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DOP interface output specifications
Analogue signals
1
Incremental
2 channels V
and V
differential sinusoids in quadrature centred on 2.5 V (90° phase shifted)
1
2
20 µm
(V
+) − (V
−)
1
1
0°
(V
+) − (V
−)
2
2
Reference
45°
(V
+) − (V
−)
0
0
360° (nominal)
The reference output is bi-directionally repeatable.
The differential pulse V
is centred on 45°.
0
1
Only the analogue sine and cosine outputs are functionally safe.
2
For clarity, the inverse signals are not shown.
Original instructions
0.7 to 1.35 Vpp with green
LED indication (readhead)
and 120R termination.
0.8 to 1.2 Vpp
Digital signals
1
Form – Square wave differential line driver to EIA RS422A
Incremental
2
2 channels A and B in quadrature (90° phase shifted)
Signal period
A
B
Reference
2
Z
2
Wide reference
Z
NOTE: Select 'standard' or 'wide' reference at time of ordering, to match the requirements of the
controller being used.
Resolution
Bi-directionally repeatable pulse Z,
duration equal to the resolution
Bi-directionally repeatable pulse Z,
duration equal to the signal period
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