Key Technical Specifications

• Product Model: F3330
• Manufacturer: HIMA
• Product Type: Safety-Related Digital Output Module
• Channel Count: 8 Channels
• Safety Rating: SIL 3 / Category 4 (IEC 61508)
• Output Current: 500 mA per channel
• Resistive Load Capacity: Up to 4 W (e.g., indicator lamps)
• Inductive Load Capacity: Up to 12 W (e.g., relay coils, solenoids)
• Internal Voltage Drop: 2 V at 500 mA load
• Max Line Resistance: 11 Ohms (Input + Output combined)
• Power Consumption: 110 mA @ 5 V DC, 180 mA @ 24 V DC
• Space Requirement: 4 TE (Rack Units)

 

Product Introduction

The HIMA F3330 is an 8-channel safety-related digital output module designed for critical Emergency Shutdown (ESD) and Fire & Gas (F&G) systems. It reliably drives field devices such as safety relays, solenoid valves, and alarm indicators while maintaining strict SIL 3 compliance.Field deployments of the HIMA F3330 utilize an integrated safety shutdown circuit to guarantee fail-safe operation. If a channel fault is detected during self-diagnostics, the module safely de-energizes the outputs; if that fails, a redundant circuit or watchdog timer forces a 24 VDC power loss to protect the process.

Installation & Configuration Guide

Preparation: Verify the ESD system power is stable. Put on an ESD wrist strap. Ensure you have the correct Z7108/Z7128 front connector plugs ready for wiring.Removal: If replacing a failed module, confirm the system’s redundancy is active. Loosen the front panel retaining screws. Carefully extract the module straight out to prevent backplane pin damage.Installation: Align the F3330 with the chassis guides and press firmly until fully seated. Secure the retaining screws. Connect the 24 VDC field wiring to the appropriate front connector pins.Power-On & Test: Apply system power. Observe the individual LED status indicators on the front panel. Use the HIMA engineering workstation to force individual outputs and verify field device actuation.

 

Troubleshooting Quick Reference

• Entire Module De-energized: Check the 24 VDC supply. The integrated safety shutdown circuit or watchdog timer may have tripped due to a severe internal fault.
• Single Channel Not Switching: Measure output voltage at the terminal. Verify the load does not exceed 500 mA. Check for wiring shorts.
• Module Fault LED Illuminated: A short circuit (>500 mA) or open circuit was detected. Resolve the field fault and press the ACK button on the CPU to restart the card.
• Intermittent Relay Chatter: Verify inductive loads have proper RC snubber circuits and flyback diodes installed to suppress voltage spikes.
• Communication Errors: Reseat the module. Inspect the IO BUS connectors for oxidation or bent pins.

Dimensions, Mounting & Wiring Notes

• Dimensions: Standard 4 TE width (Rack Mount)
• Mounting Method: 19-inch control cabinet rack, secured with front panel screws
• Terminal Notes: Requires specific HIMA front cable plugs (e.g., Z7108 or Z7128 series)
• Environmental Rating: IP20 (Must be installed inside a sealed, climate-controlled control cabinet)

 

FAQ

1. Can I connect a 24V solenoid valve directly to this module?
   Yes, but you must verify the valve’s power consumption. The F3330 limits inductive loads to 12 W (500 mA). If the valve exceeds this, use an external safety relay.
2. I need 5 modules for an offshore platform ESD upgrade. What’s the lead time?
   Because this is legacy HIMatrix hardware, availability depends entirely on our current surplus inventory. Contact our sales team directly with your exact quantity for a real-time stock check and volume pricing.
3. Wait, do I really need to add diodes to the relay coils?
   Absolutely. Inductive loads generate massive voltage spikes when de-energized. Without flyback diodes and RC snubbers, these spikes will eventually destroy the F3330’s internal switching transistors. (I’ve seen fried boards because someone skipped this step.)
4. Are these modules brand new or refurbished?
   We clearly state the condition on every listing. Current inventory consists of New Surplus (factory sealed) or Refurbished (functionally tested) units. Never assume condition without checking the specific product page.
5. What happens if one channel shorts out?
   The module features short-circuit protection. If any loop exceeds 500 mA, the entire card is safely protected and isolated. A fault message will appear on the CPU, and you can press the ACK button to restart it once the field fault is cleared.
6. Do you offer bulk discounts for system integrators?
   Absolutely. We provide tiered pricing for volume purchases. Reach out to our procurement desk with your required quantity, and we will generate a formal quote within 24 hours.
7. Is this module compatible with the newer HIMax systems?
   The F3330 is primarily designed for the HIMatrix and HIQuard architectures. While HIMA systems share some DNA, you must verify cross-compatibility with the specific HIMax CPU and backplane revision before ordering. Always consult the OEM integration manual.