
Technical Product Manual
Fault analysis and repairs 1318
3 Removing and fitting housing
Section 3: Removing and fitting housing • Edition 12/2005
TU00-1318-0200302 © Siemens VDO Trading GmbH Section 3 3–43
3.10.2 Checking and replacing speed measurement system
3.10.2.1 Checking speed measuring system
Procedure
Connect a measuring device between wires (4) and (5) and determine the re-
sistance value.
Permissible value: R = 5 KΩ ± 10%
Connect the resistance measuring device to wires (4) and (6).
Turn the coupling (7) slowly and evenly.
As you turn the coupling (7) read off the resistance value.
Permissible resistance value:
Depending on the direction of rotation in a range from about 200 Ω to 4 KΩ.
The resistance value may only rise or fall evenly.
3.10.2.2 Replacing the speed measurement system when faulty
Procedure
Replacing the speed measurement system (3) completely
For order numbers please refer to the 1318 Electronic Product Catalogue (EPC).
Remark
Repair:
For an abrupt, uneven change in the resistance value
between cables (4) and (6).
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