The Yokogawa F3NC51-0N, also cataloged as the F3NC51-0N Positioning Module, operates as a dedicated hardware component for 1-axis motion positioning execution within FA-M3 PLC platforms. It outputs a -10 to +10 VDC analog velocity command while processing incremental encoder feedback in a semi-closed loop circuit to achieve position control and trajectory generation.
The catalog code for the Yokogawa FA-M3 positioning module breakdown specifies functional attributes:
| Parameter | Specification |
|---|---|
| Model | F3NC51-0N |
| Brand | Yokogawa Electric |
| Origin | Japan |
| Weight | 0.20 kg |
| Dimensions | 100 mm x 25 mm x 90 mm |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | 0.5 A at 5 VDC (backplane powered) |
| Controlled Axes | 1 axis |
| Control Method | Semi-closed loop (-10 to +10 VDC velocity command output) |
| Encoder Support | Incremental (A/B phase, line driver, max 2 Mpps with 4x multiplication) / Absolute |
| Response Time | <= 10 ms |
| Isolation Voltage | 2000 VAC for 1 minute |
The module maintains signal separation between its internal digital processing bus and high-speed field feedback lines. While processing system instructions alongside 4-20 mA HART loop protocol analog channels on adjacent I/O modules, the unit utilizes galvanic isolation up to 2000 VAC to prevent noise coupling. Integrated channel-to-channel isolation suppresses common-mode voltage interference, protecting internal encoder counters and analog velocity command generators from earth potential differences across field drive sub-panels.
Q: Does the F3NC51-0N module require an external power supply for internal logic processing?
A: No. The internal logic and processing circuits draw operational power directly from the FA-M3 backplane bus (approximately 0.5 A at 5 VDC).
Q: What type of encoder signals are supported by the F3NC51-0N positioning module?
A: The module supports differential line-driver incremental encoder inputs (A/B phase) up to 2 Mpps (with 4x multiplication) as well as absolute encoder interfaces.
Q: Can the F3NC51-0N module be replaced while the FA-M3 base rack is powered?
A: No. Power to the FA-M3 base module rack must be turned off before inserting or removing the F3NC51-0N positioning module to prevent electrical damage to backplane pin connections.
Seat the F3NC51-0N module firmly into the designated slot on the FA-M3 base module rack and tighten the top module fixing screw to ground the module frame. Connect encoder inputs and analog command output signals using shielded twisted-pair cables. Ground the cable shield at a single point to the instrument ground bar to prevent ground loops from corrupting differential encoder pulse streams. Route encoder and command signal wiring in separate conduits away from AC power lines, motor leads, or high-voltage relays to prevent electromagnetic interference.
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.