2-Speed Positioning Operation - Mitsubishi Electric MELSEC-F Series User Manual

FX -1PG User's Manual
3U
9.4

2-speed Positioning Operation

By the 2-speed positioning operation start command, the operation starts with the operation speed I. It moves
to target address I, changes the speed to operation speed II, and travels to the target address II, and
decelerates and stops.
1. Operation
1) Set the operation speed I, operation speed II, target address I, and target address II.
2) When the 2-speed positioning operation start of the operation command is turned from off to on, the 2-
speed positioning operation in the operation speed I starts. (The positioning completion flag turns off.)
3) The speed changes to the operation speed II at the target address I.
(The 1-speed completion flag turns on.)
4) The operation decelerates and stops at the target address II and turns on the positioning completion flag
and ends the operation.
2-speed positioning
operation start
(BFM#25 b10)
Positioning
completion flag
(BFM#28 b8)
READY
(BFM#28 b0)
1-speed completion flag
(BFM#28 b9)
Point
When the travel amount is 0, the positioning operation is not executed even when the 2-speed positioning
operation start is turned on. In addition, the positioning completion flag also does not change. The READY
turns off only for an instant.
2. Address specification
Both absolute address and the relative address specification is possible.
With absolute address specified: Specifies the distance from the address 0.
With relative address specified: Specifies the travel distance from the current address.
3. Rotation direction
• With the specified absolute address:
The rotation direction is determined according to the relationship between the current address, the target
address I, and the target address II.
- Current address < Target address Ι, Target address I < Target address ΙΙ: Forward
- Current address > Target address Ι, Target address I > Target address ΙΙ: Reverse
Speed
Maximum speed
Operation speed I
Target address I
Bias speed
Acceleration/
deceleration time
(Acceleration time)
ON
OFF
ON
ON
OFF
→ For change of the operation speed, refer to Section 6.6.
→ For change of the target address, refer to Section 6.7.
→ For details on the STOP command, refer to Section 6.5.
Operation speed II
Target address II
Acceleration/
deceleration time
(Deceleration time)
OFF
OFF
ON
9 Positioning Control
9.4 2-speed Positioning Operation
Time
ON
ON
OFF
95
1
2
3
4
5
6
7
8
9
10