Description

Yokogawa F3XD16-3F DC Input Module

Configured for receiving discrete DC field signals in FA-M3 controller systems, the Yokogawa F3XD16-3F (F3XD16 DC Input Module) provides direct physical/electrical execution of 24 V DC digital input acquisition from switches, sensors, and relay contacts through 16 input channels.

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa F3XD16-3F
Origin	Japan
Weight	Approx. 175 g
Dimensions	Standard FA-M3 module form factor
OperatingTemp	Not specified in supplied data
PowerConsumption	65 mA at 5 V DC
ProductType	DC Input Module
NumberOfInputs	16
InputType	DC voltage (Sink/Source compatible)
RatedInputVoltage	24 V DC
OperatingVoltageRange	20.4 V DC to 26.4 V DC
RatedInputCurrent	4.1 mA per point at 24 V DC
InputImpedance	Approx. 5.6 kOhm
IsolationMethod	Photocoupler isolation
CommonConfiguration	16 points/common
InputResponseOFFtoON	Selectable from 62.5 us to 16 ms
InputResponseONtoOFF	Selectable from 62.5 us to 16 ms
ExternalConnection	18-point detachable terminal block with M3.5 screws
StatusIndication	Individual channel LED indicators

Channel-to-Channel Signal Isolation Characteristics

The F3XD16-3F employs photocoupler isolation between external field circuits and the internal FA-M3 logic circuitry. Optical isolation prevents direct electrical continuity between field wiring and controller electronics while reducing susceptibility to conducted electrical noise from external devices and cable runs.

The module supports both sink and source wiring configurations, allowing integration with different sensor output types without requiring separate input card variants. Input state transitions are processed using selectable filtering periods ranging from 62.5 us to 16 ms for matching field signal characteristics.

Frequently Asked Questions

Q: Does the F3XD16-3F support both sink and source input devices?
A: Yes. The module is designed for DC voltage inputs and supports both sink and source wiring configurations.

Q: What isolation technology is implemented on the input channels?
A: The module uses photocoupler isolation between external input circuits and the PLC internal logic circuitry.

Q: Can the input response time be adjusted for fast sensor signals?
A: Yes. OFF-to-ON and ON-to-OFF response times are configurable from 62.5 us to 16 ms, allowing filtering selection according to application requirements.

FieldInstallationGuidelines

• Verify field supply voltage remains within the specified 20.4 V DC to 26.4 V DC operating range before commissioning.
• Route input signal cables separately from motor power conductors, contactor wiring, and variable-frequency drive output cables.
• Terminate field wiring on the designated detachable terminal block and verify terminal screw tightness according to site wiring standards.
• Connect cable shields according to plant grounding practices and avoid multiple shield grounding points unless required by site standards.
• Confirm channel LED indications during startup to verify correct field device operation and input assignment.
• De-energize the controller rack before module installation or removal unless the platform documentation explicitly permits energized replacement procedures.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems