F3NC34-0N Yokogawa FA-M3 Datasheet & Technical Manual

Yokogawa F3NC34-0N FA-M3 Positioning Module

Yokogawa F3NC34-0N FA-M3 Positioning Module

Availability: 20 left in stock

Yokogawa F3NC34-0N FA-M3 Positioning Module Configured for high-speed pulse counting and 4-axis motion position monitoring in FA-M3 PLC chassis architectures,...

SKU: F3NC34-0N

Manufacturer: Yokogawa
Product No.: F3NC34-0N
Product Type: Counter Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 150g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa F3NC34-0N FA-M3 Positioning Module

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.

Hardware Specifications

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

4-20 mA HART Loop Protocol & Channel-to-Channel Isolation Integration

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.

Frequently Asked Questions

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.

Field Installation Guidelines

Shielded Cable Termination: Connect quadrature encoder and pulse input lines using twisted-shielded pair cables, terminating the shield braid to functional earth (FE) at the panel entry point.
Signal Line Separation: Route high-speed pulse feedback wiring in separate wire ducts away from AC power conductors and VFD motor cables with at least 200 mm physical clearance.
Module Slot Insertion: Seat the module firmly into the FA-M3 base unit slot, tightening the upper locking screw to establish chassis ground continuity and prevent vibration loosening.
Ambient Thermal Clearance: Maintain a clear vertical space of at least 50 mm above and below the module rack to allow natural air convection within ambient operating limits.

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