Precautions - Mitsubishi Electric MELSEC iQ-R Series User Manual

[For Buffered]
FB1: Execute
FB1: Active
FB1: Busy
FB1: InVelocity
FB2: Execute
FB2: Busy
FB2: Active
AxisName.Md.SetVelocity
Velocity(FB1)
=1000
LimitVelocity(FB2)
=750
AxisName.Md.
AxisStatus
Modes of operation
AxisName.Md.
Driver_Mode
When the operation direction is reversed
When starting this FB and operation direction is reversed during another instruction execution, a deceleration stop is
performed once. After the deceleration stop is completed, operation is started to the changed direction.

Precautions

• AxisName.Cd.VelocityOverride and AxisName.Cd.AccelerationOverride are valid.
• The set position and the feed machine position are updated by follow up.
• Switching time to the control mode depends on the specifications of the driver.
• When the stop cause occurs during the control mode switching, the axis will stop immediately.
When using the MR-J5(W)-G
When switching from the position control mode to the speed control mode or from the speed control mode to the position
control mode without waiting for stop of the motor, note the followings.
• Set "ZSP disabled selection at control switching (PC76.1)" of the servo parameter (extension setting) to "1: Disabled" and
disable monitoring of zero speed status. However, note that it may cause vibration or impact at control mode switching.
• Set the servo parameter "Electronic gear numerator (PA06)" and "Electronic gear denominator (PA07)" as 1:1. The
command value from the controller may be error at the control mode switching. When switching the control mode after the
motor stops, the operation is possible other than the setting of 1:1.
7 DIRECT CONTROL
252
7.1 Velocity Control
FB1 FB2
6: ContinuousMotion
csv
9: csv
The current speed is maintained while waiting
for switching. (The set velocity when InVelocity
of the FB1 is TRUE)
cst
10: cst