LS Industrial Systems GLOFA G7M-DR20U, Руководство пользователя

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Chapter 7. Usage of Various Functions
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(2) Speed Control (Uniform Speed Operation)
•
This controls the speed by the setting speed until deceleration stop command(POSCTR) is entered after execution by
POSVEL command..
•
The speed can be changed by the speed override instruction(POSSOR)
•
Speed control contains 2 types of start method : Forward direction start and Reverse direction start.
- Forward direction : when position address is positive number (+) (“0” included)
- Reverse direction : when position address is negative number (-)
Forward direction Reverse direction
Set second operand of POSVEL instruction to 0 Set second operand of POSVEL instruction to 1
•
Timing diagram
Please refer to the section ‘POSVEL’ for details.
(3) Synchronization control
•
After the execution of POSSYNC, the HSC input pulse speed is synchronized by the designated synchronization
scale.
•
Scale can be changed during the execution.
•
Setting range: 0 ~ 100%
Speed
On
Time
On
Setting speed
Dwell time
Deceleration stop command
(POSCTR)
Speed control command
(POSVEL)
REMARK
Scale =
Positioning speed
HSC input speed