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| MD21 |
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| Download MD21 Spec Sheet |
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High accuracy detector unit for position control
- Generates A/B phase output signal with a resolution of 0.1 µm for feedback to an NC unit and up/down output signal for a display unit.
- Selectable resolution and output pulse width
- Compact design of 32 x 171 x 144 mm / 1.3" x 6.7" x 5.7" (W x H x D) permits the detector to be located in tight spaces as in a switchboard.
- Operable from 5V power supply. With the optional PU20 power supply unit, power for up to 3 axes can be supplied.
- A/B phase signal, up/down signal, zero point signal and alarm signal outputby differential line driver.
Specifications
| Model |
MD21
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| Resolution |
0.1, 0.2 µm selectable
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| Output pulse width |
0.25, 0.5, 1, 2, 2.5, 5, 10 or 20 µs selectable
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| Max. response speed |
See table below
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| Output signal |
A/B phase and up/down output by differential line driver (equivalent to SN75113); both simultaneous
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| Zero point signal |
In synch with scale signal
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| Alarm |
Max. response speed exceeded, cable broken or disconnected, other circuit errors
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| Reset |
Use reset key operation or external input
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| Power supply |
+ 5 V DC + 5% -2%
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| Power consumption |
Max. 3 W
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| Operating temperature |
0 °C to 50 °C / 32 °F to 122 °F
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| Storage temperature |
-10 °C to 70 °C / 14 °F to 158 °F
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| Dimensions |
32 x 171 x 144 mm/ 1.3" x 6.7" x 5.7" (W x H x D)
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| Mass |
0.8 kg/ 1.76 lbs
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Maximum response speed
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Resolution
(µm)
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Output pulse width (µs)
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0.25
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0.5
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1
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2
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2.5
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5
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10
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20
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0.1
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18
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9
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4.5
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2.2
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1.8
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0.8
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0.4
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0.2
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0.2
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30
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18
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9
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4.5
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3.6
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1.8
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0.8
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0.4
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Zero point response speed
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Resolution (µm)
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Response speed (m/min)
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0.1
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0.15
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0.2
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0.3
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