Product Details
The Honeywell 900G32-0301, also cataloged as the 900G32 Digital Input Module, operates as a dedicated hardware component for 24 VDC discrete signal sensing within ControlEdge HC900 Series Controller platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900G32-0301 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.175 kg (0.39 lbs) |
| Dimensions | Standard HC900 rack slot footprint |
| Operating Temp | -40 to 70 deg C (Storage: -40 to 85 deg C) |
| Power Consumption | Backplane powered via HC900 chassis bus |
| Inputs Per Module | 32 channels (sinking configuration) |
| Input Voltage Range | 10 VDC to 32 VDC (32 VDC peak) |
| Voltage Thresholds | ON: 9.5 VDC min; OFF: 3.5 VDC max |
| Input Current | 1.7 mA at 12 VDC; 3.5 mA at 24 VDC nominal |
| Input Impedance | 6.9 k ohms nominal |
| Response Time | 5 ms max (OFF to ON / ON to OFF) |
| Galvanic Isolation | 2 groups of 16 inputs (30 VDC max) |
| Product Category | PLCs/Machine Control / Digital Input Cards |
Channel-to-Channel Isolation & DCS Integration
The 900G32-0301 module converts 32 discrete 24 VDC field input signals into backplane logic states across 2 galvanically isolated groups of 16 channels. Operating in parallel with analog I/O modules processing 4-20 mA HART loop protocol instruments, the sinking input circuitry uses a nominal 6.9 k ohm impedance to filter out transient electrical noise. Grouped galvanic isolation prevents ground potential differences between field fieldbus segments and system logic backplanes from degrading loop performance.
Frequently Asked Questions
Q: What input current is required to trigger a valid logic ON state on a channel?
A: An input voltage of at least 9.5 VDC providing a minimum threshold current of 1.0 mA is required to register an ON condition.
Q: How is galvanic isolation structured across the 32 input channels?
A: The module architecture splits the 32 channels into two separate groups of 16 inputs, isolated up to 30 VDC maximum between groups.
Q: What is the maximum switching delay when an input signal transitions from OFF to ON?
A: The signal processing circuit executes the state transition with a maximum response time of 5 ms.
Field Installation Guidelines
- Disconnect backplane power to the HC900 rack prior to inserting or extracting the 900G32-0301 module.
- Connect field signal wiring according to sinking polarity guidelines, using external 24 VDC power sources across each 16-channel isolation group.
- Keep discrete 24 VDC signal cables separate from high-power AC conductors inside panel trunking to eliminate induced voltage noise.
- Tighten top and bottom module mounting screws securely to maintain continuous ground bonding with the chassis backplane.
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.
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