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Output specifications
Digital output signals
Form - Square wave differential line driver to EIA RS422A (except limits P and Q)
Incremental
…
2 channels A and B in quadrature
(90° phase shifted)
Signal period P
Resolution S
A
B
Reference
…
Z
Synchronised pulse Z, duration as resolution
…
Wide reference
Synchronised pulse Z,duration as signal period
Z
NOTE: Select 'standard' or 'wide' reference at time of ordering, to match the requirements of the controller being used.
Limits Open collector output, asynchronous pulse
Active high
Repeatability
<0.1 mm
P Q
~
Length of limit actuator
*
Set-up
1
Voltage
at X
0
0
Signal level
Model
P (µm)
S (µm)
DOP0004
20
5
DOP0020
4
1
DOP0040
2
0.5
0.8
DOP0100
0.2
DOP0200
0.4
0.1
DOP0400
0.2
0.05
DOP1000
0.08
0.02
DOP2000
0.04
0.01
DOP4000
0.02
0.005
DOP10KD
0.008
0.002
DOP20KD
0.004
0.001
or
Active low
Repeatability
<0.1 mm
P Q
~
Length of limit actuator
Setup signal voltage proportional to incremental signal amplitude
*
Set-up signal as shown is not present during calibration routine
100%
Analogue output signals
NOTE: Analogue signals are also available direct from all TONiC readheads
Incremental 2 channels V
and V
differential sinusoids in quadrature
1
2
(90° phase shifted)
20 µm
0.7 to 1.35 Vpp with green
LED indication (readhead)
(V
+)-(V
-)
1
1
and 120R termination.
0°
Centred on 2.5 V
(V
+)-(V
-)
2
2
Reference
0.8 to 1.2 Vpp
45°
Bi-directionally repeatable
Differential pulse V
(V
+)-(V
-)
360° (nom)
0
0
centred on 45°
Alarm
…
Asynchronous pulse
E
Alarm asserted when signal level is less than 20% or greater than 135%.
Alarm is also asserted if readhead speed is too high for reliable operation.
>15 ms
or 3-state alarm (option)
Differentially transmitted signals forced open circuit for >15 ms when alarm conditions valid.
…
Inverse signals not shown for clarity
0
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