Description
1. At-A-Glance Executive Brief
- Model: F3322 (Part No. 984332202)
- Brand: HIMA
- Part Type: 16-Channel Digital Output Module (HIQuad Series)
- Lifecycle Status: Mature / Discontinued
- System Compatibility: HIMA HIQuad H41q and H51q Safety Instrumented Systems (PES)
- Core Protocol: Hardwired Discrete Output Interface with Safety Isolation
2. Technical Introduction
Safety instrumented architectures driving high-density final control elements require dependable discrete switching components that can manage inductive loads without compromising loop separation. The HIMA F3322 is a 16-fold digital output module engineered to switch resistive loads, inductive actuators, or pilot lamps up to 500 mA per channel under strict safety isolation requirements. The unit provides integrated short-circuit protection and safe de-energization behavior upon an L- supply interruption, ensuring predictable fail-safe responses across critical process loops.
Engineer’s Takeaway: Upgrading or replacing an output slot with the OEM F3322 module maintains your legacy HIQuad rack’s safety rating, delivering drop-in terminal compatibility while protecting final elements from electrical feedback faults.
3. Core Technical Specifications
| Parameter | Value |
| Manufacturer | HIMA |
| Product Family | HIQuad System Series |
| Module Type | Digital Output (DO) Module |
| Number of Channels | 16 channels (16-fold) |
| Load Current Limit | Up to 500 mA per channel (Resistive/Inductive) or 12 W lamp loads |
| Current Limiter Threshold | > 550 mA (Short-circuit proof outputs) |
| Operating Voltage | 5 V DC backplane (110 mA) / 24 V DC internal load (150 mA supplementary) |
| Rack Space Requirement | 4 TE standard module width |
4. Field Engineer’s Tech Notes
- Subrack Power and Load Fusing Limits: Adhere strictly to the design rule allowing a maximum of 10 active output modules per I/O subrack, ensuring total simultaneous switched load does not exceed half of the aggregate channel capacity (8 A max active load per subrack). Always maintain the standard 4A slow-blow rack fusing to prevent cascading power supply trips during an external short circuit.
- Inductive Load Suppression: When driving heavy solenoids or relay coils through the F3322 channels, verify that proper flyback diodes (such as 1N4007 networks) are installed across the field actuator terminals. Unsuppressed inductive kickback will stress internal output transistors and shorten contact service life.
5. Adaptive QA & Testing Protocol
Before dispatch, this F3322 unit undergoes comprehensive bench validation on an active HIQuad test rack. Technicians apply multi-channel resistive and inductive test loads up to the 500 mA threshold to verify output switching accuracy and current limiter trip thresholds (>550 mA). Safety isolation barriers and 5V/24V power draw parameters are verified against baseline factory standards. Complete test verification logs and video documentation are available upon request prior to shipment.
6. Buyer’s FAQ
- What warranty coverage is included with this output module? All New Surplus and fully tested refurbished HIMA safety modules are backed by a standard 12-month operational warranty from the date of purchase.
- Is this part supplied as New Surplus or Refurbished? Inventory stock varies between factory-sealed New Surplus (NSFP) and fully reconditioned, bench-tested hardware. Contact our sales team to confirm the exact condition of current shelf stock.
- What is the typical shipping lead time for urgent requirements? In-stock items ship same-day from our primary warehouse facility, ensuring rapid transit times to support critical plant shutdowns and turnarounds.
