FAQ (Q & A)

Q1: What does “FS‑SDO‑04110” stand for?
A1: It denotes a Safe Digital Output module (SDO) under the FS (Field Safety) family, with 4 output channels and 110 V rating.

Q2: What are the output specifications?
A2: Four channels of 110 V DC outputs, each capable of driving up to 325 mA.

Q3: What is SMOD and why is it important?
A3: SMOD (Secondary Means Of De‑energizing) allows the watchdog or processor to shut off outputs independently of the main application logic, increasing safety.

Q4: What supply voltages does it require?
A4: It uses internal and external 110 V DC supplies plus a logic 5 V DC supply for module electronics.

Q5: What environmental range can it operate in?
A5: From –40 °C to +85 °C, making it suitable for harsh conditions.

Q6: Is the module protected against short circuits?
A6: Yes, the outputs are short-circuit proof.

Q7: What is the typical power consumption (module overhead)?
A7: Logic supply ~25 mA, internal supply ~10 mA, external no-load ~20 mA.

Q8: Can this module handle inductive loads?
A8: Yes—each output includes suppression diodes to safely manage inductive switching.

Q9: What form factor / rack space does it occupy?
A9: 4 TE width × 3 HE height (i.e. 4 HP, 3U).

Q10: How is the module connected in a safety system?
A10: Through proper wiring to internal and external 110 V DC rails and output pins d6, d8, d30 etc., following pinout diagrams in the manual.