Yaskawa i80M Connecting Manual - Manual (Page 171)

20.2.55 SERVO OFF SIGNAL ( SVOFX # 30790, SVOFY # 30791, SVOFZ # 30792,
SVOF4 # 30793, SVOF5 # 30794)
This signal is used for cutting with the axis mechanically clamped. When the signal
5 contacts are open, servo lock for 1st-axis to 5th-axis are released. To the
machine, use M-function.
Shown below is a time chart
ready to Output
CLAMPED
of servo off signal, machine clamp, auxiliary function and servo
clamp command after positioning signal (DEN) is given.
UNCLAMPED
M CODE
OUTPUT
MECHANICALLY
CLAMPED
DEN
* SVOFX
- 5
- 5
Fig. 20.27 Servo Off Signal Time Chart
Parameter can select execution or no execution of the follow-up process,
When executing the follow-up process, shift the current NC value until the error counter becomes
O, as if there has been a command corresponding to the machine motion.
In this case, even when the SVOFF signal is restored to close, the machine remains at
the shifted position, and it moves to the correct position when a absolute command
is given, because the current NC value has been shifted from the machine position.
Conversely, when no follow-up process is executed,
counter. Then the machine moves to cancel the setting
stored to close.
20.2.56 MIRROR IMAGE (MIX #30820 TO M15 #30824)
the servo setting remains in the error
when the SERVO OFF signal is -
This input inverts the traveling direction in the automatic operation mode.
When automatic activation is performed with any of MIX to M15 input closed, the directions of
X to 5th axis are made opposite to the specified direction.
1. Mirror image input does not affect the axis travel in the manual operation mode.
For details, refer to YASNAC i80 Operator’s Manual.
2. Mirror image input changeover cannot be effected in the M95 mode.
The image input in the M95 mode remains effective until the mirror image mode
is turned OFF by the M94 command. For details refer to the YASNAC i80M Instruction
Manual (TOE-C843-11. 30).
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