Error Detection/Diagnostics - Siemens simatic et 200s Operating Instructions Manual

1PosSSI/Digital
5.6 Functions of the 1PosSSI/Digital
5.6.16

Error Detection/Diagnostics

Parameter assignment error
Parameter assignment error
Causes:
The 1PosSSI/Digital cannot identify parameters that
•
exist as its own.
The 1PosSSI/Digital slot you configured does not
•
match the physical setup.
Impermissible value for parameter for number of
•
increments.
Impermissible value for parameter for number of
•
rotations.
Number of increments * number of rotations is
•
greater than 4096x4096.
What to Do:
Check the configuration, physical setup and
•
parameter assignment.
External Errors
Load Voltage 2L+ Missing
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.
Short circuit of the sensor supply
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.
228
Response of the 1PosSSI/Digital
The 1PosSSI/Digital is not assigned parameters and cannot
•
execute its functions.
Generate channel-specific diagnostics
•
Response of the 1PosSSI/Digital
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
•
Response of the 1PosSSI/Digital
The current MODEs 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.
•
Operating Instructions, 05/2007, A5E00124871-04
ET 200S Positioning