Replacing A Motor Or Encoder - Siemens SINUMERIK 840D sl Function Manual

Commissioning

9.6 Replacing a motor or encoder

9.6 Replacing a motor or encoder
Warning
!
After hardware and/or software components have been changed or replaced, it is
only permissible to boot the system and activate the drives when the protective
devices are closed. Personnel may not be in the hazardous area.
Depending on the change or replacement, it may be necessary to carry-out a new,
partial or complete acceptance test (see Section 9.5 Acceptance test).
Before persons may re-enter the hazardous area, the drives should be tested to
ensure that they exhibit stable behavior by briefly moving them in both the plus
and minus directions (+/–).
Warning
!
After the measuring system has been replaced – regardless of whether it is a
direct or an indirect system – the relevant axis must be re-calibrated.
Description
The following information essentially refers to replacing a motor encoder.. The limi-
tations that apply as well as the procedures are essentially the same when replac-
ing a direct measuring system.
When service is required (motor defective or encoder defective), it might be neces-
sary to completely replace the motor or just the motor encoder.
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
© Siemens AG, 2006. All rights reserved
03.06