Description
Honeywell FC-SDOL-0424
Technical Specifications
- Channel Count: 4 digital output channels
- Output Type: Sinking 24V DC
- Single Channel Rated Current: 200mA
- Supply Voltage: 24V DC nominal
- Isolation Rating: Reinforced isolation 500V AC
- Operating Temperature: -20°C to +70°C
- Backplane Interface: FC safety rack bus
- Power Consumption: 3.5W maximum
Functional Features Per channel independent fault diagnosis for open circuit and short circuit. Hardware current limiting and automatic latch protection upon short fault. Output status feedback readback for command-to-response mismatch detection. Dual channel internal logic voting for safety critical output. Front panel LED per channel status indication. Hot plug support within designated safety rack environment.
Application Scenarios Small SIS system local solenoid valve control Fire and gas system auxiliary alarm light output Packaging equipment safety interlock output Skid mounted process unit safety shutdown auxiliary drive Replacement spare for existing FC safety rack I/O
Performance Parameters
- Switching Response Time: <1ms
- Diagnostic Fault Detection Latency: <2.5ms
- Channel Crosstalk: -62dB minimum
- Diagnostic Coverage Factor meets safety system requirements
Material Composition FR4 flame retardant PCB, optocoupler isolation chips, power MOSFET switches, metal film sampling resistors, ceramic filter capacitors, tin plated copper screw terminals, black flame retardant plastic housing.
Structural Features Compact plug-in card form for FC rack slot. Removable terminal block for field wiring. Front panel status LED array. Internal isolation barrier separates safety logic circuit and field power circuit. Anti-keying notch prevents reverse insertion.
Working Principle Safety controller transmits output command over rack backplane bus. Onboard safety logic validates command frame integrity. Isolation optocoupler drives power switch to activate field output. Current sampling circuit continuously monitors loop condition. Fault condition triggers hardware latch and fault flag upload to controller. Local watchdog monitors internal logic operation continuously.
Installation Requirements Only install in matching Honeywell FC safety rack. Field cable is twisted shielded pair, single point grounding at cabinet end. Inductive loads must have freewheeling diode at load terminals. Torque terminal screws to specified torque value. Confirm firmware compatibility with host safety controller before commissioning.
Usage Notes Short circuit fault requires module power cycle for reset after fault clearance. Do not daisy chain multiple load devices on single output channel. Keep module ventilation path free of dust accumulation. No internal component modification is permitted for safety certified hardware.
