Clear Signal Output (Dszr/Zrn Instruction - Mitsubishi Electric Melsec-F FX3GC Series User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
4.3.4

CLEAR Signal Output (DSZR/ZRN Instruction)

The DSZR instruction (zero return instruction with DOG search function) and ZRN instruction (zero return
instruction) can stop the workpiece at the origin, and can output the CLEAR signal.
If it is necessary to output the CLEAR signal after zero return, turn on the "CLEAR signal output function
enable" relay. The following table shows the "CLEAR signal output function enable" relay of each pulse
output destination device (Y000, Y001, Y002 and Y003).
Use an FX
3UC
device.
1. If it is not necessary to use the CLEAR signal device specification function, or if an FX
below Ver. 2.20 is used:
Pulse output
destination
device
Y000
Y001
*1
Y002
*2
Y003
*1. Y002 is not available in FX
*2. Y003 is available only when two high-speed output special adapters are connected to the FX
2. If it is necessary to use the CLEAR signal device specification function:
Turn on "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
Y000
Y001
*3
Y002
*4
Y003
*3. Y002 is not available in FX
*4. Y003 is available only when two high-speed output special adapters are connected to the FX
When using a high-speed output special adapter:
The output devices initially set for the CLEAR signal of the DSZR/ZRN instruction are the same output
devices as the "direction signal / reverse pulse train (rotation direction signals)" of the high-speed output
special adapters. Be sure to specify output numbers of other transistor outputs using the CLEAR signal
device specification function.
B - 60
PLC User's Manual - Positioning Control Edition
PLC Ver. 2.20 or later and FX
Status of "CLEAR
signal output
function enable"
relay
M8341=ON
M8351=ON
M8361=ON
M8371=ON
PLC (14-point and 24-point type) and FX
3G
Status of "CLEAR
signal output function
enable" relay
M8341=ON
M8351=ON
M8361=ON
M8371=ON
PLC (14-point and 24-point type) and FX
3G
For the CLEAR signal device specification method, refer to the next page.
/FX /FX /FX
3S 3G 3GC 3U
For operation of DSZR instruction, refer to Section 6.2.
For operation of ZRN instruction, refer to Section 6.3.
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
4 Before Programming
4.3 Various Special Relays for Operation Commands
PLC to specify the CLEAR signal output
CLEAR signal device
number
Y004
Y005
Y006
Y007
/FX PLC.
3S 3GC
CLEAR signal device number
CLEAR signal device Initial value (CLEAR
specification register
D8464
D8465
D8466
D8467
/FX PLC.
3S 3GC
PLC
3UC
PLC.
3U
signal device)
-
-
-
-
PLC.
3U