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Chapter 5 Servo Drive Specifications
5–4
5-3 Overload protection specifications
The servo amplifier has an electronic thermal to protect the servomotor and servo amplifier from
overloads. The operation characteristics of the electronic thermal are shown below.
If overload operation exceeding the electronic thermal protection curve shown below, the overload 1
(alarm 50) will occur. If a current exceeding 95% of the max. current continuously flows for one
second or more due to a machine collision, etc., overload 2 (alarm 51) will occur.
Motor : LM-NP2S, NP2M, NP4S
Servo amplifier : MDS-B-V14L-20, 35
Motor : LM-NP2L, NP4M
Servo amplifier : MDS-B-V14L-45
When operating
When stopped
When operating
When stopped
Time (s) Time (s)