July 2010 28 – 553
28.8 Exchange of Other HEIDENHAIN Components
Encoders Many HEIDENHAIN products (encoders, scanning heads, etc.) are supplied with mounting
aids (metal forks, spacer plates, etc.)
Mounting Instructions and Mounting Information are also included in delivery.
The HEIDENHAIN testing devices PWM 9 (See ”PWM 9 Encoder Diagnostic Set” on page 29
– 566) or PWT (See ”PWT 10/17/18 Testing Unit” on page 29 – 568) are good aids for
adjusting scanning heads.
If HEIDENHAIN measuring devices (e.g., scale) were exchanged, in most cases the
machine datum had to be set again. --> See “Encoder Interface” on page 18 – 277.
If a HEIDENHAIN motor encoder for a spindle was exchanged, it can be necessary to
set the spindle preset again. --> See “Encoder Interface” on page 18 – 277.
Drive components
and mechanics
If HEIDENHAIN motors for axes or spindles were exchanged, it might be necessary to readjust
the trip dog for reference end position, to reset the machine datum and to find the spindle
preset again. --> See “Encoder Interface” on page 18 – 277.
Some successor spare parts (e.g., inverters, motors) are supplied with replacing
instructions describing, e.g., necessary changes in the MP list or in motor or power module
tables.
When exchanging electrical original components (inverters, motors, etc.) a new
adjustment of control loops of axes and spindle is normally not necessary.
Exception: When exchanging an MC that also (or exclusively) controls analog axes, an offset
adjustment with the code number for the fine compensation should be performed. --> See
“Adjusting the electrical offset (drift adjustment)” on page 20 – 349.
For information on the exchange of drive components, refer to the Service Manual
”Inverter Systems and Motors”.
When exchanging mechanical components, readjustment of the control loops of axes and
spindles may be necessary. --> Contact the machine manufacturer!
Cables Exchange cables only for original cables! Do not exceed any maximum lengths!
Shielding and
grounding
If required, ensure proper shielding and grounding of cables and components.
Packaging If possible, use original packagings from HEIDENHAIN.
When you exchange motors or encoders for drives with field angle determination (normally
linear and torque motors) the function Field orientation must be executed again.
Contact your machine manufacturer!
If you have any questions, contact the machine tool builder or a HEIDENHAIN service
agency.
To Next Page
Loading...
Need help?
General
