Description
The Hitachi LYD105A is a high-density digital output module designed for the S10V and S10mini series of industrial Programmable Logic Controllers (PLCs). It is a reliable interface component used to drive actuators, solenoid valves, indicators, and relays in automated manufacturing and process control environments.
Product Parameters (Datasheet)
- Model Number: LYD105A
- Series: Hitachi S10V / S10mini
- Output Type: Transistor Output (Sink type)
- Number of Channels: 32 Channels
- Rated Load Voltage: 12 V DC to 24 V DC (+10% / -15%)
- Max. Load Current: 0.1 A per point (typically 1.6 A per common)
- Response Time: < 1 ms (OFF to ON / ON to OFF)
- Isolation: Optocoupler isolation between internal logic and field side
- External Connection: 40-pin connector (compatible with specialized terminal blocks)
- Status Indicators: 32 Red LEDs for output status visualization
HITACHI LYD105A
HITACHI LYD105A
HITACHI LYD105A
Country of Origin
This PLC module is engineered and manufactured by Hitachi, Ltd. in Japan, ensuring high industrial quality and compatibility with Japanese factory automation standards.
Application Fields
The LYD105A is widely used in high-speed discrete manufacturing:
- Semiconductor Fabrication: Controlling wafer handling robots and pneumatic valves.
- Automotive Assembly: Operating conveyor diverters and sensor-triggered light stacks.
- Packaging Machinery: Managing high-speed solenoids for sorting and labeling.
- Textile Industry: Synchronizing needle controls and tensioning actuators.
- Cleanroom Automation: Controlling environmental status indicators and localized airflow gates.
Product Usage Instructions
- Slot Installation: Insert the LYD105A into an available I/O slot on the S10V/S10mini backplane. Ensure the module is properly locked into place to prevent communication errors.
- Wiring Configuration: Since this is a Sink type output, the load should be connected between the positive supply (+V) and the output terminal. The common (COM) terminal is connected to the negative side of the power supply.
- External Power: Ensure a stabilized 24 V DC power supply is provided to the field side of the module to drive the connected loads.
- Connector Assembly: Use the standard 40-pin connector or a pre-wired terminal block assembly to simplify wiring and reduce the risk of cross-wiring.
- Software Mapping: In the Hitachi S10V/S10mini engineering tool, assign the module’s I/O address. Use the built-in diagnostic functions to verify that the logic state matches the physical LED status on the module face.
Product Technical Description
The LYD105A utilizes an optocoupler-isolated transistor circuit to bridge the high-speed CPU logic with the industrial field environment. Technically, the Sink Output configuration means the module acts as a switch to the ground (0V) for the load. The use of optocouplers ensures that any electrical noise, spikes, or short circuits on the field side do not propagate back to the PLC backplane, protecting the sensitive CPU and memory. Its 32-channel density is optimized for space-saving cabinet designs, allowing a single module to control a large array of small-to-medium power devices without requiring excessive rack space.
Q&A (Common Questions)
- Q: What is the difference between a Sink (LYD105A) and a Source output?
- A: In a Sink output (LYD105A), the PLC switches the “Negative” side of the load. In a Source output, the PLC switches the “Positive” side. Ensure your field devices match this logic.
- Q: Can I drive a large motor directly with this module?
- A: No. The LYD105A is rated for 0.1 A per point. For large motors or heavy inductive loads, you must use the LYD105A to drive an interposing relay or a motor contactor.
- Q: Does the module have built-in short-circuit protection?
- A: While the module has basic protection, it is highly recommended to use external fast-acting fuses on the common lines to prevent damage to the internal transistors in the event of a field short.
- Q: Is it compatible with the S10α (Alpha) series?
- A: It is primarily designed for the S10V and S10mini. While some modules are cross-compatible, always verify the specific backplane connector and software support for the S10α series.
Similar Model Recommendations
- Hitachi LXD105: Corresponding 32-channel digital input module.
- Hitachi LYD105B: Variant with different output current ratings or source logic.
- Hitachi LYE100: Relay output module for higher current AC/DC loads.
- Hitachi LCH100: CPU module for the S10V series.
- Hitachi LPI100: Power supply module for the PLC rack.
For technical support or a quote on the Hitachi LYD105A, please contact our industrial automation technical team.
