Mitsubishi Electric MELSEC FX Series - Page 548

7 Applied Instructions
7.14 Positioning Control
546
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
5) While zero return, the numeric values of the current value registers (Y000: [D8141, D8140], Y001:
[D8143, D8142]) move in the decreasing direction. (FX
1S, FX1N, FX1NC PLCs)
When zero return in reverse direction, please control the output relay (Y) wired as "rotating direction
signal" by the program in the following procedure.
1) Set (ON) Y
 (rotating direction signal).
2) Execute zero return instruction.
3) Reset (OFF) Y
 (rotating direction signal) by execution complete flag (M8012) of zero return
instruction.
6) Applicable devices are limited.
S1: FX
3U, FX3UC PLCs only are applicable, index (V, Z) decoration is disabled.
S2: FX
3U, FX3UC PLCs only are applicable.
S3: FX
3U, FX3UC, FX3G PLCs only are applicable.
S4: <FX
3U, FX3UC, FX3G PLCs>
Please specify Y000, Y001, Y002
*1
of transistor output of basic unit, or Y000, Y001, Y002
*3
, Y003
*3
of high speed output special adapter
*2
.
*1 Y002 cannot be used in the 14-point type or 24-point type of FX
3G PLC.
*2 High speed output special adapter can be connected only in FX
3U PLC.
*3 When using Y002, Y003 in high speed output special adapter, a second high speed output
special adapter is needed.
Points
• When using FX3U PLC of relay output type, high speed output special adapter is needed.
• The output of high speed output special adapter is a differential line driver.
<FX
1S, FX1N, FX1NC PLCs>
Specify Y000 or Y001.
As the output of the PLC, please use the transistor output.
7) Specify the speed of return zero point in .
The setting range is as follows.
a) In the case of 16-bit operation
•FX
3U, FX3UC, FX3G PLCs
10 to 32,767 (Hz)
•FX
1S, FX1N PLCs
10 to 32,767 (Hz)
•FX
1NC PLC
10 to 10,000 (Hz)
b) In the case of 32-bit operation
•FX
3U, FX3UC, FX3G PLCs
•FX
1S, FX1N PLCs
10 to 100,000 (Hz)
•FX
1NC PLC
10 to 10,000 (Hz)
Pulse output destination Setting range
FX3U PLC High speed output special adapter 10 to 200,000 (HZ)
FX3U, FX3UC, FX3G PLCs Basic unit (transistor output) 10 to 100,000 (HZ)