Zeroing - Mitsubishi Electric MELSERVO-J2S-S061 Specifications And Instruction Manual

5.5 Zeroing

5.5.1 Stopper type zeroing
In stopper type zeroing, a machine part is pressed against a stopper or the like by jog operation, manual
pulse generator operation or the like to make a home position return and that position is defined as a
home position.
(1) Signals, parameters
Set the input signals and parameters as follows:
Item
Manual zeroing mode
selection
Stopper type zeroing
Zeroing direction
Zeroing speed
Zeroing position data
Stopper time
Stopper type zeroing torque
limit
Zeroing acceleration time
constant
(2) Timing chart
Automatic/manual
ON
mode selection
OFF
(MDO)
ON
In position (INP) OFF
ON
Rough match
OFF
(CPO)
ON
Zeroing
OFF
completion (ZP)
Point table No.1
Acceleration time constant
Servo motor speed
ON
Forward rotation
OFF
start (ST1)
ON
Reverse rotation
OFF
start (ST2)
ON
Limiting
OFF
torque (TLC)
Torque limit value
The address on completion of zeroing is the value automatically set in parameter No.42 (zeroing
position data).
Parameter No.14 (STC) will be disabled during zeroing.
Device/Parameter Used
Automatic/manual selection signal (MDO)
Point table No. selection 1 (DI0)
Point table No. selection 2 (DI1)
Parameter No.8
Parameter No.8
Parameter No.9
Parameter No.42
Parameter No.44
Parameter No.45
Point table No.1
Zeroing speed
Parameter No.9
5ms or less
10ms or more
Stopper time
Parameter No. 44
Parameter No. 28 Parameter No. 45
Short MDO-SG (ON).
Open DI0-SG (OFF).
Open DI1-SG (OFF).
3 : Stopper type zeroing is selected.
Refer to the parameter No.8
Set the speed till contact with the stopper.
Used to set the current position on completion
of zeroing
Time from when the part makes contact with
the stopper to when zeroing data is obtained to
output zeroing completion (ZP)
Set the servo motor torque limit value for
execution of stopper type zeroing.
Use the acceleration time constant of point
table No.1.
Zero address
Parameter No. 42
Stopper
Parameter No. 28
26
Description
BCN-B11127-479*