Siemens SIMATIC ET 200S - Error Detection;Diagnostics

1PosInc/Digital
3.6 Functions of the 1PosInc/Digital
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
99
3.6.17 Error Detection/Diagnostics
Parameter assignment error
Parameter assignment error Response of the 1PosInc/Digital
Causes:
• The 1PosInc/Digital cannot identify parameters that
exist as its own.
• The 1PosInc/Digital slot you configured does not
match the physical setup.
What to Do:
• Check the configuration and setup
• The 1PosInc/Digital is not assigned parameters and cannot
execute its functions.
• Generate channel-specific diagnostics
External Errors
Load Voltage 2L+ Missing Response of the 1PosInc/Digital
Causes:
• Load voltage 2L+ not present or too low at
terminal 15
What to Do:
• Check the wiring and correct the short circuit.
• Acknowledge the error with the EXTF_ACK control
bit.
• The current run is halted; it is not possible to start a new run.
– All 3 digital outputs are set to 0.
– Feedback bit POS_ERR = 1
– Feedback bit POS_DONE = 0
• Feedback bit ERR_2L+ = 1
• Generate channel-specific diagnostics
• Waits for error acknowledgment EXTF_ACK
Short circuit of the sensor supply Response of the 1PosInc/Digital
Causes:
• Short circuit of the encoder supply made available at
terminals 2 and 10
What to Do:
• Check the wiring and correct the short circuit.
• Acknowledge the error with the EXTF_ACK control
bit.
• The current MODEs reference point run, relative positioning
and absolute positioning are stopped; it is not possible to
start a new run in these MODEs.
– All 3 digital outputs are set to 0.
– Feedback bit POS_ERR = 1
– Feedback bit POS_DONE = 0
• Feedback bit ERR_ENCODER = 1
• Feedback bit SYNC = 0
• Generate channel-specific diagnostics
• Waits for error acknowledgment EXTF_ACK
• Inching MODE is not affected by this error.
• The current JOB (reference signal evaluation) is canceled.