YASKAWA SVC User Manual page 182

• Overtravel Signal Detected during Travel at the Approach Speed
Approach Speed
(OL 3E)
*2
N-OT
*1.
SERVOPACK P-OT signal.
*2.
SERVOPACK N-OT signal.
1. The travel distance after the phase-C pulse is detected is the value of the Zero Point
Information
Return Travel Distance parameter. The positioning speed is the value of the Speed
Reference Setting parameter.
2. If an overtravel signal is detected during motion at the approach speed, an overtravel
alarm will not occur. The direction will be reversed, and a search will be performed for
the INPUT signal.
3. If an overtravel signal is detected when the axis is moving at the positioning speed, an
overtravel alarm will occur.
4. The stop method when an overtravel signal is detected depends on the SERVOPACK
parameter settings.
 Setting Parameters
Register Address
Zero Point Return

OW 3C
Method
Speed Reference Set-

OL 10
ting

OL 3E Approach Speed

OL 40 Creep Speed
Zero Point Return

OL 42
Travel Distance
Zero Point Return

OW 05 Bit B
Input Signal
Approach Speed
(OL 3E)
Speed Reference Setting (OL
Zero Point Return
Travel Distance
Start
(OL
Creep Speed
(OL
INPUT signal
(bit B in OW 05)
Phase-C pulse
Name
18: INPUT + C pulse
Set the positioning speed to use after the phase-C pulse is
detected. The sign is ignored.
The travel direction depends on the sign of the Zero Point
Return Travel Distance parameter.
Set the speed at which to begin the origin return operation.
The travel direction depends on the sign of the approach
speed.
Set the speed and direction (based on the sign) after the INPUT
signal is detected.
Set the travel distance after the phase-C pulse is detected.
The travel direction depends on the sign.
This signal must be turned ON from a ladder program.
4.2 Motion Command Details
4.2.3 ZRET (Zero Point Return)
10)
42)
Origin
40)
Setting Details
*1
P-OT
4
4-39