Protective Functions Of The Supply For Driver Activation - Festo CAMC-G-S3 Manual

5 Operation
5.3.7

Protective functions of the supply for driver activation

The outputs for driver activation are protected against:
– Short circuit to 0 V and 5 V, as well as external voltage up to 60 V
– Cross circuits between the two supplies
– Voltage surge to 60 V
During operation, the active outputs are monitored using test pulses.
If there is an error, the outputs are switched off.
5.3.8 Protective function for the connected position encoder
The function of the position encoder is continuously monitored during operation.
What is monitored depends on the kind of encoder being used, e.g.:
– Monitoring of the analogue tracking signals, amplitudes and vector length monitoring for SIN/COS
and Hiperface encoders, as well as resolvers
– Monitoring of communication for purely serial encoders
– Additional plausibility check of the position data using acceleration monitoring
– Comparison of the position and speed data of position encoder 1 with those of position encoder 2 in
a cross-comparison between the microcontrollers
– Timeout control in case of idling and requested safety function for position encoders without forced
dynamisation (24 hr. monitoring).
5.3.9 Internal protective function of the electronics on the safety module
The safety module has countless additional internal monitoring functions, which can be performed by
the internal microcontrollers for one another:
– Dynamisation of many internal analogue signals using test pulses
– Factory production control of the microcontroller during operation using memory tests, OP code
tests, stack and program sequence monitoring
– Cross-comparison of correct program execution and synchronous program processing between
microcontroller 1 and microcontroller 2
– Cross-comparison of all key operating statuses and key status variables between microcontroller 1
and microcontroller 2
– Monitoring of ambient conditions (temperature)
– Monitoring of the internal communication interfaces
– Monitoring of communication to outside
– Monitoring of the data integrity of the safe parameter sets
– Monitoring of the operating statues and changeover
– Monitoring of the parameterisation session (session, password, master control, etc.)
– Monitoring of the error status
202 Festo – GDCP-CAMC-G-S3-EN – 1406NH – English