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Direct Drive Motor Specifications and Instruction Manual
3 Characteristics
3.1 Direct-drive Motor
3.1.1 Overload Protection Characteristics
The servo drive unit has an electronic thermal relay to protect the motor 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 torque is commanded continuously for one second or more due to a
machine collision, etc., overload 2 (alarm 51) will occur.
< MDS-E and MDS-D2 Series >
TM-RBP012C20
10000.0
1000.0
100.0
10.0
1.0
0.1
0
100
Motor current value (rated current value ratio %)
TM-RBP048G20
10000.0
1000.0
100.0
10.0
1.0
0.1
0
100
Motor current value (rated current value ratio %)
TM-RBP105G20
10000.0
1000.0
100.0
10.0
1.0
0.1
0
100
Motor current value (rated current value ratio %)
TM-RBP340J20
10000.0
1000.0
100.0
10.0
1.0
0.1
0
100
Motor current value (rated current value ratio %)
IB-1501068-C
When stopped
When rotating
200
300
400
When stopped
When rotating
200
300
400
When stopped
When rotating
200
300
400
When stopped
When rotating
200
300
400
TM-RBP036E20
10000.0
1000.0
100.0
10.0
1.0
0.1
0
100
500
Motor current value (rated current value ratio %)
TM-RBP105G10
10000.0
1000.0
100.0
10.0
1.0
0.1
0
100
500
Motor current value (rated current value ratio %)
TM-RBP150G20
10000.0
1000.0
100.0
10.0
1.0
0.1
0
100
500
Motor current value (rated current value ratio %)
TM-RBP500J20
10000.0
1000.0
100.0
10.0
1.0
0.1
500
0
100
Motor current value (rated current value ratio %)
22
When stopped
When rotating
200
300
400
When stopped
When rotating
200
300
400
When stopped
When rotating
200
300
400
When stopped
When rotating
200
300
400
500
500
500
500
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