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Operating instructions i550 cabinet frequency inverter | 12

Preparation for connection to an IT system

NOTE

Internal components have ground potential

Possible consequence: The monitoring devices of the IT system will be triggered.

• Connect an isolating transformer upstream.

• Before connection to an IT system be absolutely sure to remove the screws marked on the

product with "IT".

I55AE125 ... I55AE137 I55AE155 ... I55AE222, I55BE230 ... I55BE240

TX10

I55AE230 ... I55AE311, I55BE275 ... I55BE311 I55AE315 ... I55AE322

TX10

3.0

I55AE330 ... I55AE345 I55AE355 ... I55AE411

3.0

Electrical installation



















3-phase | 480 V

3-phase | 230/240V

3-phase | 400 V1-phase | 120V

1-phase | 230/240V

Control terminals

Relay output

Connection diagramPreparation

Brake resistor

Networks

Functional safety

Safe torque o (STO)

PTC input

Lenze I55AE137 User Manual

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