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Estun ETS Series - Page 87

Estun ETS Series
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ETS Series AC Servo User's Manual
- 86 -
Speed
(rpm)
Pn 685
Pn 686
ORG
0rpm
SHOM
Rising edge
Encoder C-pulse
Homing offset distance
Pn 690
*10000
Pn 691
Return to find C-pulse
Begin to counter offset distance after the first C-
pulse is produced when leaving zero posiion.
Type
Signal
Name
Connector Pin
Number
Setting
Meaning
Input
SHOM
Must be allocated by
Pn509,Pn510
ON=(rising edge)
Homing is enabled
OFF(not rising edge)
Homing is disabled
Input
ORG
Must be allocated by
Pn509,Pn510
ON=H
ORG is enabled
OFF=L
ORG is disabled
Input
/HOME
Must be allocated
byPn511
ON=L
Homing completed
OFF=H
·After changing Pn509, Pn510 and Pn511 turn OFF the main circuit and control power supplies and
then turn them ON again to enable the new settings.
(4)Description of Homing Operation
Please set Pn689 according to the actual operation in position control mode. When starting the homing function, the
servomotor will run at the speed of Pn685 when detecting the rising edge of SHOM signal; the servomotor will run at the
speed of Pn686 according to the setting of Pn689.1 when detecting the valid ORG signal.
When input ORG and the encoder C-Pulse is detected, the servo drive will begin to calculate the number of homing offset
pulses. When offset pulses is completed, the servomotor stops and outputs homing completion signal /HOME, then
homing control is completed.
Pn685 (Hitting the origin signal (ORG)) is usually set at high speed, Pn686 (Leaving the origin signal ORG) is usually set
at low speed.
Please be attention that if Pn686 is setting too high, the precision of mechanical zero position will be affected.
After hitting the origin signal ORG, the motor will return to find C-pulse; the figure is shown as below:
Corresponding position:

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