Renishaw ATOM User Manual

69
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Output specications
Analogue output signals
All ATOM readheads and Ri and Ti analogue interfaces.
Incremental 2 channels V
1
and V
2
differential sinusoids in quadrature, centred ~ 1.65V
(90 ° phase shifted)
Bi-directionally repeatable.
Differential pulse V
0
centred on 45 °.
Reference
(V
0
+) − (V
0
−)
1Vpp
360 ° (nom)
0.7 to 1.35Vpp with green LED indication
(readhead) and 120R termination.
40 / 20µm
(V
1
+) − (V
1
−)
(V
2
+) − (V
2
−)
0°
Between 50% and 70% signal level, V
X
is a duty cycle.
Time spent at 3.3V increases with incremental signal level.
At >70% signal level V
X
is nominal 3.3V.
Voltage at V
X
3.3V (nom)
50%
70%
100%
0
0
Signal level
Set-up
During normal operation
During CAL routine
Voltage at V
X
Normal operation
Normal operation
Reference
mark
calibration
3.3V
1.65V
0V
Start of
calibration
routine
End of
incremental
calibration
routine
End of
calibration
routine
Incremental
calibration
>70% signal >70% signal
(after CAL)
45 °
Differential signals V
0
+ and V
0
− centred on ~ 1.65V.

Renishaw ATOM Specifications

General

Brand	Renishaw
Model	ATOM
Category	Media Converter
Language	English