Configured for high-speed pulse counting and 4-axis motion position monitoring in FA-M3 PLC chassis architectures, the Yokogawa F3NC34-0N (F3NC34 Positioning Module) provides direct physical/electrical execution. The module processes high-frequency encoder feedback and differential pulse inputs across 4 independent counter channels to execute real-time speed and position tracking. Mounted on the central FA-M3 backplane, the unit interfaces directly with the central processor bus to transfer 32-bit accumulated counter counts at frequencies up to 100 kHz per channel.
| Parameter | Specification |
|---|---|
| Model | F3NC34-0N |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.15 kg net (0.91 kg shipping weight) |
| Dimensions | 28.9 mm W x 100 mm H x 83.2 mm D |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | 3 W maximum (5 VDC logic bus supply) |
| Channels | 4 independent counter/positioning channels |
| Input Signal Types | Differential pulse, A/B phase quadrature encoder, contact ON/OFF |
| Input Frequency | Up to 100 kHz per channel |
| Counter Range | 32-bit counter capacity |
| Isolation | Optical isolation between input channels and system bus |
The F3NC34-0N module features high-speed optocouplers to establish physical galvanic isolation between external pulse feedback lines and the internal 5 VDC system bus. When operating in control enclosures alongside analog modules processing 4-20 mA HART loop protocol signals or delicate millivolt CJC (cold junction compensation) sensor wires, this optical isolation blocks ground loops and high-frequency common-mode noise. By isolating field-side encoder signals, the module prevents high-frequency switching transients from coupling into sensitive process instrumentation loops.
Q: What action occurs if input pulse frequencies exceed the 100 kHz limit on a channel?
A: Pulse rates exceeding 100 kHz can cause missed counts or timing skew in the 32-bit counter registers, compromising position accuracy without triggering a hardware shutdown.
Q: Can the F3NC34-0N module be installed or removed while the FA-M3 backplane is energized?
A: No. Disconnect power to the main FA-M3 rack before removing or installing the module to avoid backplane pin damage and logic bus latch-up faults.
Q: How does optical isolation protect system logic during field-side wiring faults?
A: The internal optical barriers insulate system electronics against field voltage surges and transients, preventing external electrical faults on encoder lines from corrupting central backplane logic.
Nuestra línea de producción se paró debido a un monitor Bently Nevada defectuoso. Lo encontramos en stock aquí y lo enviaron por DHL de inmediato. Volvió a funcionar en 48 horas, lo que realmente salvó nuestra planta.
Encontrar módulos nuevos y originales es fundamental para nuestra seguridad. Este equipo entrega componentes de fábrica con certificación completa. Su compromiso de vender únicamente productos nuevos los convierte en nuestro socio de mayor confianza.
Llevamos dos años abasteciendo aquí piezas de Honeywell y Schneider. Todos nuestros envíos llegan perfectamente embalados, con los precintos originales de fábrica intactos. Ofrecemos una comunicación clara y los mejores plazos de entrega del sector.