6
Diagnostics
126
Festo – GDCP-CMMO-ST-EA-SY-EN – 2017-05c – English
Note
Wear on holding brakes with error response “A” (free outlet)
When the output stage is switched off during a movement there is no deceleration of
the actuator via a braking ramp. The holding brake is closed immediately.
Check whether the integrated holding brake can stop the actuators.
Note the mechanical inertia of the holding brake.
Take into consideration the higher wear of the holding brake in comparison to auto
matic brake control in normal operation.
6.3.2
Tables
The tables for the diagnostic messages contain the following information:-
Term
Function
no.
Number of the diagnostic message in hexadecimal notation.
Classifiable as ...
F
/W/I = Fault/Warning/Information (
è
Indicates which classification is possible for a diagnostic message. The
factory setting is printed in bold (here F). If a classification is not possible,
this is indicated by dashes.
Example: “F/–/–” means that the diagnostic message can only be classified
as a fault.
Diagnostic memory
Indicates whether an entry is made in the diagnostic memory or if this can be
parameterised in FCT.
Acknowledgement
option
Contains information about the scope for acknowledgement.
Acknowledgement can be performed by FCT, web server or I/O interface
DIN11 (RESET)
Software reset:
If the fault cannot be acknowledged, a restart must be
performed:
– Restart FCT with the command [Component][Online][Restart controller]
– or switch device on and off
Error response
For every diagnostic message, provides the parameterisable error responses
as Code letters (A to G) (
è
Tab. 6.6). Code letters for the ex-factory response
settings are printed in bold.
Tab. 6.5
Explanations about the diagnostic messages
Code letters for the parameterisable error responses
A
Free outlet – no braking ramp, turn off output stage
B
Quick-Stop deceleration - quick-stop braking ramp, turn off output stage
C
Set deceleration - turn off braking ramp of current position records, turn off output stage
D
Ending a record - execute the record to the end until Motion complete, turn off output stage
E
Quick-Stop deceleration – quick-stop braking ramp, do
not
turn off output stage
F
Record deceleration - do not turn off braking ramp on current position records,
do not
turn off
output stage
G
Ending a record - continue to execute the record until Motion Complete, do
not
turn off output
stage
Tab. 6.6
Error responses (code letters)