Mitsubishi Electric MDS-D-SPJ3 Specification Manual page 124

(c) Rectangular wave output
Select a relative position detector with an A/B phase difference and Z-phase width at the maximum
feedrate that satisfies the following conditions.
Use an A, B, Z-phase signal type with differential output (RS-422 standard product) for the output signal
Output circuit
(Note)The above value is minimum value that can be received normally in the servo drive unit side.
In an actual selection, ensure margin of 20% or more in consideration of degradation of electrical wave
and speed overshoot.
< Example of scale specifications >
The example of using representative rectangular wave scale is shown below.
For specifications of each conversion unit and scale and for purchase, Contact each corresponding
manufacture directly.
Manufacturer
Magnescale Co., Ltd
HEIDENHAIN
<Contact information about machine side detector>
- Magnescale Co., Ltd: http://www.mgscale.com/mgs/
- HEIDENHAIN CORPORATION: http://www.heidenhain.de/
Phase difference
A, B, Z-phase
A-phase
A, B, Z-phase
B-phase
Z-phase
For a scale having multiple Z phases, select the neighboring
Z phases whose distance is an integral mm.
Detector type Interface unit type
SR74
Not required
SR84
IBV 101 (10 divisions)
LS187
IBV 102 (100 divisions)
LS487
IBV 660B (400 divisions)
MDS-D-SVJ3/SPJ3 Series Specifications Manual
Integer mm
Minimum detection Tolerable maximum
resolution
1.0μm
0.5μm
0.1μm
0.05μm
0.5μm
0.05μm
0.0125μm
5-1 Servo options
speed
180m/min
125m/min
25m/min
12m/min
120m/min
24m/min
7.5m/min
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