Mitsubishi Electronics MDS-D-SVJ3 ユーザーズマニュアル

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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

(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.

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.

- Magnescale Co., Ltd:   http://www.mgscale.com/mgs/

- HEIDENHAIN CORPORATION:   http://www.heidenhain.de/

SR74
SR84

Not required

1.0

μm

180m/min

0.5

μm

125m/min

0.1

μm

25m/min

0.05

μm

12m/min

LS187
LS487

IBV 101 (10 divisions)

0.5

μm

120m/min

IBV 102 (100 divisions)

0.05

μm

24m/min

IBV 660B (400 divisions)

0.0125

μm

7.5m/min

 

 

 

 

 

 

 

Output circuit

A-phase

B-phase

A, B, Z-phase

Z-phase

A, B, Z-phase

Phase difference

Integer mm

For a scale having multiple Z phases, select the neighboring 
Z phases whose distance is an integral mm.