Yaskawa MP920 Motion Module User Manual
Page 200
5 SVA Module Specifications and Handling
5.4.1 Motion Fixed Parameters
5-58
23
Infinite Length Axis
Reset Position
(POSMAX)
Set the reset position for a rotation when infinite length axis is set. This parameter
is not valid when a finite length axis is set.
• Setting range: 1 to 2
31
-1 [reference units]
Example: For a rotating load, the value will be reset every 360
°.
360000
25
Maximum Number of
Absolute Encoder
Turns
(MAXTURN)
Set the maximum number of rotations for the absolute encoder when an absolute
encoder is used.
• Setting range: 1 to 2
31
-1 [rotations]
Refer to Chapter 8 Absolute Position Detection of Machine Controller MP920
Use’s Manual: Design and Maintenance (SIEZ-C887-2.1) for details.
99999
27
Positive Software
Limit (SLIMP)
Set the positions at which the software limit function is to operate on the machine
coordinate system.
• Setting range: 1 to 2
31
-1 [reference units]
Whether or not the software limits are used is set in bit 7 and bit 8 of the Servo
Controller Function Selection Flags at fixed parameter no. 17.
With the software limits, the upper and lower limits of the range of movement for
the machine system are set at fixed parameters and the operating range is con-
stantly monitored by the controller.
2147483647
29
Negative Software
Limit (SLIMN)
-2147483648
31
Zero Point Return
Method
(ZRETSEL)
Set the zero point return method when returning to the zero point
(ZRET) using OW20: Motion Command Code.
Refer to Zero Point Return Method on the next page for details.
0
(DEC +
Phase-C
pulse)
32
Backlash
Compensation
Set the backlash compensation in reference units when the Backlash Compensa-
tion Selection (bit 6 of the Servo Controller Function Selection Flags at fixed
parameter no. 17) is set to enabled.
0
(Not valid)
33
Not used.
−
−
35
Not used.
−
−
36
Bias Speed for the
Exponential Acceler-
ation/Deceleration
Filter
(EXPBIAS)
Set the bias speed for exponential acceleration/deceleration with bias.
Note: This parameter is valid only for SVA-02A (2-axis) Modules.
0
(Not valid)
Table 5.5 Motion Fixed Parameters (cont’d)
No.
Name
Description
Factory
Setting
0
POSMAX
0
°
90
°
180
°
270
°
Forward direction
overtravel
Software limit
(lower limit)
Software limit
(upper limit)
Reverse direction
overtravel
(Range of movement
for the machine)