February 2012 21 – 347
21.1.10 Error finding: Swapping the HEIDENHAIN expansion boards for the SIMODRIVE 611 system
When a SIMODRIVE 611 system is used with a HEIDENHAIN control, there are HEIDENHAIN
expansion boards in the SIEMENS drive modules to adapt the PWM signals.
Boards of the
same type
Before using other drive modules for the examination of faulty axes, you may insert identical
interface boards.
Please observe:
Replace the boards while the machine is switched off.
Insert boards of the same type (1-axis module or 2-axis module, metallically isolated or not
metallically isolated. --> See ”Exchanging HEIDENHAIN interface boards in the SIMODRIVE
system” on page 29 – 553).
The grounding must be correct. --> See ”Exchanging HEIDENHAIN interface boards in the
SIMODRIVE system” on page 29 – 553.
Boards of
different types
If you do not have boards of the same type, under certain circumstances you may exchange boards
for 1-axis modules for boards for 2-axis modules and vice versa.
"Stumbling blocks" may be:
Some 2-axis module boards (ID number smaller than 359002-xx) require the corresponding enabling
signals of the control on every PWM interface. If such a board is inserted in a 1-axis module and one
PWM interface is not assigned, the entire board is not enabled.
If a 1-axis module board is inserted in a 2-axis module for testing, the corresponding axis can be
inspected.
If the other axis is to be inspected, the motor output on the power stage must be switched.
For these tests it might be necessary to deselect axes that cannot be controlled in MP10. With some
machines this might be difficult.
--> Ask your machine tool builder!
When troubleshooting do not insert obviously defective devices into the slots of the drive system!
Boards with metallic isolation of HEIDENHAIN PWM signals and the SIEMENS interface must not
be replaced by boards without metallic isolation and vice versa. --> See ”Overview of possible
errors” on page 5 – 51.
"Older" HEIDENHAIN interface boards must not be operated with modified SIMODRIVE power
modules. --> See ”Compatibility of HEIDENHAIN expansion boards to SIMODRIVE power
modules” on page 29 – 558.
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