Lika IF52, User Manual, Page: 43 / 60

IF52
9 - Parameter settings
9.1 Display settings
X Operand
/ Operand
+/- Operand
These operands are used to convert the position information transmitted by the
encoder into other engineering units like millimetres or inches etc. These
operands only affect the serial readout of encoder data, not the parallel data
output.
With the settings
X Operand
= 1.0000
/ Operand
= 1.0000 and
+/- Operand
= 0.0000
the serial readout value equals to the encoder value.
Serial Readout SSI encoder data = x
[
xOperand
/Operand
]
+ +/-Operand
9.2 General settings
Round Loop
As a general rule, this setting should be set to 00000. Any other settings will
replace the real encoder position with a repeating cycle count.
EXAMPLE
When we set this register to 2,048, the internal position register will only move
in a range between 0 and 2,047. When we exceed the lower limit zero with
reverse direction, again 2,047 will appear. When we exceed the upper limit
2,047 with forward direction, we restart at 0 again.
The zero position of the round loop counter can be set in the register
SSI Offset
which allows settings ranging between 0 and the Round Loop value. Register
Direction
allows to set the counting direction of the round loop counter (0 =
up, 1 = down).
The following drawings explain the coherence among original SSI encoder data,
Round Loop
setting,
SSI Offset
and
Direction
registers.
MAN IF52 I_E 1.1.odt 9 - Parameter settings 43 / 60