6
Installation
and Operation
EDBC250SIO | 2.0
211
PLCDesigner configuration example:
Refer to the manual of your PLC to know how to set up a PLCDesigner project.
6.6
Diagnosis
6.6.1
Self-test
When system voltage is supplied to the Lenze Safety I/O-module, it initially runs a complete
system test. Only if this system test is passed will the module be able to operate and first of all
change to its "fail-safe" state.
This is indicated by LED "Safe Status" lighting up red.
The Safety I/O-module module will retain the fail-safe state until all internal tests have been
passed, valid data has been received from the control unit, and faults are not detected in any
of the external hardware, sensors, actuators and their wiring.
A safe functional state is indicated by LED "Safe Status" lighting up green.
The module will retain its fail-safe state if it fails to qualify for the safe state, e.g. because of
errors in the application's module setup. To find the cause of the problem, check the error
code in the service block
►
6.6.6 Table of Faults.
In service, the system test is repeated cyclically as a background process.
To repeat the initial system test, just turn the power supply off and back on again.
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