The Yokogawa F3CU04-0S/Z01, also cataloged as the F3CU04-0S Temperature Control & PID Module, operates as a dedicated hardware component for closed-loop temperature and process control execution within FA-M3 PLC platforms.
| Parameter | Specification |
|---|---|
| Model | F3CU04-0S/Z01 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 200 g (1.10 lbs packaging weight) |
| Dimensions | 28.9 (W) x 100 (H) x 106.1 (D) mm |
| Operating Temp | 0 deg C to +55 deg C |
| Storage Temp | -20 deg C to +70 deg C |
| Power Consumption | 460 mA at 5 VDC (24 VDC external auxiliary input at 50 mA) |
| Control Loops | 4 loops (independent) |
| Slot Size | Single-slot |
| Input Types | Universal: Thermocouple (15 types), RTD (9 types), DC voltage (mV/V) |
| Sampling Period | 200 ms (4 loops), 100 ms (2 loops) |
| Input Accuracy | +/-0.1% of full scale |
| Input Resolution | 0.1 deg C |
| Isolation | Photocoupler and transformer isolation, withstand 1500 VAC for 1 min |
| Output Type | Time-proportional PID (open collector, relay/SSR compatible) |
| Alarm Functions | 12 types (upper/lower limit, deviation alarms) |
| Alarm Outputs | 4 points per loop (with relay linkage for alarms 1 & 2) |
| Auto-tuning | Dynamic auto-tuning with fuzzy logic overshoot suppression |
| Control Modes | Cascade control, Heating/Cooling control supported |
The module incorporates transformer and photocoupler isolation across input channels, yielding a dielectric withstand strength of 1500 VAC for 1 minute between signal inputs and internal logic circuitry. Integrated cold junction compensation (CJC) processing operates across all configurable thermocouple ranges, converting microvolt-level thermoelectric potentials into calibrated 0.1 deg C digital values. Sensor input terminals support universal wiring topologies, allowing differential analog sampling for thermocouples, 3-wire RTDs, and low-level DC voltage inputs without external signal conditioning barriers.
Q: What input sampling speeds are achieved across active control loops? A: The module executes input sampling and PID calculation every 200 ms when operating all 4 loops, or accelerates to 100 ms when restricted to 2 loops.
Q: What cold junction compensation and isolation features protect the temperature inputs?
A: Internal CJC circuitry auto-corrects thermocouple readings while transformer and photocoupler isolation prevents field noise up to 1500 VAC from entering the FA-M3 backplane bus.
Q: How does the dynamic auto-tuning capability handle setpoint variations? A: The module calculates optimal PID parameters automatically upon startup and recalculates constants when operators adjust setpoints or process conditions shift during operation.
Insert the single-slot module into a designated rack slot on the FA-M3 base unit until the lock mechanism engages. Allow a minimum warm-up period of 30 minutes following power application before conducting calibration or active process execution. Route thermocouple and RTD wiring away from high-voltage motor power leads using grounded shielded cable to minimize electromagnetic interference. Ground cable shields at a single point on the main system signal ground busbar. Verify that any threaded conduit entries achieve a minimum engagement of 5 full NPT threads to satisfy enclosure integrity standards.
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