Beckhoff TwinSAFE EJ Series - Actuators; Local Logic Functions; Fig. 5 Digital Output -Safety Parameters

General operation / function
EJ19xx and EJ29xx 17Version: 1.2.0
Fig.5: Digital output –safety parameters
Index Name Default value /
unit
Description
80x0:01 ModuloDiagTestPulse 0x00 / integer Modulo value for the frequency of the generation of
a test pulse.
0 -> every time
1 -> every second time
...
80x0:02 MultiplierDiagTestPulse 0x02 / integer Length of the test pulse in multiples of 400µs
80x0:03 Standard outputs active FALSE / Boolean Activation of the logical AND operator of the safe
and standard outputs of the module
80x0:04 Diag TestPulse active TRUE / Boolean Activation of test pulses for the corresponding
output module
The index is incremented by 0x10 for each output module in accordance with the number of outputs.
Testpulse length of the output signals
The setting via the parameter MultiplierDiagTestPulse controls the test pulses of the individual channels. In
addition, the second internal switch off path is also tested. This leads to a prolongation of the length of the
test pulses by approx. 700μs.
Together with the setting MultiplierDiagTestPulse = 2 results in a minimum test pulse length of 1.5 ms.
The parameter MultiplierDiagTestPulse can not be reduced to 1 since a reliable readback of the test pulse at
the output is not possible.
Note
Testpulse length of the output
The minimum useful setting of MultiplierDiagTestPulse = 2 results in a total test pulse
length of approx. 1.5 ms.
5.4.2 Actuators
The outputs have a maximum permissible output current of 0.5 A. This must not be exceeded. The
simultaneity factor of the outputs of an EJ module is 100%.
Inductive, resistive and capacitive loads are supported.
5.5 Local logic functions
Apart from their standard function, all EJ input and output modules also support the option to execute a local
safety user program.
Information on creating a safety user program can be found in the documentation for the EJ6910 (see
References [}8]).