Encoder mounting adapters for EI7. and EI8. built-in encoders

An encoder mounting adapter allows for mounting an encoder, which is not part of the standard delivery, at a later time. This makes it possible to flexibly retrofit motors with an encoder.

EI7A is the encoder mounting adapter for retrofitting EI71, EI72, EI76, or EI7C encoders.

EI8A is the encoder mounting adapter for retrofitting EI8R or EI8C encoders.

The motor is fully prepared for subsequently installing these encoder types. Retrofit sets and service kits are available from SEW-EURODRIVE. Observe possible restrictions for the EI7C safety encoder.

Connection technology for retrofitted encoders

The same connection options as for EI7. and EI8. are retrofitted.

Mechanical design of motors with mounting adapters

If you have selected an EI7A or EI8A encoder mounting adapter, the motor is equipped with an EI7./EI8.-capable rear endshield and a suitable terminal box to enable a retrofit.

Combinatorics

The following applies for all first- and second-generation DR.. motors:

  • EI7A and EI8A mounting adapters for built-in encoders from the EI7. and EI8. family are available.
  • Terminal boxes with an NPT cable gland are not possible with EI7A/EI8A, as the NPT terminal box cannot be retrofitted with M12/M23 connectors.
  • EI7A can be combined with all motors and options with which an EI7. encoder can be combined.
  • EI8A can be combined with all motors and options with which an EI8. encoder can be combined.
  • EI7A and EI8A cannot be combined with add-on encoders of the .S7. and .K8./.K9. families.
  • EI7A and EI8A cannot be combined with add-on encoders in the .V7. and .V8. flange guard mounting.

The following also applies for DR2C.. motors:

  • When retrofitted, built-in encoders are not included in the closed loop system and are not suitable for closed-loop operation.
  • Built-in encoders are suitable for an external evaluation device to obtain additional incremental position information.

The following also applies for DRM.. and DR2M.. motors:

  • EI7A or EI8A are each possible only with an additional forced cooling fan.