|
Basic Micro-Scale assembly and mounting
dimensions
Electrical Specifications
| Parameter |
Basic
MicroScale Specification |
| Light Source |
LED
(light-emitting diode) |
| Operating Voltage (Vdc) |
5.0 ± 0.25
<= 50mV Ripple |
| Operating current (Max. mA) |
<= 80 |
Output Signals
Incremental |
Signal Type
(see Figure) |
Two sinusoidal
channels A and B,
in 90° quadrature |
| Amplitude Ratio |
1.0 ± 0.1 |
| Duty Cycle |
180 ± 18 |
| Phase |
90 ± 10 |
Output Signal
Reference Mark |
Position |
Maximum
positive FTO current flow from FTO+ w/ positive equal current flow from
0 & 90 |
| |
7-16 µA |
| Signal Levels-
Incremental |
TTL-level |
| Signal Levels - Reference Mark |
2-8 µA |
| Interpolation Error (m) |
< = ± 0.5 |
| *Reading head only |
|
Wire colors and output signals
| Number |
Signal |
Color |
| 1 |
B- |
Red |
| 2 |
A- |
Yellow |
| 3 |
R- |
Gray |
| 4 |
VCC |
Brown |
| 5 |
GND |
White |
| 6 |
B+ |
Blue |
| 7 |
A+ |
Green |
| 8 |
R+ |
Pink |
Applicable with optional output wires
Interconnect board
Mechanical Specifications
| Parameter |
Specification |
| Grating Pitch (m) |
20.0 |
| Scale Medium |
Light Transmission through
chrome-coated glass |
Accuracy (at 20° C)
µm, ±, in any 1000mm |
±3, ±5 |
| Slew Speed (in./sec.) |
>= 40 |
Force required to move
reading head (oz) |
<=2 |
Operating Environment:
Temperature (°C)
Humidity |
0 to 40
25% to 95% (non-condensing) |
Storage Environment:
Temperature (°C)
Humidity |
- 40 to 65
20% to 95% (non-condensing) |
| Max. Cable/Head wire length (ft) |
20
28 AWG Pwr, 30 AWG Signal
13 pF/ft, 95 /1000 ft, Polypropylene |
| Reference pulse interval |
100mm |
| Reading head mass W/o output wires (gm) |
4.5 |
| Scale mass w/ mounting spar (gm) |
2.7 / 25mm |
| Glass only mass (gm) |
0.72 / 25mm |
Analog Output Signals
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