Electrical Installation - Lenze i550 Operating Instructions Manual

Electrical installation

Preparation Connection diagram
PTC input Networks

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



TX10


I55AE230 ... I55AE311, I55BE275 ... I55BE311
TX10
© 11/2021 · EN · www.Lenze.com
1-phase | 120 V 1-phase | 230/240 V
Functional safety Safe torque off (STO)
I55AE155 ... I55AE222, I55BE230 ... I55BE240
I55AE315 ... I55AE322
3.0
TX10
3.0
3-phase | 230/240 V 3-phase | 400 V
TX10
TX10
I55AE330 ... I55AE345
3.0
3.0
Operating instructions i550 cabinet frequency inverter | 12
3-phase | 480 V Brake resistor Control terminals
I55AE355 ... I55AE411
3.0
3.0
Relay output