Product Details
The Honeywell FS-SAI-1620M CC V1.4, also cataloged as the SAI-1620M Safe High-Density Analog Input Module, operates as a dedicated hardware component for multi-channel analog signal acquisition and real-time safety loop processing within Honeywell Safety Manager and Fail Safe Controller (FSC) platforms. Accepting up to 16 input channels across a 0 to 4.1 V range with an input resistance exceeding 1 MΩ, the unit utilizes an onboard 12-bit A/D converter to digitize physical process variables. The module maintains absolute maximum signal limits of ±36 VDC with inter-channel cross-talk attenuation greater than 60 dB to prevent signal corruption during critical execution states.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FS-SAI-1620M CC V1.4 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 3 kg (Shipping Weight) |
| Dimensions | 4 HP, 3U (4 TE, 3 HE) rack spacing |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | 5 VDC at 35 mA / 24 VDC at 35 mA |
| Number of Channels | 16 safe analog input channels |
| Input Signal Range | 0 to 4.1 V |
| Input Resistance | > 1 MΩ |
| A/D Converter | 12-bit resolution (Inaccuracy: ±1 LSB) |
| Module Inaccuracy | < 0.25% |
| Absolute Max Signal | ±36 VDC |
| Channel Cross-Talk | > 60 dB |
| Approvals | CE, TUV, UL, CSA, FM |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation
The FS-SAI-1620M CC V1.4 provides signal conditioning infrastructure that interfaces with field termination units converting 4-20 mA HART loop protocol transmitters into 0 to 4.1 V signal levels. Internal filtering logic coupled with high-impedance input stages guarantees channel-to-channel isolation, suppressing common-mode noise across shared 0 V reference lines. This input protection topology maintains high signal fidelity and prevents high-voltage fault surges on field loops from breaching internal 5 VDC and 24 VDC backplane supply rails.
Frequently Asked Questions
Q: Can the FS-SAI-1620M CC V1.4 be inserted into an active Safety Manager chassis without interrupting overall bus logic?
A: Live replacement is supported on active backplanes provided the redundant controller chassis retains execution control and the extraction levers are disengaged straight out to prevent connector pin binding.
Q: How does the module handle overvoltage condition events on individual signal lines?
A: The input stages sustain absolute maximum input signals up to ±36 VDC without causing catastrophic physical failure or cross-channel breakdown to adjacent 12-bit conversion paths.
Field Installation Guidelines
- Slide the 4 HP, 3U module card straight along the subrack guide rails until the backplane connectors seat firmly into the chassis interface.
- Tighten the top and bottom front panel captive screws to lock the assembly in place and establish frame ground continuity.
- Verify that external 4-20 mA loop drop resistors on the associated field termination assembly are correctly scaled to output within the 0 to 4.1 V input window.
- Route field signal cabling through dedicated, shielded wireways separated from high-voltage AC conductors and switching motor leads to maintain optimal noise rejection.
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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