APP - 91
APPENDICES
2) Dogless home position signal reference method
When performing "dogless home position signal reference method" in
VC
series, the home position, home position return operation, and
home position return data (home position return retry function, dwell time
at the home position return retry) is the following.
Also, set the VC
series parameter "Function select of SSCNET
communication mode (P612) (Condition selection of home position set)"
as follows.
Servo amplifier type
Linear encoder
type
Home position
Home position
return operation
(Note-1)
Home position return data
Parameter "Function select of
SSCNET
communication
mode (P612) (Condition
selection of home position set)"
Home position
return retry
function
Dwell time at the
home position
return retry
VC series/
VPH series
Linear stage
Absolute
position type
Position where
address of absolute
linear encoder
becomes 0
Operation C Invalid —
Incremental
type
Reference mark Operation A Valid 0
Direct drive
motor
Absolute
position type
Home position signal
(zero point)
Operation A/
Operation B
Valid/Invalid 0/1
Incremental
type
Operation A Valid 0
(Note-1): Refer to Section 6.23.14 for home position return operation.
3) Home position return without passing motor Z phase
• When "1" is set in the first digit of the parameter of VC
series
"Function select of SSCNET
communication mode (P612)", it is
possible to carry out the home position return without passing the zero
point. (Return to home position after power is supplied will be executed
when passing of motor Z phase is not necessary.) When "0" is set, a
minor error (error code: 120) occurs because the home position is
executed without passing the motor Z phase (motor reference position
signal).
• When the parameter of VPH series "Marker (zero point/Z-phase)
transit selection in communication mode (P800)" is set to "Zero return
operation allowed", it is possible to carry out the home position return
without passing the zero point. (Return to home position after power is
supplied will be executed when passing of motor Z phase is not
necessary.) When "Zero return operation allowed after the marker is
passed" is set, a minor error (error code: 120) occurs because the
home position is executed without passing the motor Z phase (motor
reference position signal).
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