Mitsubishi Electric MELSEC-L02SCPU User Manual page 120

(f) Speed change to 0
• When bias speed at start is 0
If the bias speed at start is set to 0 and new speed value is changed to 0, the axis stops.
However, the Axis 1 busy (SM1840) does not turn off. Even when the axis is stopped, the Axis 1 axis
operation status (SD1844) does not change.
Speed change instruction
OFF
execution command
Start instruction execution
OFF
command
Axis 1 BUSY
OFF
(SM1840)
New speed value
Axis 1 speed 0
OFF
(SM1844)
Axis 1 operation status
(SD1844)
• When bias speed at start is other than 0
When the speed is changed to 0, an "Out of speed range" warning (Axis 1 warning code: 1020) occurs
and the axis operates at the bias speed at start.
• Occurrence of error
If the speed is changed and "Outside the acceleration/deceleration time setting" error (Axis 1 error code:
1502) or "Deceleration stop time out of range" error (Axis 1 error code: 1503) occurs under operation at
speed 0, the axis stops and the Axis 1 axis operation status (SD1844) changes to Error occurring (-1).
118
V
ON
ON
0
Speed 0
ON
1000
ON
(Not changed)
New speed value
Bias speed
at start
t