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

 
 
 

 

 

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The servo drive unit has an electronic thermal relay to protect the servomotor and servo drive unit from 
overloads. The operation characteristics of the electronic thermal relay are shown below when standard 
parameters (SV021=60, SV022=150) are set. 
If overload operation over the electronic thermal relay protection curve shown below is carried out, 
overload 1 (alarm 50) will occur. If the maximum current is commanded at 95% or higher continuously 
for one second or more due to a machine collision, etc., overload 2 (alarm 51) will occur.