Overview
The Yokogawa F3YD32-1P, based on the F3YD32-1P Transistor Output Module designation, executes discrete DC output switching through 32 transistor output points. The module uses sink-type outputs with photocoupler isolation, supports 12 to 24 VDC external load power, and provides short-circuit protection, overheat shutdown, and active-clamp surge suppression.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | F3YD32-1P |
| Brand | Yokogawa |
| Product Type | Transistor Output Module |
| Origin | Japan |
| Weight | 110 g |
| Power Consumption | 160 mA at 5 VDC |
| Number of Output Points | 32 |
| Output Type | Transistor, sink type |
| Common Line Type | 8 points/common |
| Isolation Method | Photocoupler isolation |
| Withstanding Voltage | 1500 VAC for 1 minute between external connection terminals and internal circuit |
| Rated Load Voltage | 12 to 24 VDC |
| Operating Voltage Range | 10.2 to 26.4 VDC |
| Maximum Load Current | 0.1 A per point |
| Maximum Common Current | 0.5 A per common |
| Response Time, OFF to ON | 1 ms max. |
| Response Time, ON to OFF | 1 ms max. |
| ON Voltage | 0.5 VDC max. |
| Off-State Leakage Current | 0.1 mA max. |
| Short-Circuit Protection | Controlled short-circuit current |
| Overheat Protection | Output shutdown |
| Surge Protection | Active-clamp circuit |
| Fuse | None |
| External Power Supply | 12 to 24 VDC, 55 mA |
| External Connection | One 40-pin connector |
| Output Status Display | LED, illuminated when output is ON |
| Output Status When Program Stops | HOLD/RESET, depending on CPU type and configuration |
Digital Output Switching and Protection
The F3YD32-1P provides 32 discrete transistor output channels for DC load switching. Its sink-type output configuration requires compatible load wiring and an external DC supply.
Photocoupler isolation separates the external connection terminals from the internal circuit. The specified withstand voltage is 1500 VAC for one minute. Each output supports a maximum load current of 0.1 A, subject to the common-line current limit of 0.5 A.
The module incorporates several output protection functions:
- Short-circuit protection: Limits short-circuit current.
- Overheat protection: Shuts down outputs under overheat conditions.
- Surge protection: Uses an active-clamp circuit.
- Output indication: LEDs indicate output activation.
The module has no fuse. External circuit protection should therefore be evaluated according to the connected loads and system design.
Frequently Asked Questions (FAQ)
Q: What external voltage does the F3YD32-1P support?
A: The rated load voltage is 12 to 24 VDC, with an operating voltage range of 10.2 to 26.4 VDC.
Q: What are the output current limits?
A: The maximum load current is 0.1 A per output point and 0.5 A per common line. The specified limits must be observed when multiple outputs operate simultaneously.
Q: What happens to the outputs when the sequence program stops?
A: With a sequence CPU, the default status is RESET, and the setting can be configured globally on a module-by-module basis. With a BASIC CPU, the output status is always HOLD, with no setting function.
Field Installation Guidelines
- Verify the module model and connector compatibility before installation.
- Confirm the external DC supply polarity and voltage before connecting loads.
- Wire sink-type outputs according to the load circuit requirements and the manufacturer’s terminal assignment.
- Keep the per-point and per-common current within the specified limits.
- Separate output wiring from high-voltage power and high-noise switching cables where practical.
- Apply appropriate external circuit protection based on the connected load and system requirements.
- Verify output LED indications and the configured HOLD/RESET behavior during commissioning.
- Confirm the complete wiring and grounding requirements against the applicable Yokogawa hardware manual.
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