0 (current
position) + 20000 (positioning data 1).
• After stopping at the target position, in-position “PSET” turns ON when the position deviation is in the in-position
range.
• With positioning data update “POS-SET” set to ON, operation begins under position control with the target
position = current position + 20000 (positioning data 1).
• Steps (3) to (4) are then repeated.
Constant rate
of feeding
amount
Constant rate
of feeding
amount
Constant rate
of feeding
amount
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