S-DIAS SAFETY CPU MODULE SCP 111
05.12.2023 Page 39
11 Wiring Guidelines
The input filters, which suppress noise signals, allow operation in harsh environmental
conditions. A careful wiring method is also recommended to ensure error-free function.
The following installation guidelines should be observed:
• Avoid parallel connections between input lines and load-bearing circuits.
• protective circuits for all relays (RC networks or free-wheeling diodes)
• correct wiring to ground