Data-Set Type Mechanical Zero Return - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U
8.1.3

Data-set type mechanical zero return

Use the data-set type mechanical zero return procedure to set the position moved by JOG or manual pulse
generator operation, as a zero-point. Therefore the work piece does not travel at the mechanical zero return
command.
This zero return procedure is frequently used for equipment without a DOG, or for transfer lines without a
mechanical zero-point.
Operation
1) With JOG or manual pulse generator operation, the work piece is moved to the desired zero-point.
2) Turn ON the mechanical zero return command.
3) The current address is set as the mechanical zero-point address in the positioning parameters.
4) The 20SSC-H turns the zero return complete flag to ON.
In the data-set type mechanical zero return mode, the positioning completion flag does not turn ON.
Zero return interlock
enabled/disabled
Mechanical zero-point address
Data-set type mechanical zero
return operation
Forward rotation JOG
Reverse rotation JOG
Mechanical zero return
command
Simultaneous START flag
Manual pulse generator
operation
Current address (user)
Current address (pulse)
Zero return complete
Zero phase passed
Function selection C-4
Note
• The zero return command is not accepted if the zero-point pass signal servo status is OFF.
Before executing zero return, be sure to rotate the servomotor at least once to turn the zero-point pass
signal ON. The zero-point pass signal turns ON when the motor passes the motor reference position signal
(Z-phase).
To execute zero return immediately after power-on, specify "1: Motor Z-phase pass unnecessary after
power-on" (default setting) at servo parameter function selection C-4. With this setting, the zero-point pass
signal turns ON even if the motor does not pass the zero-point (Z-phase).
• With the simultaneous start flag ON, the X-axis mechanical zero return command simultaneously starts the
X and Y-axes mechanical zero return operation.
(The 20SSC-H ignores the Y-axis mechanical zero return command.)
138
→ For the zero return interlock function, refer to Subsection 7.9.10
→ For the parameters, control data and monitor data, refer to Chapter 11
→ For manual pulse generator operation, refer to Section 8.3
→ For the parameters, control data and monitor data, refer to Chapter 11
setting
Operation parameter 2 BFM #14002 b2
Zero return mode
Operation command 1
Operation command 1
Operation command 1
Operation command 1
Operation pattern
selection
Status information
Servo status
Servo parameters
(Advanced setting)
→ For details on the table operation, refer to Chapter 10
→ For jog operation, refer to Section 8.2
BFM Number
X-axis
BFM #14202 b2
BFM #14029,#14028 BFM #14229,#14228
BFM #14031 = K1 BFM #14231 = K1
BFM #518 b4 BFM #618 b4
BFM #518 b5 BFM #618 b5
BFM #518 b6 BFM #618 b6
BFM #518 b10
BFM #520 b6 BFM #620 b6
BFM #1,#0 BFM #101,#100
BFM #3,#2 BFM #103,#102
BFM #28 b3 BFM #128 b3
BFM #63 b0 BFM #163 b0
BFM #15080 BFM #15280
8 Manual Control
8.1 Mechanical Zero Return Control
Data type
Y-axis
Positioning parameters
Positioning parameters
Positioning parameters
Control data
Control data
Control data
Control data
Control data
Monitor data
Monitor data
Monitor data
Monitor data
Servo parameters