Product Details
The Honeywell FC-SAO-0220M V1.2, also cataloged as the FC-SAO-0220M Safe Analog Output Module, operates as a dedicated hardware component for generating fail-safe current signals within Safety Manager networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-SAO-0220M V1.2 |
| Brand | Honeywell |
| Origin | Consult Honeywell documentation |
| Weight | 0.2 kg |
| Dimensions | 96 mm x 72 mm x 50 mm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | 65 mA (plus 30 mA per active channel) |
| Output Channels | 2 Channels |
| Output Range | 0 to 20 mA or 4 to 20 mA |
| Resolution | 12-bit D/A converter |
| Power Supply | 24 VDC |
| Maximum Loop Resistance | 600 ohms |
| Safety Certification | SIL 2 compliant (IEC 61508) |
Galvanic Isolation and Fail-Safe State Execution
Designed for SIL 2 safety loop architectures under IEC 61508 standards, the FC-SAO-0220M V1.2 incorporates internal galvanic isolation to separate field wiring loops from logic-side control electronics. Upon detection of internal faults or loss of communication from the Safety Manager controller, the module executes a fail-safe state execution, driving output current loops to a predetermined de-energized or zero-current trip state. The dual-channel 12-bit D/A conversion stage maintains continuous self-diagnostics to verify signal loop integrity across resistive loads up to 600 ohms.
Frequently Asked Questions
Q: What is the baseline power current draw for the FC-SAO-0220M V1.2 from the 24 VDC supply rail?
A: The module draws a base current of 65 mA plus an additional 30 mA per active output channel under normal operating load.
Q: How does the module handle output execution during a system diagnostic fault?
A: Integrated safety logic forces the affected output channel into a fail-safe state to prevent unsafe process conditions in compliance with SIL 2 criteria.
Q: What is the maximum allowable field loop resistance for the 4-20 mA outputs?
A: Each analog output channel supports a maximum loop load resistance of 600 ohms at 24 VDC nominal field supply.
Field Installation Guidelines
- Wiring Termination: Crimp ferrules onto all field loop conductors before connecting to screw terminal blocks to maintain tight electrical contact under vibration conditions.
- Shield Grounding: Earth cable shields at a single ground bar location within the cabinet enclosure to prevent low-frequency ground loops from distorting 12-bit output resolution.
- Thermal Spacing: Ensure unimpeded vertical convection airflow across the module housing when mounted in high-density rack configurations to operate safely within the -40 to +70 deg C thermal limit.
- Loop Resistance Verification: Measure total loop impedance, including field device and cable resistance, to ensure the total load does not exceed 600 ohms before commissioning.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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