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Lenze 8400 - Page 261

Lenze 8400
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Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 261
5 Motor control (MCTRL)
5.10 Parameterisable additional functions
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Limiting the maximum output frequency
The maximum output frequency (C00910
) of the inverter is not limited depending on the switching
frequency. Therefore, adapt the maximum output frequency according to our recommendation:
At a switching frequency of 4 kHz, for instance, 500 Hz for the maximum output frequency
should not be exceeded.
Carry out further measures:
If required, deactivate the switching frequency changeover by the heatsink temperature via
C00144
.
If required, ensure that the changeover threshold of the inverter output current to the next
switching frequency below will not be exceeded. If required, select a constant switching
frequency in C00018
.
Operation at an ambient temperature of 45°C
The inverter is designed so that operation at an ambient temperature of 45° C without derating is
permissible at a switching frequency of 4 kHz.
Note!
If the servo control mode (SC) is selected, the drive assumes the 'maximum current
limitation' state if the maximum output frequency (C00910
) has been reached.
Defining current and speed limits
( 154)
Maximum output frequency
1
8
---
Switching frequency

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