3 overcurrent operation for servo drives 9400, 11 drive dimensioning – Lenze DSD User Manual
Page 349

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
349
11
Drive Dimensioning
11.6
Inverters
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11.6.1.3
Overcurrent operation for Servo Drives 9400
The inverters are designed for two overcurrent modes:
• Cycle of 5 s
• Load period of 0.5 s with peak current
• Recovery time of 4.5 s with limited current
• Cycle of 3 min
• Load period of 1 min with peak current
• Recovery time of 2 min with limited current
After a load period with a peak current a recovery time has to follow. During the recovery time the
current may not exceed the value specified.
The values specified refer to the rated output current I
N,out
.
[11-20] Overcurrent capability for Servo Drives 9400 at 45 °C
Cycle of 5 s
Peak current for 0.5 s
Max. current during the recovery time for 4.5 s
Cycle of 180 s
Peak current for 60 s
Max. current during the recovery time for 120 s
t
0
100
2
0
1
3
0.5 s
4.5 s
60 s
120 s