7
7.3
List of faults and warnings
7-659
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
507
Synchronization error rotor position
Cause
The difference between the actual rotor position and the new rotor posi-
tion, which was determined by fine synchronization is greater than 45
degrees electrical.
When commissioning a linear motor with rotor position identification
(e.g. linear motor, 1FE1 motor), the fine synchronization was not ad-
justed.
Remedy
– Adjust the fine synchronization using P1017 (commissioning help
function)
– Check encoder cable, encoder cable connection and grounding
(possibly EMC problems)
– Check the shield contact, front panel, control module (upper screw)
– Replace control module
– Exchange the encoder or motor
Acknowledgement POWER ON
Stop response
parameterizable
508
Zero mark monitoring, motor measuring system
Cause
The measured rotor position fluctuates between 2 encoder zero marks
(encoder lines may have been lost).
Note:
The encoder monitoring function can be disabled using P1600.8.
Remedy
– Use the original Siemens pre-assembled encoder cables (better
screening)
– Check for sporadic interruptions (loose contact, e.g. due to cable
drag movements)
– For toothed-wheel encoders, check the clearance between the
toothed wheel and sensor
– Check the encoder, encoder cables and connectors between the
motor and control module
– Check the shield contact, front panel, control module (upper screw)
– Replace the encoder cables or the control module
– Replace control module
– Exchange the encoder or motor
Acknowledgement POWER ON
Stop response
parameterizable
7 Fault Handling/Diagnostics
01.99
04.05
