Lenze 8400 TopLine - Manual (Page 259)

Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
259
5 Motor control (MCTRL)
5.10 Parameterisable additional functions
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Limiting the maximum output frequency
The maximum output frequency ( C00910 ) of the controller 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 controller 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 controller 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 ≤