Diagnostics; Obligations Of The Machine Operator - Festo CMMO-­ST DION Série Description Et Mode D'emploi

CMMO­ST-...-DION/DIOP
3.3

Diagnostics

Diagnostics
Acknowledgment
1)
contact
1)
Display "H"
Error message
0x34
1) This diagnostics is not evaluated in terms of safety engineering.
Tab. 9 Diagnostic options of the STO function
For additional information on the 7-segment display and complete error lists è Manual
GDCP-CMMO-ST-EA-SY-...
3.4

Obligations of the machine operator

The implemented safety function must be subjected to a regular and documented performance test by
a specialist during the period of application of the machine. The frequency of these tests must be de­
termined by the machine operator based on the specifications of the machine manufacturer. An inspec­
tion of the motor controller is recommended at least once a year.
Festo – GDPC-CMMO­ST-EA-S1-Z6 – 2017-05d – English
Description
The acknowledgment contact of the STO function (DIAG1/DIAG2) can be
evaluated by a higher-order controller. The STO function is active whenever
the acknowledgement contact is closed.
The "H" in the 7-segment display of the motor controller indicates that the
power supply of the motor has been switched off via one or two channels.
The status of the STO function (active/inactive) is thereby not displayed.
When the STO function is requested the error message "Safe torque off "
(0x34) is generated and displayed cyclically on the 7-segment display of the
motor controller. The message can be configured as an error, a warning or as
information. An entry in the diagnostic memory is optional.
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