Chapter 10 Characteristics - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

10
CHARACTERISTICS
For the characteristics of the linear servo motor and the direct drive motor, refer to the following.
Page 489 Characteristics
Page 508 Characteristics
10.1
Overload protection characteristics
An electronic thermal is built in the servo amplifier to protect the servo motor, servo amplifier and servo motor power wires
from overloads.
[AL. 50 Overload 1] occurs if overload operation performed is above the electronic thermal protection curve shown in the
following section. [AL. 51 Overload 2] occurs if the maximum current is applied continuously for several seconds due to
machine collision, etc. Use the equipment on the left-hand side area of the continuous or broken line in the graph.
Page 313 Electronic thermal protection characteristics
When unbalanced torque is generated, such as in a vertical lift machine, the unbalanced torque of the machine should be kept
at 70% or lower of the motor's rated torque.
This servo amplifier has solid-state servo motor overload protection. (The servo motor overload current (full load current) is
set on the basis of 120% rated current of the servo amplifier.)
The following table shows combinations of each servo motor and graph of overload protection characteristics.
Rotary servo motor
HG-KR HG-MR
053 053
13 13
23 23
43 43
73 73
 
 
 
 
 
HG-SR HG-UR
 72

51
81
52
102
121 152
201 202
152
202
301
352
421 352
502 502
702
 
524 
1024

1524
2024
3524
HG-RR HG-JR
 
*1

53
73
103
*1
103 73
*1
153 103
*1
203 153
*1
203
353
*1
353 353
503 601
701M
*1
503
703

801
12K1
15K1
20K1
25K1
11K1M
15K1M
22K1M
903
*1
 534
734
1034
*1

734
*1
1034
*1
1534
*1
2034
3534
10.1 Overload protection characteristics
Graph of overload protection
characteristics
Characteristics a
Characteristics b
Characteristics c
Characteristics d
Characteristics e
Characteristics b
Characteristics c
10 CHARACTERISTICS
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