Mitsubishi Electronics MDS-R 사용자 설명서

 
 
 

 

 

4 - 8

4-2  Machine side detector 

 
In MDS-R series, the relative position specifications and rectangular wave output linear scale are 
available. 
The machine side detectors are all special order parts, and must be prepared by the user. 
 

Select a machine side relative position detector that has specifications that are correspond to the 
following output signal.  
 
Compatible rectangular wave output specifications 
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. 

 

 

Phase difference 

Z-phase 

0.1

s or more 

A-phase 

Integer mm

B-phase 

0.1

s or 

more 

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

Output circuit 

A, B, Z-phase 
 
 
 
A, B, Z-phase 

 

 

(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 oblong save scale is shown below.

 

For specifications of each conversion unit and scale and for purchase, contact each corresponding 
manufacture directly. 
 

conversion unit 

Scale Type 

Manufacturer 

Minimum resolution 

Maximum speed 

1μm 150m/min 

0.5μm 120m/min 

0.1μm 24m/min 

SR33 CN33 SONY 

0.05μm 12m/min 

1μm 120m/min 

IBV610 

0.5μm 120m/min 

IBV650 0.1μm 48m/min 

LS186/LS486 

HEIDENHAIN 

0.1μm 60m/min 

IBV660B 

0.05μm 30m/min