Technical FAQs

1. How many discrete inputs does the module provide?
It has 16 discrete input points designed to accept AC signals.

2. What voltage range do the inputs support?
Inputs are compatible with 120–240 VAC field signals.

3. What type of isolation does it offer?
The module uses galvanic isolation to separate field wiring from controller logic.

4. Can it detect DC inputs?
No — this specific model is optimized for AC discrete inputs only. For DC inputs, other HC900 modules are available.

5. Does the module include status LEDs?
Yes — LED indicators help identify active channels and simplify diagnostics.

6. What is the operating temperature range?
Typical industrial range from –20°C to +60°C.

7. How is this module mounted?
It installs into an HC900 I/O rack or compatible backplane.

8. Can this module be hot‑swapped?
Service procedures should follow HC900 backplane guidelines; some modules support rack servicing with power applied.

9. Is this module suitable for safety systems?
It is suitable for general automation monitoring; safety compliance depends on system configuration and standards.

10. What field devices can be connected?
Common AC devices such as contactors, limit switches, and high‑voltage sensor contacts.