Yokogawa F3YD08-6B 8-Point Output Unit

YOKOGAWA F3YD08-6B Transistor Output Module

Product Introduction

The F3YD08-6B belongs to the Yokogawa FA-M3 series, a family of PLC modules known for high-speed processing and stable control. As a source-type transistor output unit, this module delivers positive voltage to the load when activated. Engineers frequently select this model for tasks requiring fast, repetitive switching of DC solenoids, relays, and indicator lamps. Its photocoupler isolation protects the internal logic circuit from external voltage spikes.

Technical Specifications

The F3YD08-6B module offers eight distinct output channels arranged in a single common configuration. Each point can handle a continuous load current of up to 1 A, while the entire common line supports a total of 4 A. The rated load voltage sits between 12 and 24 VDC, with an operating range spanning 10.2 to 26.4 VDC. Furthermore, the response time for both turn-on and turn-off is a swift 1 ms maximum, allowing for precise timing in high-speed sorting or packaging machinery. The ON voltage drop is capped at 0.5 VDC, ensuring minimal power loss across the output transistor. Meanwhile, the off-state leakage current remains below 0.1 mA, preventing false triggering of sensitive loads.

The output section employs photocoupler isolation, which provides a withstand voltage of 1500 VAC for one minute between the external terminals and the internal circuit. Additionally, an active clamp circuit functions as a surge protector, safeguarding the output elements from inductive kickback generated by relays or solenoids. For inductive loads, Yokogawa recommends installing an additional surge suppressor on the load side to keep voltage spikes within the module's specified range.

Module Power and Physical Traits

Internally, the F3YD08-6B draws 60 mA from the 5 VDC backplane bus. It also requires an external power supply of 12-24 VDC at 10 mA for the output driver circuit. Weighing just 130 g, the module connects to field wiring through a 10-point terminal block with M3.5 screws, which accepts standard ring terminals for secure, vibration-resistant connections.

Environmental and Mechanical Parameters

The unit operates reliably in ambient temperatures from 0 to 55°C and can be stored safely between -20°C and 75°C. Humidity tolerance ranges from 10 to 90% RH non-condensing for both operating and storage conditions. The surrounding atmosphere must be free of corrosive gases, flammable gases, or heavy dust to maintain optical isolation integrity.

Installation Guide

1. Power Off: Verify that the FA-M3 PLC rack power is completely disconnected before inserting the module.

2. Slot Alignment: Align the F3YD08-6B with the guide rails of the base unit and push firmly until the connector engages.

3. Wiring: Connect the external 12-24 VDC power supply to the designated terminals. Wire the loads between the output terminals and the negative side of the external supply (source type).

4. Inductive Load Protection: For relay or solenoid loads, install a flyback diode or surge suppressor across the load terminals to prevent voltage spikes from exceeding the module's rating.

5. Verification: Restore power and observe the LED indicators. The LED lights when the corresponding output is ON.

Packaging List

• YOKOGAWA F3YD08-6B Module × 1

• Terminal Block Cover × 1

• Anti-Static Protective Bag × 1

FAQ

Q1: What is the maximum current per common line for the F3YD08-6B?
A1: The module supports a maximum of 4 A per common line across all 8 points. Therefore, the sum of currents for all active outputs on the common must not exceed 4 A.

Q2: Can I use this module to drive a 24 VDC solenoid valve directly?
A2: Yes, provided the valve's inrush and holding current stay below 1 A. However, since solenoid valves are inductive, install a surge suppressor across the coil to protect the output transistor.

Q3: What is the difference between the F3YD08-6A and the F3YD08-6B?
A3: The "-6A" variant is a sink-type (current-sinking) output, while the F3YD08-6B is a source-type (current-sourcing) output. The choice depends on your field wiring common configuration.

Q4: How do I ship this item to my location?
A4: We ship globally via Fedex, UPS, and DHL. The module is packed in anti-static material and a sturdy carton to ensure safe transit.

Q5: Does the F3YD08-6B require an external 24V power supply for the outputs?
A5: Yes. While the module receives logic power (5 VDC) from the PLC backplane, it requires an external 12-24 VDC supply (10 mA) for the output circuit to function.