Mitsubishi A1SD75M1, Руководство пользователя

Страница: 543 / 746

12 - 71
MELSEC-A
12 CONTROL AUXILIARY FUNCTIONS
(2) Step mode
In step operations, the timing for stopping the control can be set. This is called
the "step mode". (The "step mode" is set in the control data " Cd.27 Step
mode".)
The following shows the two types of "step mode" functions.
(a) Deceleration unit step
The operation stops at positioning data requiring automatic deceleration. (A
normal operation will be carried out until the positioning data requiring
automatic deceleration is found. Once found, that positioning data will be
executed, and the operation will then automatically decelerate and stop.)
(b) Data No. unit step
The operation automatically decelerates and stops for each positioning
data. (Even in continuous path control, an automatic deceleration and stop
will be forcibly carried out.)
(3) Step start information
Control stopped by a step operation can be continued by setting "step continue"
(to continue the control) or restarted by setting "restart" in the "step start
information". (The "step start information" is set in the control data " Cd.28 Step
start information".)
The following table shows the results of starts using the "step start information"
during step operation.
(Warnings will only be output when the step valid flag is ON.)
Stop status in the step
operation
Md.35
Axis operation
status
Cd.28
Step start
information
Step start results
1: Step continue The next positioning data is executed.
1 step of positioning stopped
normally
Step standing by
2: Restart
A "step start information invalid warning"
occurs.
1: Step continue Control stopped by a stop
signal
Step stopped
2: Restart
A restart is carried out at the positioning data
where the control was stopped.
1: Step continue An error occurred, and the
control stopped
Step error occurring
2: Restart
A "step start information invalid warning"
occurs.
The following warnings will occur if the " Md.35 Axis operation status" is not
appropriate when step start information is set.
Md.35
Axis operation status Step start results
Standing by
Stopped
Error occurring
Servo has not been connected
In servo OFF
Step start information invalid warning
In interpolation
In JOG operation
In manual pulse generator operation
Analyzing
Waiting for special start
In zero point return
In position control
In speed control
In speed control of speed/position changeover control
In position control of speed/position changeover control
Start during operation warning