23
TONiC RESM20 angle encoder system installation guide
Incremental
2 channels V
1
and V
2
differential sinusoids in quadrature centred on 1.65 V (90° phase shifted)
Bi-directionally repeatable
Differential pulse V
0
centred
on 45°
Reference
20 µm
45°
(V
1
+)−(V
1
−)
(V
2
+)−(V
2
−)
(V
0
+)−(V
0
−)
0.8 to 1.2 Vpp
360° (nominal)
0°
Voltage at V
X
3.3 (nom)
50%
70%
100%
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.
0.7 to 1.35 Vpp with Green
LED indication, (readhead)
and 120R termination.
Differential signals V
0
+ and V
0
−
centred on ~1.65 V
NOTE:
Ti0000A00V centred
on 2.5 V
Output specifications
(continued)
Analogue output signals
Limits
Open collector output, asynchronous pulse
Ti0000 interfaces only
Repeatability < 0.1 mm
Length of limit actuator
V
p
V
q
Active high
Active low
V
p
V
q
Length of limit actuator
NOTE:
Ti0000 interface contains a transistor to invert the readhead’s ‘active low’ signal to give an
‘active high’ output.
Repeatability < 0.1 mm
Readhead only
Set-up*
* Set-up signals as shown are not present during calibration routine.
Signal level
0