YASKAWA JEPMC-MP2300-Y Series User Manual

9
Absolute Position Detection
9.4.4
Turning ON the Power after Setting the Zero Point
9-20
( 3 ) Saving OL

48 Values at Power OFF
After having set the zero point, save the value of OL

48 before turning OFF the power of
MP2300 so that the value will be written in OL

48 the next time the power is turned ON.
There are two ways to save the Zero Point Offset (OL

48) value. It can be saved through a ladder
program in an M Register backed up by battery or from the MPE720 Parameter Window. These ways
are described below.
Refer to

Method 1: Saving in an M Register with Ladder Program on page 9-11 and

Method 2:
Saving the Zero Point Offset (OL

48) from the MPE720 Parameter Window on page 9-12 for
more details.
9.4.4 Turning ON the Power after Setting the Zero Point
The Zero Point Return (Setting) Completed bit (IB

0C5) will turn OFF when the power supply to
the MP2300 is turned OFF and ON, the communication are interrupted by the power OFF to the
SERVOPACK, or communication are interrupted in any other reason after the zero point has been
set. The Zero Point Return (Setting) Completed bit must therefore be turned back ON when the
power supply is restored.
Use the following procedure.
1.
Turn ON the power supply to the MP2300 (or clear alarms to restart communication).
The offset saved in the M register is stored in OL

48.
2.
Check to see if communication has been synchronized.
Check to see if the Motion Controller Operation Ready bit (SVCRDY) (IB

000) is ON.
3.
Execute the Zero Point Setting (ZSET) motion command by setting OW

08 to 9.

Use this procedure only to turn ON the Zero Point Return (Setting) Completed bit
(IB

0C5). It cannot be used to set the zero point of the machine coordinate system
(OL

48).
9.4.5 Infinite Length Position Control without Simple Absolute Positions
( 1 ) Parameter Settings for Infinite Length Position Control without Simple Absolute Positions
Set the infinite length position control without simple absolute positions by setting the fixed parame-
ters No. 1 bit 0 and bit 9, and No. 30 as shown in the table below when the simple absolute infinite
length position control function cannot be used.
Parameter
Fixed Parameter No.1, Bit 0
(Axis Type)
Fixed Parameter No. 1, Bit 9
(Simple ABS Infinite Axis)
Fixed Parameter No. 30
(Encoder Type)
Setting
1: Infinite length axis 0: Disabled 1: Absolute encoder

YASKAWA JEPMC-MP2300-Y Series Specifications

General

Brand	YASKAWA
Model	JEPMC-MP2300-Y Series
Category	Controller
Language	English