Instruction manual

10 - 1
10. CHARACTERISTICS
10. CHARACTERISTICS
10.1 Overload protection characteristics
An electronic thermal relay is built in the servo amplifier to protect the servo motor and servo amplifier from
overloads. Overload 1 alarm (50) occurs if overload operation performed is above the electronic thermal relay
protection curve shown in any of Figs 10.1. Overload 2 alarm (51) occurs if the maximum current flew
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.
In a machine like the one for vertical lift application where unbalanced torque will be produced, it is
recommended to use the machine so that the unbalanced torque is 70% or less of the rated torque.
When you carry out adhesion mounting of the servo amplifier, make circumference temperature into 0 to 45
,
or use it at 75% or a smaller effective load ratio.
Servo motor Graph
053 13 Fig 10. 1 a HF-MP series
23 to 73 Fig 10. 1 b
053 13 Fig 10. 1 a HF-KP series
23 to 73 Fig 10. 1 b
51 81
52 102 301
Fig 10. 1 b
121 201
152 to 352
Fig 10. 1 c
421
HF-SP series
502
702
Fig 10. 1 d
103 to 203 Fig 10. 1 c HC-RP series
353
503 Fig 10. 1 d
72 Fig 10. 1 c HC-UP series
152
202 352 502 Fig 10. 1 d
52 102 Fig 10. 1 b
152 202 Fig 10. 1 c
HC-LP series
302 Fig 10. 1 d
601 801 12K1 15K1 20K1 25K1
701M 11K1M 15K1M 22K1M
502 702 11K2 15K2 22K2
6014 701M4
Fig 10. 1 d
8014 12K14 15K14 20K14
11K1M4 15K1M4 22K1M4
HA-LP series
11K24
15K24 22K24
Fig 10. 1 e