7
7.3
List of faults and warnings
7-660
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
509
Drive converter limiting frequency exceeded
Cause
The speed actual value has exceeded the maximum permissible value.
Remedy
– Encoder pulse number is too low, enter the actual encoder pulse number
in P1005
– Stop the belt slipping in open-loop torque controlled mode (the belt slips)
– Check P1400 (rated motor speed)
– Check P1146 (maximum motor speed)
– Check P1147 (speed limiting)
– Check P1112 (motor pole pair number)
– Check P1134 (rated motor frequency)
Acknowledgement RESET FAULT MEMORY
Stop response
parameterizable
512
Measuring circuit error, direct measuring system
Cause
The encoder signal level is too low, faulted (incorrect shielding), or the
cable breakage monitoring function has responded.
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
encoder and control module
– Check the shield contact, front panel, control module (upper screw)
– Replace the encoder cables or the control module
– Replace encoder
Acknowledgement POWER ON
Stop response
parameterizable
7 Fault Handling/Diagnostics
01.99
04.05