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Accessories (overview)

Mains chokes

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138

EDS700ACBA EN 4.0

11.2 Mains chokes

Mains chokes:

Inductances for damping conducted harmonic interferences which may arise from

reloading the DC bus and the switching frequency of the inverter.

Assignment of mains chokes

Mains choke Power supply module

EZAELN3025B122 E70ACPSx0304x

EZAELN3050B591 E70ACPSx0604x

Technical data

L P

[A] [mH] [W]

EZAELN3025B122 25 1.18 72

EZAELN3050B591 50 0.59 144

Line

Load

L1 L2

L2.1 L3.1

L1.1

ELN3−3PH

Fig. 11−1 Basic circuit diagram

Consider the following criteria when using mains chokes:

ƒ Mains chokes are always required if all interconnected devices are operated with

rated current and speed.

ƒ Mains chokes are not required if the power of the entire network is less than 50 % of

the added continuous powers of all interconnected devices (= standard case).

v 0.5 @ SP

Sum of the average output power of the axes in the network

Medium mains power, depending on the "in motor mode/in generator mode"

operating status, motor current, motor speed and device losses

Sum of the rated power of the axes in the network

ƒ The use of mains chokes for complying with the EMC category C3 has to be assessed

separately ( 120).

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Lenze i700 Manual Bedienungsanleitung Seite 138