Synchronous motors (PMSM) – Manual with installation instructions
18
B 5000 en-2621
2.3 Description
2.3.1 Rotary encoders (option: IG, MG)
Rotary encoder with zero track (option: IG)
Depending on the application and customer requirements, a variety of rotary encoders are used. If
possible, these encoders are adjusted by NORD. If this is not possible, an offset is determined and
stated on a sticker inside the terminal box.
Some encoders cannot be read out by NORD due to their interfaces. In these cases, the encoder
must be adjusted by the customer. Information on this can be found in the operating instructions of the
encoder and the frequency inverter.
Magnetic encoder with zero track (option: MG)
The magnetic encoder is fastened to the fan cowl. The zero pulse is adjusted electronically.
2.3.2 Brake (option: BRE)
This option is equipped with a spring-loaded brake. This is a holding brake (safety brake) with
emergency brake features that is activated in case of voltage drop.
The brake cannot be adjusted. Information on this can be found in the operating instructions of the
brake.
