Example: Single-Channel, Failsafe Input Device, With Test Pulse - Pilz PSS Series Operating Manual

Wiring

Example: Single-channel, failsafe input device, with test pulse

Features:
• Depending on the application area and its respective regulations, this
connection diagram is suitable for applications up to Category 2 in
accordance with EN 954-1.
• The input device must be approved for failsafe applications.
• Please read the instructions provided with the input device.
• The test pulse must be allocated to the input in the system software's
PSS Configurator (e.g. PSS WIN-PRO).
• Testing will detect short circuits on the input device cable to L+ and to
other test pulses.
• Only input devices with N/C contacts can be tested.
• Cable runs (distance from input device):
200 m; with 1 kOhm resistance parallel to input max. 800 m
CAUTION!
Short circuits between the cable from the test pulse to the input device and
the cable from the input device to the input will not be detected.
5-8 Operating Manual: PSS(1) DI2O Z