YASKAWA SGD7S-****20A Series User Manual

6.6 Software Limits
6.6.1 Setting to Enable/Disable Software Limits
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6
Application Functions
6.6 Software Limits
You can set limits in the software for machine movement that do not use the overtravel signals
(P-OT and N-OT). If a software limit is exceeded, an emergency stop will be executed in the
same way as it is for overtravel.
You must make the following settings to use the software limits.
• You must enable the software limit function.
• You must set the software limits.
6.6.1 Setting to Enable/Disable Software Limits
You can use Pn801= n.X (Software Limit Selection) to enable and disable the software
limit function. One of following commands must be executed to define the origin of the machine
coordinate system before the software limits will operate. Otherwise, the software limit function
will not operate even if a software limit is exceeded.
• The ZRET command has been executed.
• The POS_SET command has been executed with REFE set to 1.
• If an absolute encoder is used, the SENS_ON (Turn ON Sensor) command must have been
completed.
6.6.2 Setting the Software Limits
Software limits are set in both the forward and reverse directions.
The reverse software limit must be less than the forward software limit to set a limit in each
direction.
6.6.3 Software Limit Check for References
You can enable or disable software limit checks for commands that have target position refer-
ences, such as POSING or INTERPOLATE. If the target position exceeds a software limit, a
deceleration stop will be performed from the position set as the software limit.
Parameter Meaning When Enabled Classification
Pn801
n.0
Enable both forward and reverse soft-
ware limits.
Immediately Setup
n.
1 Disable forward software limit.
n.2 Disable reverse software limit.
n.3
(default setting)
Disable both forward and reverse soft-
ware limits.
Pn804
Forward Software Limit
Setting Range Setting Unit Default Setting When Enabled Classification
-1,073,741,823 to
1,073,741,823
1 reference unit 1,073,741,823 Immediately Setup
Pn806
Reverse Software Limit
Setting Range Setting Unit Default Setting When Enabled Classification
-1,073,741,823 to
1,073,741,823
1 reference unit -1,073,741,823 Immediately Setup
Position
Position
Parameter Meaning When Enabled Classification
Pn801
n.
0
(default setting)
Do not perform software limit checks for
references.
Immediately Setup
n.1
Perform software limit checks for refer-
ences.

YASKAWA SGD7S-****20A Series Specifications

General

Brand	YASKAWA
Model	SGD7S-****20A Series
Category	Servo Drives
Language	English