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Output specifications
Digital output signals - type REF digital output interfaces
Form - Square wave differential line driver to EIA RS422A
†
Incremental
2 channels A and B in quadrature (90° phase shifted)
Signal period
Resolution
A
B
†
Reference
Z
Synchronised pulse Z,
duration as resolution
Wide reference
†
(option C)
Z
Synchronised pulse Z,
duration as signal period
Repeatability of position (uni-directional) maintained within
±10 °C from installation temperature and for speed <250 mm/s
Actuation device A-9541-0037/A-9559-0650
NOTE: Wide reference mark option useful when using long cable
lengths and/or high speed operation to overcome effects of skew
†
Limit
Repeatability <0.1 mm typical
Q
Length of actuating magnet
Asynchronous pulse Q
NOTE: RGH25F readheads and REF interfaces are available
with reference mark or limit switch detection.
Actuation device A-9541-0040/A-9531-0251
RGH25F RGS20 installation guide
P
S
Model
(µm)
(µm)
REF0004
20
5
REF0020
4
1
REF0040
2
0.5
REF0100
0.8
0.2
REF0200
0.4
0.1
REF0400
0.2
0.05
REF1000
0.08
0.02
REF2000
0.04
0.01
REF4000
0.02
0.005
†
†
Alarm
20 ms
minimum
Alarm asserted when:
- <20% signal amplitude
E
- >135% signal amplitude
- Readhead exceeds specified maximum speed
- Signal offset excessive
Asynchronous pulse E
NOTE: 3-state alarm option also available
Set-up
1
Voltage
at X
0
0
Signal level
Setup signal voltage proportional to signal amplitude
Inverse signals not shown for clarity
100%
11
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