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

Page 205

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Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14

205

5

Motor control (MCTRL)

5.9

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:

• 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.

Maximum output frequency 1

8

---

Switching frequency

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