Description

Yokogawa F3YC08-0C FA-M3 Contact Output Module

The Yokogawa F3YC08-0C, also cataloged as the F3YC08-0C Contact Output Module, operates as a dedicated hardware component for switching discrete field devices within the FA-M3 PLC system.

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa F3YC08-0C
Origin	Japan
Weight	170 g
Dimensions	Standard FA-M3 module size
OperatingTemp	0 to 55 degC
PowerConsumption	75 mA typical at 5 V DC
OutputType	No-voltage contact, relay output
NumberOfOutputs	8 points
MaximumSwitchingVoltage	250 V AC, 30 V DC
MaximumSwitchingCurrent	2 A per point
CommonConfiguration	Separate common per channel
IsolationMethod	Transformer isolation for each input/output
ONResistance	Max 200 ohm
OFFResistance	Min 100 kΩ
InputResponseTime	Configurable: 0 μs, 62.5 μs, 250 μs, 1 ms, 16 ms
TerminalType	10-point M3.5 screw detachable block

Channel-to-Channel Isolation

Each output point is independently isolated via relay contacts, allowing simultaneous control of mixed-voltage AC and DC devices. The mechanical isolation ensures no cross-talk occurs between channels. This isolation also protects the PLC backplane from voltage transients originating in field wiring. The module design is compatible with 4-20 mA HART loop systems, maintaining signal integrity across industrial process networks.

Frequently Asked Questions

Q: Can the module be hot-swapped during operation?
A: The detachable terminal block allows for replacement of the module without disconnecting field wiring, but only when the PLC is in a safe standby state. Energized outputs should be considered live.

Q: What is the maximum simultaneous ON ratio for outputs?
A: The module supports up to 100% of outputs turned on simultaneously, within thermal limits defined by Yokogawa.

Q: How is the input response time configured?
A: Response time can be set via the PLC CPU for 0 μs, 62.5 μs, 250 μs, 1 ms, or 16 ms. Effective ON/OFF switching delay is sampling period plus 1 ms max.

Field Installation Guidelines

• Mount the module on the FA-M3 standard DIN rail slot. Ensure proper alignment to avoid stress on connector pins.
• Connect separate commons per channel as indicated to prevent unintended current paths.
• Route signal and power wires in separate conduits to minimize electromagnetic interference.
• Use M3.5 screws to secure field wiring to the detachable terminal block. Torque should comply with standard industrial wiring practices.
• Ground module shield and surrounding metal panel to maintain EMC compliance.

Specifications

• Brand: Yokogawa

Advantages

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