Overload Characteristics; Overload Protection Function; Occasion Of Overload; Chart Of Load And Operating Time - Delta Electronics AC Servo Drive ASDA-AB User Manual

Chapter 11 Specifications|ASDA-AB Series

11.4 Overload Characteristics

Overload Protection Function

Overload protection is a built-in protective function to prevent a motor from overheating.

Occasion of Overload

1. Motor was operated for several seconds under a torque exceeding 100% torque.
2. Motor had driven high inertia machine and had accelerated and decelerated at high frequency.
3. Motor UVW cable or encoder cable was not connected correctly.
4. Servo gain was not set properly and caused motor hunting.
5. Motor holding brake was not released.
Chart of load and operating time (ECMA-C30401
1000
100
10
1
0.1
0 50
11-8
100 150 200
Load (%) rated torque
)
250 300
Operating
Load
Time
120% 139.335s
140% 27.585s
160% 14.235s
180% 8.9625s
200% 6s
220% 4.4925s
240% 3.2925s
260% 2.58s
280% 2.07s
300% 1.6125s
Revision January 2009