Beckhoff TwinSAFE EL6910, Operation Manual

Page: 20 / 144

Operation
EL6910 20 Version: 1.8.0
4.2.3.3 Sample configuration for temperature measurement
Fig. 4: Sample configuration for temperature measurement
The sample configuration for the temperature measurement consists of an EK1100 EtherCAT coupler with
connected terminals that match the typical distribution of digital and analog signal types at a machine. On the
EL6910 a safety project is active, which reads safe inputs and enables all 4 safe outputs during the
measurement.
External heat sources / radiant heat / impaired convection
The maximum permissible ambient temperature of 55°C was checked with the above sample con-
figuration. Impaired convection, an unfavorable location near heat sources or an unfavorable config-
uration of the EtherCAT Terminals may result in overheating of the terminals.
The key parameter is always the maximum permitted internally measured temperature of 95°C,
above which the TwinSAFE terminals switch to safe state and report an error. The internal tempera-
ture can be read from the TwinSAFE components via CoE.