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

 
 
 

 

 

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The servo drive unit has internal electronic gears. The command value from the NC is converted into a 
detector resolution unit to carry out position control. The electronic gears are single gear ratios calculated 
from multiple parameters as shown below. However, each value (ELG1, ELG2) must be less than 32767. 
If the value overflows, the initial parameter error (alarm 37) or error parameter No. 101 (2301 with 
M60S/E60 Series NC) will be output. 
If an alarm occurs, the mechanical specifications and electrical specifications must be revised so that 
the electronic gears are within the specified range. 

 

ELG1 

PC2×RNG1 

Reduced fraction of 

ELG2 

= 

PC1×PIT×IUNIT 

(reduced fraction) 

 

IUNIT = 2/NC command unit (

m) 

1

m : IUNIT = 2,    0.1m : IUNIT = 20 

 

When the above is calculated, the following conditions must be satisfied. 

ELG1 

 32767 

ELG2 

 32767 

 
 

PGNX 

PC2×RNG2×PGN1

Reduced fraction of 

PGNY 

=

PC1×RNG1×30 

(reduced fraction)

 

 

When the above is calculated, the following conditions must be satisfied. 

PGNX 

 32767 

PGNY 

 32767 

 

And, 

PGNXsp 

PC2×RNG2×PGN1sp 

Reduced fraction of

 

PGNYsp 

=

PC1×RNG1×30 

(reduced fraction)

 

 

When the above is calculated, the following conditions must be satisfied. 

PGNXsp 

 32767 

PGNYsp 

 32767 

 

 

If the electronic gear value in the drive unit overflows, alarm 37 or error 
parameter No. 101 (2301 with M60S/E60 Series NC) will be output.