Mitsubishi Electric Melsec-F FX3GC Series User Manual page 148

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
6) CLEAR signal output
This instruction can output the CLEAR signal after stopping at the origin.
If it is necessary to output the CLEAR signal at the completion of zero return, turn on the "CLEAR signal
output function enable" relay (see the following table).
Use an FX
output device.
a) If it is not necessary to use the CLEAR signal device specification function, or if an FX
Ver. 2.20 is used.
Pulse output
destination device
D
D
D
D
b) If it is necessary to use the CLEAR signal device specification function:
Turn on the "CLEAR signal device specification function enable" relay to specify the CLEAR signal
output device (output Y) for the pulse output destination device using the CLEAR signal device
specification register.
Pulse output
destination device
D
D
D
D
7) Zero return speed
Use the devices shown in the following table to set the zero return speed. Be sure to set the zero return
speed so that the relation with the other speeds is "bias speed  zero return speed  maximum speed".
- If "zero return speed > maximum speed", the operation will be performed at the maximum speed.
Pulse output
destination device
D
1
D
1
D
1
D
1
8) Creep speed
Use the devices shown in the following table to set the creep speed. Be sure to set the creep speed so
that the relation with the other speeds is "bias speed  creep speed  maximum speed".
Pulse output
destination device
D
1
D
1
D
1
D
1
B - 104
PLC User's Manual - Positioning Control Edition
PLC Ver. 2.20 or later and FX
3UC
Status of "CLEAR
signal output function
enable" relay
M8341=ON
= Y000
1
M8351=ON
= Y001
1
M8361=ON
= Y002
1
M8371=ON
= Y003
1
 For an example program, refer to Subsection 4.3.4 or Subsection 4.5.1.
Status of "CLEAR
signal output function
enable" relay
M8341=ON
= Y000
1
M8351=ON
= Y001
1
M8361=ON
= Y002
1
M8371=ON
= Y003
1
Bias speed
D8342
= Y000
D8352
= Y001
D8362
= Y002
D8372
= Y003
Bias speed
D8342
= Y000
D8352
= Y001
D8362
= Y002
D8372
= Y003
6 Mechanical Zero Return - DSZR/ZRN Instruction
6.2 DOG Search Zero Return (DSZR Instruction)
/FX /FX /FX PLC to specify the CLEAR signal
3S 3G 3GC 3U
Status of "CLEAR signal
device specification function
enable" relay
M8464=OFF
M8465=OFF
M8466=OFF
M8467=OFF
Status of "CLEAR signal
device specification function
enable" relay
M8464=ON
M8465=ON
M8466=ON
M8467=ON
Zero return speed Maximum speed
D8347,D8346
D8357,D8356
D8367,D8366
D8377,D8376
Creep speed Maximum speed
D8345
D8355
D8365
D8375
PLC below
3UC
CLEAR signal device
number
Y004
Y005
Y006
Y007
CLEAR signal device
specification register
*1
D 8464
D 8465
D 8466
D 8467
Initial value
D8344,D8343
D8354,D8353
50,000(Hz)
D8364,D8363
D8374,D8373
Initial value
D8344,D8343
D8354,D8353
1,000(Hz)
D8364,D8363
D8374,D8373