Chapter 6 Command
6-15
6.3.12 Synchronous Start by Speed (Command : SSS)
(1) Program
(2) Description
Device Description
M0000E Axis Y speed synchronous start input
M00002 Axis X direct start input
D00000.0 Axis X in operation
D00000.1 Axis X error state
D00100.0 Axis Y in operation
D00100.1 Axis Y error state
Command SSS Synchronous start by speed
OP1 Slot Constant WORD Slot No. installed with positioning module
OP2 Axis PMLK,constant,D,Z,R,ZR WORD Command axis (0: axis X, 1: axis Y)
OP3 Main axis ratio PMLK,constant,D,Z,R,ZR WORD Speed sync. main axis ratio (1~65,535)
OP4
Subordinate axis
ratio
PMLK,constant,D,Z,R,ZR WORD Speed sync. sub axis ratio (1~65,535)
Operand
OP5 Main axis PMLK,constant,D,Z,R,ZR WORD Main axis(0 ~ 1 : axisX ~ axisY, 9 : Encoder)
※
PMLK means P, M, L and K areas.
(a) In the example program above, if the command of synchronous start by speed is executed, axis Y (subordinate axis) is
indicated as ‘in operation’ but the motor does not operate. If operating axis X set as the main axis, axis Y (subordinate
axis) is operated depending on the designated ratio between main axis(OP3) and sub axis(OP4).
(b) For example, if main axis ratio is 2, sub axis ratio is 1, when main axis moves by 4000, sub axis moves 2000.
(c) For the detail description about speed sync., refer to “9.4.1 Speed Synchronous Start Control”.
(d) D device signal (axis X in Operation, etc) which used in the example above is an assumption that saving the axis state
value in D device area with SRD command.
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