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16. INDEXER POSITIONING OPERATION
16.3.2 Detailed description of signals (devices)
(1) Forward rotation start
reverse rotation start temporary stop/restart
(a) A start (RYn1) should make the sequence which can be used after the main circuit has been
established. These signals are invalid if it is switched on before the main circuit is established.
Normally, it is interlocked with the ready signal (RD).
(b) A start in the servo amplifier is made when a start (RYn1) changes from OFF to ON. The delay time of
the servo amplifier's internal processing is max. 3ms. The delay time of other devices is max. 10ms.
(c) When a programmable controller is used, the ON time of a start (RYn1), should be 6ms or longer to
prevent a malfunction.
(d) During operation, the start (RYn1) is not accepted. The next operation should always be started after
the rough match (RXn2) is output with the rough match output range set to “0” or after the movement
completion (RXnC) is output.
(2) Movement completion
rough match in position
POINT
If an alarm cause, etc. are removed and servo-on occurs after a stop is made
by servo-off, alarm occurrence or Forced stop (EMG) ON during automatic
operation, Movement completion (MEND), Rough-match, (CPO) and In
position (INP) are turned on. To resume operation, confirm the current
position and the selected point table No. for preventing unexpected operation.
(a) Movement completion
The following timing charts show the output timing relationships between the position command
generated in the servo amplifier and the movement completion (RYnC). This timing can be changed
using parameter No.PA10 (in-position range). RYnC turns ON in the servo-on status.
Position command and
servo motor speed
3ms or less
In-position range
Servo motor speed
Position command
OFF
ON
OFF
ON
Forward
rotation
0r/min
Start (RYn1)
Movement completion (RXnC)
When parameter No.PA10 is small
Position command and
servo motor speed
3ms or less
In-position range
Servo motor speed
Position command
OFF
ON
OFF
ON
Forward
rotation
0r/min
Start (RYn1)
Movement completion (RXnC)
When parameter No.PA10 is large