OPERATION 8. HOW TO USE APPLIED FUNCTIONS (PARAMETER)
8-11. Selecting Function of the Output Contents (Current Position Value / Speed)
This method is available for VS-5FD, VS-5FD-1, VS-5FX, and VS-5FX-1.
The output contents of the BCD output connector (A10 to A20 pin) is selectable either current position value output or
speed output.
The machine’s rotation position (angle) will output by BCD code or g
ray code (720-division), if the current position value
output is selected.
The machine’s rotation speed will output by the binary code, if the speed output will be selected.
This function sets by the parameter No. 04 (Contents of BCD output connector).
● Parameter list
No. Name Description Setting range
Initial
value
setting procedure
04
Contents of
BCD output
connector
Selects the output contents.
-
Current position value output (BCD,
gray code (720-division))
- Speed output (binary code)
The speed output can select the
output resolution.
0: Current position value BCD
1: Speed binary
0 to 7FF Hex (0 to 2047 r/min)
Unit: 1 r/min
2: Speed binary
0 to 7FF Hex (0 to 4094 r/min)
Unit: 2 r/min
3: Gray code (720-division) of
the current position value
Updating cycle: 0.352 to
140.6ms
Latch pulse output: enable
HOLD input: enable
4: Gray code (720-division) of
the current position value
(High speed)
Updating cycle: 0.176ms
Latch pulse output: disable
0
8-1-1
8-1-2
POINT
The relation between the current position value(decimal notation) and gray code (720-division) is indicated below.
position
value(decimal
Gray code (720-division)
Binary code for gray code
(720-division)
( ): decimal notation
The procedure of the conversion from the gray code (720-division) to the current position value (decimal notation)
is indicated below.
① Convert the gray code (720-division) into the binary code.
② Convert the binary code in procedure ① into the decimal notation.
③ Subtract 152 (surplus) from decimal notation in procedure ②.
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