2 operation with increased rated power, Operation with increased rated power, 5motor control (mctrl) – Lenze 8400 StateLine User Manual

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Motor control (MCTRL)

5.9

Parameterisable additional functions

206

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

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5.9.2

Operation with increased rated power

Under the operating conditions described here and under continuous operation, the controller can

be operated with a higher power motor (increased rated power). The remaining overload capacity

of the drive system (for 60 s/3 s) is reduced accordingly to approx. 120 %/160 %.
Typical applications stand out due to low dynamic requirements, e.g. pumps and fans, general

horizontal materials handling technology and line drives.

Required parameterisation
Operation at increased rated power requires the following settings to be made particularly for the

V/f characteristic control (VFCplus), but also for all other types of control:



The controllers which can be operated at an increased rated power are listed in the 8400

hardware manual in the rated data. The hardware manual is stored in electronic form on

the data carrier which is supplied with the 8400 controller.



Stop!

Operation at increased rated power is only permitted ...

• with the controllers listed in the 8400 hardware manual for this type of operation in

the stated mains voltage range.

• at switching frequencies of 2 kHz and 4 kHz.
• at a max. ambient temperature of 40 °C.
• with the types of installation stated in the 8400 hardware manual.
• with the fuses, cable cross-sections, mains chokes, and filters as required in the 8400

hardware manual for this operation.

• after parameterisation according to the specifications below.

Parameter

Info

Required setting

C00016

VFC: Vmin boost

adapt to motor

(reduce)

C00018

Switching frequency

1: 4 kHz var./drive-opt.