Pilz PSS 3075-3 Series, Manual

Page: 66 / 98

Wiring the Inputs and Outputs
7-16 Operating Manual: PSS 3075-3 Series
Alarm inputs (DIF)
Example: Alarm test
Features:
• The test pulse must be allocated to the input in the system software’s
PSS Configurator (e.g. PSS WIN-PRO).
• The alarm inputs on the programmable safety system have a shorter filter
time than the other inputs on the safety system. The test period will
automatically adjust to the alarm inputs.
• DIF and DI2 inputs must not be connected to the same test pulse output.
CAUTION!
A short circuit in the cable between the input device and input with the L+
line or between adjacent inputs will not be detected. Neither will a short
circuit between several input devices be detected. Depending on the type
of input device connected, this could create a risk to both personnel and
machinery (e.g. E-STOP). Always ensure that the unit is suitably wired to
eliminate the risk of short circuits.