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Output specifications
Digital output signals - RGH40T, D, G, X, N, W, Y, H
Form - Square wave differential line driver to EIA RS422A (except limit switch P, Q, Alarm E− and external set-up signal, X)
†
Incremental
2 channels A and B in quadrature (90° phase shifted)
Model
Signal period P
RGH40T
Resolution S
RGH40D
RGH40G
RGH40X
RGH40N
RGH40W
A
RGH40Y
B
RGH40H
†
Reference
Synchronised pulse Z, duration as resolution S.
Repeatability of position (uni-directional)
maintained within ±10 °C from temperature at
time of phasing and for speeds <250 mm/s.
Z
For RGH40N, W, Y, H only Z pulse
re-synchronised at power-up with any one of
the quadrature states (00, 01, 11, 10).
Limit open collector output, asynchronous pulse
Repeatability <0.1 mm typical
P Q
Length of actuating magnet
†
Inverse signal not shown for clarity
RGH40 RESR installation guide
Alarm
RGH40T, D, G and X
P (µm)
S (µm)
Alarm output asserted when <15% signal
40
10
Option
20
5
05
06
8
2
4
1
RGH40N, W, Y and H
Options 61, 62 and 63
1.6
0.4
Single ended line driven output alarm asserted when >150% signal
0.8
0.2
or overspeed
0.4
0.1
3-state output alarm asserted when <15% signal
0.2
0.05
Line driven alarm output
E−
20 ms minimum
3-state alarm output
Differentially transmitted signals forced open circuit for >20 ms when alarm
conditions valid.
Set-up
5 (nom)
Voltage at X
0
signal level
0
50%
Alarm type
single ended line driven output
3-state output
Between 50% and 70%
signal level X is a duty cycle.
Time spent at 5 V increases
with signal level.
At >70% signal level X is
nominal 5V.
70% 100%
Analogue output signals - RGH40A
Incremental 2 channels V
and V
differential sinusoids in quadrature
1
2
(90° phase shifted)
40 µm
0.7 - 1.2 Vpp with green
LED indication and 120 Ω
(V
+) − (V
−)
1
1
termination when signal is
90°
differentially received
(V
+) − (V
−)
2
2
Reference
Differential pulse V
0.8 to 1.2 Vpp
Duration 126° (electrical).
Repeatability of position (uni-directional)
maintained within ±10 °C from
(V
+) − (V
−)
temperature at time of phasing and
0
0
−18°
108°
0°
for speeds <250 mm/s
Limit open collector output, asynchronous pulse
Repeatability <0.1 mm typical
V
V
p
q
Length of actuating magnet
−18° to 108°.
0
13
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