Mitsubishi Electric MELSEC-Q Series - Page 284

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6 POSITIONING CONTROL
[Cautions]
(1) The feed current value is changed to "0" at the start.
When speed control (
) is executed in the absolute position system, the feed
current value that is restored when the control circuit power supply of the servo
amplifier or the Multiple CPU system power supply is turned ON again, may be
different from the feed current value before the power supply was turned ON
again.
(2) The dwell time cannot be set.
(3) Even if the speed command is set as probe data by the digital oscilloscope
function, the value on digital oscilloscope does not change with "0".
[Program]
Program for speed control (
) is shown as the following conditions.
(1) System configuration
Speed control ( ) of Axis 3.
Start/stop command (PX000)
Q172D
CPU
Q172D
LX
QX41 QY41PQ61P Q03UD
CPU
Motion CPU control module
AMP
M
Axis
1
AMP
M
Axis
2
AMP
M
Axis
4
AMP
M
Axis
3
(2) Speed control ( ) conditions
(a) Speed control ( ) conditions are shown below.
Item Setting
Servo program No. No.55
Control axis Axis 3
Control speed 4000
Rotation direction Forward
(b) Speed control (
) start command ....... PX000 Leading edge (OFF ON)
(c) Stop command .....…………………… PX000 Trailing edge (ON
OFF)