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Motor Technology |
GEL 220/221
Magnetic Incremental
Linear Measuring Scale
06/98
Motor Technology Ltd.
Motec House, Chadkirk Ind. Est., Romiley, Stockport, Cheshire SK6 3LE, ENGLAND
Tel. +44(0)161 427 3641 Fax. +44(0)161 427 1306 Web. www.motec.co.uk Email. [email protected]
Design, Function
Technical Data
Design and Function
The linear measuring scales consists of a hard chrome-plated
steel rod and an enclosed plastic measuring head made from
durethan bkv 30h6011. They differ in the obtainable resolution
of 0.1 mm for the GEL 220 and 0.01 mm for the GEL 221.
The distance is measured through the housing wall, the
measuring system operating with semiconductors which are
controlled by magnetic fields.
Signal pattern VN
Signal pattern V consists of two sinusoidal signals which are
displaced by 90° and converted into square waves. These are
output on two channels. The reference signal is output on the
third channel, with its position and length being defined by the
output signal. The outputs are designed as push-pull stages
and they are sustained short-circuit-proof.
Technical data according to DIN 32876/32878
GEL 220 GEL 221
stretching co-efficient
12 µm/(K . m)
measuring force
3N
nominal measuring speed
2 m/s
max. measuring speed
8 m/s
4 m/s
resolution
0.1 mm 0.01 mm
tolerance per m
0.1 mm 0.05 mm
incremental deviation
0.03 mm 0.003 mm
Signal pattern VN
operating voltage UB= 10 ... 35 V
signal voltage US= 10 ... 35 V
0°
90°
N
after
four edge-
evaluation
repeatability
position error upon reversal
operating treshold
max. pulse frequency
power
consumption
(R
L
=∞)
ambient temperature range
according to DIN 32876
operating temperature range
according to DIN 32876
0.01 mm 0.002 mm
0.01 mm 0.002 mm
0.135 mm 0.016 mm
200 kHz
1.1 W
0 °C ... + 70 °C (standard)
-20 °C ... + 85 °C (option)
-20 °C ... + 85 °C
Signal pattern TN, UN, XN
Both pulse signals of V are additionally output as inverse
signals. This also applies to the reference signal. The output
signals of TN and UN are RS-422-A and RS 485 compatible.
signal
pattern
TN
UN
XN
operating voltage
UB
5 V + 5%
10 ... 35 V
10 ... 35 V
signal voltage
US
5V
5V
10 ... 35 V
0°
0°
TN
90° XN
90° UN
storage temperature range
according to DIN 32876
protection class according to
DIN 40050
vibration protection according
to IEC 68 part 2-27
frequency range
peak acceleration
frequency cycles
shock protection
according to IEC
insulation strength acc. to
DIN 57660 part 500 (8.2.2)
or VDE 0113 (13.1)
EMC
(when observing the
installation instructions)
electromagnetic emissions
electromagnetic immunity
-40 °C ... + 105 °C
IP 66
10 ... 2,000 Hz
100 m/s2
10
1,000 m/s2
duration 11 ms
Ri > 1 MΩ, at a test
voltage of 500 V
EN 50081-1
EN 50082-2
N The linear measuring scale is in strict conformity with
N
Directive EMC 89/336/EEC of the European Union and is
therefore certified by the CE mark.
2 GEL 220
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