
Operating Manual: PSS67 F 16DI SB-T 7-9
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.
• 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.
• Only input devices with N/C contacts can be tested.
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