5motor control (mctrl) – Lenze 8400 motec User Manual
Page 147

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
147
5
Motor control (MCTRL)
5.10
Parameterisable additional functions
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Limiting the maximum output frequency
The maximum output frequency (
) of the controller is not limited depending on the
switching frequency. Therefore, adapt the maximum output frequency according to our
recommendation:
• In the Lenze setting, the output frequency is limited to the maximum value of 300 Hz.
Carry out further measures:
• If required, deactivate the switching frequency changeover by the heatsink temperature via
.
• 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
.
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.
Maximum output frequency 1
8
---
Switching frequency
≤