12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE
12 - 25
12.4.3 Torque limit changing dog type homing
POINT
Torque limit changing dog type homing can be used only in the indexer method.
This is a home position return method using an external limit. Deceleration starts at the external limit
detection. The position specified by the first Z-phase signal, or the position of the first Z-phase signal shifted
by the specified home position shift distance is used as the home position.
(1) Device/parameter
Set input devices and parameters as follows:
Item
Device/parameter to be used
Setting
Homing mode selection
MD0 (Operation mode selection 1)
Switch off MD0.
MD1 (Operation mode selection 2)
Switch off MD1.
Home position return
direction
[Pr. PT45 Home position return types]
Select the homing direction with [Pr. PT45]. The
setting is shown as follows:
Address increasing direction: -1
Address decreasing direction: -33
Home position return speed
[Pr. PT05 Home position return speed]
Set the rotation speed specified until an external limit
is detected.
Creep speed
[Pr. PT06 Creep speed]
Set the rotation speed specified after an external limit
is detected.
Home position shift distance
[Pr. PT07 Home position shift distance], [Pr.
PT57 Home position shift distance (extension
parameter)]
Set this item to shift the home position, which is
specified by the first Z-phase signal after the external
limit is detected.
Acceleration time constant/
Deceleration time constant
RT (Second acceleration/deceleration
selection)
1. When RT is turned off
Acceleration time constant: setting value of [Pr.
PC01 Acceleration time constant 1]
Deceleration time constant: setting value of [Pr.
PC02 Deceleration time constant 1]
2. When RT is turned on
Acceleration time constant: setting value of [Pr.
PC30 Acceleration time constant 2]
Deceleration time constant: setting value of [Pr.
PC31 Deceleration time constant 2]
Station home position shift
distance (Note 1, 2)
[Pr. PT40 Station home position shift distance] Set a shift distance of the station home position
(station No. 0) for the home position return completion.
Note 1. The setting of the station home position shift distance is disabled at home position return. Cycling the power will enable the
setting.
2. [Pr. PT40] is enabled as an offset to the position that the home position return is performed. If a larger value than the in-
position range is set to [Pr. PT40], the completion output of positioning will not turn on (short circuit) at the first power on after
home position return.
Summary of Contents for MR-JE-C
Page 33: ...2 SIGNALS AND WIRING 2 16 MEMO ...
Page 37: ...3 STARTUP 3 4 MEMO ...
Page 129: ...6 HOMING MODE 6 36 MEMO ...
Page 169: ...7 HOW TO USE THE POINT TABLE 7 40 MEMO ...
Page 203: ...9 HOW TO USE JOG MODE 9 12 MEMO ...
Page 215: ...11 APPLICATION OF FUNCTIONS 11 8 MEMO ...
Page 307: ...12 WHEN USING WITH A GENERAL PURPOSE INTERFACE 12 92 MEMO ...
Page 309: ...MEMO ...