The Yokogawa F3LR01-0N, also cataloged as the F3LR01-0N Pulse Output Module, operates as a dedicated hardware component for programmable high-speed pulse train generation and motor speed regulation within FA-M3/FA-M3V PLC platforms. Designed for mounting directly into the FA-M3 base unit slot, the module translates internal control commands into single-channel pulse frequencies up to 100 kHz. Built-in photocoupler circuits isolate the internal backplane logic from field-side electrical interference, maintaining signal clarity during rapid acceleration and positioning cycles.
| Parameter | Specification |
|---|---|
| Model | F3LR01-0N |
| Brand | Yokogawa |
| Origin | Japan |
| Module Type | Pulse Output Module |
| System Compatibility | FA-M3 / FA-M3V PLC |
| Number of Channels | 1 output channel |
| Output Signal Type | Pulse train (frequency and duty cycle programmable) |
| Output Voltage Range | 5 to 24 V DC |
| Max Output Frequency | 100 kHz |
| Duty Cycle Range | 10% to 90% (programmable) |
| Counter Capacity | 32-bit |
| Response Time | 10 us or less |
| Isolation Type | Photocoupler isolation between output and system logic |
| Power Consumption | ~0.5 W (Internal current: 220 mA) |
| Operating Temp | 0 to 55 deg C |
| Storage Temp | -20 to 75 deg C |
| Weight | 0.15 kg (0.50 lbs) |
| Dimensions | 25 mm x 100 mm x 120 mm |
The F3LR01-0N module features integrated photocoupler galvanic isolation between its output logic circuits and the internal FA-M3 backplane bus. This design blocks common-mode voltage spikes and suppresses noise coupling across high-frequency switching loops. When integrated alongside standard DCS controllers via 4-20 mA HART loop protocol translation or dedicated PLC interface buses, the unit stabilizes output execution across variable field loads. The internal 32-bit counter tracks output pulses without backplane cycle latency, ensuring consistent signal shaping across the entire 5 to 24 V DC operating range.
Q: Does the F3LR01-0N module support hot-swapping while the FA-M3 base unit is powered?
A: No, the module must not be inserted or removed while the FA-M3 system power is applied. You must completely power down the base unit before replacing or installing the hardware to prevent damage to the backplane connectors.
Q: How does the module handle high electrical noise environments on the field wiring side?
A: The onboard photocoupler isolation breaks direct physical ground connections between the internal CPU logic and external field wiring, attenuating transient voltage spikes and suppressing ground loops up to the design limits of the FA-M3 rack system.
Mount the F3LR01-0N firmly into the designated slot on the FA-M3 base unit rack, ensuring the top and bottom retention latches snap securely into place before restoring system power. Maintain standard enclosure ventilation clearances to permit natural convection cooling across the housing slots during continuous operation.
Connect all 5 to 24 V DC field wiring using shielded twisted-pair conductors to mitigate external electromagnetic interference. Ground the cable shield at a single point on the cabinet functional ground bar using a low-impedance grounding clamp. Keep pulse output signal lines physically separated from high-voltage power conduits and variable frequency drive motor cables to prevent crosstalk noise.
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