Delta Electronics AC Servo Drive ASDA-AB Uživatelský manuál Strana 249

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Chapter 11 Specifications ASDA-A User Manual
4th Edition 2005/11/30, HE03 © DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
11-8
11-5 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 (100W~750W)
100 120 140 160 180 200 220 240 260 280 300
10
0
10
1
10
2
10
3
10
4
Load (% rated torque)
Operating Time (seconds)
Load
Operating
Time
120% 263.8s
140% 35.2s
160% 17.6s
180% 11.2s
200% 8s
220% 6.1s
240% 4.8s
260% 3.9s
280% 3.3s
300% 2.8s
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