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General specifications
Power supply
5 V −5%/+10% Typically 200 mA fully terminated
Ripple 200 mVpp maximum @ frequency up to 500 kHz
Temperature
Storage −20 °C to +70 °C
Operating 0 °C to +70 °C
Humidity
Sealing
Acceleration (system)
Operating 400 m/s², 3 axes
Shock (system)
Operating 500 m/s², 11 ms, ½ sine, 3 axes
Vibration (system)
Operating 100 m/s² max @ 55 Hz to 2000 Hz, 3 axes
Mass
Readhead 8.6 g
Cable 26 g/m
Readhead cable
Maximum readhead
*
cable length
* Extension cables available. Contact your local Renishaw representative for further details.
CAUTION: Renishaw encoder systems have been designed to the relevant EMC standards, but must
be correctly integrated to achieve EMC compliance. In particular, attention to shielding arrangements is
essential.
VIONiC REXM20/REXT20 installation guide
Power from a 5 Vdc supply complying with the requirements
for SELV of standard IEC 60950‑1
95% relative humidity (non‑condensing) to IEC 60068‑2‑78
IP40
Single-shielded, outside diameter 4.25 ±0.25 mm
Flex life > 20 × 10
cycles at 30 mm bend radius
6
UL recognised component
3 m
Ring technical specifications
Pitch
Material
Coefficient of thermal expansion
(at 20 °C)
Temperature
20 µm
303/304 stainless steel
15.5 ±0.5 µm/m/°C
Storage:
–20 °C to +70 °C
Operating:
0 °C to +70 °C
17
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