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

10.7

Replacing a motor or encoder

Changes or replacement of hardware and/or software components
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.
It is not permissible that personnel are present within the danger zone.
Depending on the change or replacement, it may be necessary to carry out a new, partial or
complete acceptance test (see Chapter "Acceptance test (Page 543)").
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 (+/-).
It is especially important to carefully observe this for high-dynamic linear and torque motors.
New axis calibration
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.
Note
After SI relevant hardware has been replaced, this must be acknowledged using softkey
"Acknowledge SI HW". The procedure is logged in file "Confirm_SI_HW.log" - and is saved in
the HMI file system under.../user/sinumerik\hmi\data\safety.
Example for the structure and content of Confirm_SI_HW.log:
<Start of file>
===================================================================
Confirm_SI_HW.log
===================================================================
Date: <yyyy>/<mm>/<dd>
Axis/drive: <Axis/drive identifiers as in the axis/drive-specific HMI screen forms>
Checksum: MD36998[1], $MA_SAFE_ACT_CHECKSUM[1] = value in the hexadecimal
notation>
===================================================================
<End of file>
Description
The following information essentially refers to replacing a motor encoder. The limitations that
apply as well as the procedures are essentially the same when replacing a direct measuring
system.
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
WARNING
WARNING
Commissioning
10.7 Replacing a motor or encoder
557