ABB Jocab Safety Vital 2 Operating Instruction page 2

General
Vital is based on a single-channel safety concept where several safety components (e.g. sensors)
can be connected in series and supervised with only one safety module. A dynamic signal is sent
from Vital through all connected components, and then back to Vital which evaluates the received
signal. Since each safety component inverts the signal it is possible to detect short circuits, or
failures, in a sensor. Vital 2 and Vital 3 are intended to be used together with Jokab "Eden"
sensors, "Tina" components and "Spot" light beams or similar components. Vital 2 and 3 are both
safety modules with two safe input functions and two output groups. The only difference between
the two models lies in the input configuration.
Eden
Eden – Adam and Eva is a non-contact safety sensor for use on interlocked gates, hatches etc.
The dynamic signal from Vital is transmitted via Adam to Eva which modifies it and sends it back to
Adam, which in turn sends it inverted to the next Eden in the safety loop. Since each Eden inverts
the signal, different inputs on Vital 2/Vital 3 shall be used depending on if an even or an odd
number of Eden sensors are connected in series.
Jokab Eden sensor
Tina
"Tina" is a product family from Jokab which converts the signal from sensors with contacts or
OSSD-outputs to the dynamic safety loop. A large number of "Tina" components exist. A Tina 2A
can for instance be used to invert the signal at a switch in order to make it possible to detect short
circuits over the switch. Tina 10A is used to connect a Focus light beam/curtain to Vital 2/3.
T11 R11
Tina 10A
Example with Tina and switch
Tina 2A
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