HIMA F3226A

Description

Technical Specifications

• I/O Channel Configuration: 16 × Independent Safety Digital Output Channels
• Channel Current Rating: Continuous 0.5 A per channel at full -20 °C ~ +60 °C operating temperature; aggregate maximum total output current 5 A
• Fail-Safe Logic: All outputs de-energized upon network communication loss, internal hardware fault or under-voltage power supply condition
• Communication Interface: Dual redundant RJ45 SafeEthernet 10/100BASE-TX ports with integrated internal network switch
• Power Supply Nominal Rating: 24 VDC; allowable input range 19.2 VDC – 30 VDC
• Full Channel Refresh Response Time: ≤ 12 ms
• Galvanic Isolation Standard: 500 VDC channel-to-backplane galvanic isolation
• Environmental Ratings:
  • Operating Temperature: -20 °C ~ +60 °C
  • Storage Temperature: -40 °C ~ +85 °C
  • Protection Class: IP20 indoor cabinet installation only
  • Hazardous Approval: Ex Zone 2 certified
• Mechanical Dimensions: 207 mm (H) × 114 mm (D) × 22.5 mm (W)
• Net Weight: 1.18 kg
• Certifications: SIL3 (IEC 61508, IEC 61511), TÜV safety certification, ATEX, CE, UL industrial control equipment certification

Function Features

1. 16-channel high-density layout to minimize module quantity and cabinet footprint for multi-point safety signal actuation
2. Per-channel short-circuit, overcurrent and over-temperature hardware protection with automatic self-recovery after fault clearance
3. Real-time output state readback diagnosis to detect open load, broken wiring or valve coil failure
4. Individual LED status indicators for each output channel, power input, network link status and global module fault alarm
5. Hot-swappable hardware design supporting online module replacement without SIS system shutdown
6. Native full compatibility with all HIMatrix F-series safety controllers and SILworX / ELOP II Factory configuration software
7. On-board non-volatile fault event storage to record channel overload, open load and communication failure timestamps for post-fault analysis

Material Composition

• Outer Housing: UL94-V0 flame retardant reinforced thermoplastic industrial housing
• Circuit Substrate: High-temperature FR4 fiberglass PCB with gold-plated backplane contact pins
• Terminal Connectors: Copper alloy screw terminals with nickel anti-corrosion coating and anti-loosening spring washers
• Internal EMC Components: Cold rolled steel shielding plate to suppress industrial electromagnetic interference
• Drive Core Components: Low-power industrial MOSFET switching chips with integrated thermal monitoring resistors

Structural Characteristics

• Narrow 22.5 mm DIN rail mount slim housing for maximum cabinet channel density
• Front detachable spring-cage terminal blocks allowing full wiring separation during maintenance replacement
• Dual stacked RJ45 Ethernet ports on upper front panel for redundant ring network cascading
• Vertical LED indicator array aligned one-to-one with each DO channel for direct visual fault location
• Rear heavy-duty anti-vibration DIN rail locking buckle with dual safety locking tabs
• Segmented terminal layout grouping 4 output channels per wiring zone to simplify organized field cable routing

Working Principle

1. Safety control output commands are transmitted from HIMatrix safety controller via redundant SafeEthernet cyclic safety frames with cryptographic checksum verification
2. On-board safety FPGA distributes digital drive signals to 16 independent MOSFET output circuits
3. Built-in current sensing circuits continuously monitor each channel load current; threshold violation triggers immediate channel power cut-off and fault logging
4. Load impedance detection circuitry identifies open circuit (broken wire, burnt coil) and raises diagnostic alarms within 100 ms of fault occurrence
5. Hardware watchdog circuit continuously monitors module CPU operation and network link health; total communication loss triggers all outputs to safe de-energized state within 12 ms

Advantage Highlights

1. 16 low-power output channels in single 22.5 mm slice drastically reduces cabinet space and wiring cost versus smaller 4/8-channel DO modules
2. Open load detection function identifies broken valve coils and disconnected wiring without additional external monitoring hardware
3. Full SIL3 safety certification compliant for fire & gas alarm, emergency stop interlock and safety relay control loops
4. Dual redundant SafeEthernet ports eliminate external network switches for fault-tolerant ring SIS networks
5. Automatic fault recovery removes requirement for manual power cycle after transient short-circuit field faults
6. Wide operating temperature range adapts to unconditioned industrial control cabinets for refinery and power plant deployment

Applicable Industries

Refinery fire & gas alarm horn and beacon control, power plant turbine safety auxiliary relay interlock, chemical plant emergency stop circuit actuation, offshore platform safety indicator light control, pharmaceutical hazardous batch process safety relay logic, fertilizer plant gas detection alarm output control

Installation Requirements

1. Install exclusively on standard 35 mm DIN top hat rail inside IP20 rated electrical control cabinet
2. Maintain minimum 10 mm vertical clearance above and below module for passive heat dissipation
3. All field load wiring must use shielded twisted pair cables with single-point grounding at cabinet protective earth bar
4. Separate high-current DO load wiring and low-current analog/sensor signal wiring with minimum 5 cm physical separation
5. SafeEthernet communication cables must be industrial CAT5e shielded Ethernet cable
6. Surge protection devices required for field wiring runs longer than 20 meters
7. Cabinet ambient humidity maintained at 5% – 95% non-condensing with zero internal condensation

Usage Precautions

1. Prohibited for Ex Zone 0 / Zone 1 hazardous area installation; only Ex Zone 2 cabinet mounting permitted.
2. All inductive loads (solenoids, safety relays, alarm horns) must have flyback freewheeling diodes installed across load terminals to suppress inductive voltage spikes.
3. Disconnect all field wiring terminals before hot-swapping the module to avoid transient voltage surge damage to internal MOSFET drive circuits.
4. Continuous supply voltage must stay within 19.2 VDC – 30 VDC range; sustained overvoltage leads to permanent driver circuit degradation.
5. Terminal screw tightening torque limited to maximum 0.8 N·m to prevent PCB trace fracture and plastic terminal base cracking.
6. Firmware modification via non-HIMA official software tools invalidates TÜV SIL3 safety certification and full product warranty.
7. Annual complete channel function and fault detection testing mandatory to satisfy IEC 61511 process safety audit requirements.