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

Page 147

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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 (

C00910

) 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

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.

Maximum output frequency 1

8

---

Switching frequency

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