Mitsubishi Electric M800W Series, Connection And Set Up Manual

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M800W/M80W Series Connection and Setup Manual
33 Synchronous Control and Multiple-axis Synchronization Control
579 IB-1501268-K
(a) From the PLC, turn ON the bits of the "synchronous control operation method" signal, which are corresponding
to the master and slave axes, in order to select synchronous operation in "synchronous control mode".
(b) Carry out zero point return manually.
(c) When the master axis reaches a dog, both axes decelerate at the same time.
(d) After deceleration, both axes start traveling at a creep speed.
(e) The master axis travels until reaching the second grid after dog OFF, and stops on the grid.
(If the deceleration after dog OFF goes over the 1st grid, the master axis stops on the 3rd grid)
The slave axis moves in synchronization with the master axis, when the reference position adjustment value is
"0".
If the amount is other than "0", the slave axis moves asynchronously with the master axis after compensation
by the reference position adjustment value.
(f) The master axis travels by the reference position shift distance (#2027 G28sft), and then stops.
The slave axis travels in synchronization with the master axis.
(g) Switch to "Correction mode", and feed the slave axis by handle feed to the position to be defined as its zero
point.
(h) At this point, the "zero point adjustment completion" signal is input from the PLC.
(i)
When the "zero point adjustment completion" signal is input, the NC automatically sets the reference position
adjustment value in the parameter "#2036 slv_adjust" (reference position adjustment value).
Reference position adjustment value is a distance between the position obtained by subtracting the reference
position shift distance from the current position and a near grid. Select a grid with which this vector becomes
positive as the near grid.
"#" that stands for the zero point return completion is not displayed, and the alarm "Z81" is not cleared.
(j) Enter back into synchronous control mode synchronous operation.
(k) Carry out the normal manual zero point return. If necessary, adjust the position by the reference position shift
distancet (#2027 G28sft).
Set the reference position shift distance to the master axis' parameter. If set to the slave axis' parameter, the
setting is ignored.
Adjustment sequence
(a) (b) (c) (d) (e)
(f)
(g)
G28sft
G28sft
(f)
Master axis start position
Slave axis start position
Reference position adjustment value
Grid
Basic machine coordinate system zero point
Master axis
Slave axis
Near-point dog
zero point return
completion signal ON