The Hitachi LYD000A is a digital input module for Hitachi industrial control systems. In Stock Original New Unused.
Product Condition
Original New with One Year WarrantyParts Available
In Stock and Same Day ShippingDelivery Mode
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sales8@amikon.cnWhatsapp/Mob:
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Technical Specifications
• The module provides 16 digital input (DI) channels to receive external switching contact statuses.
• The unit operates on a 24 VDC nominal input to match standard DC control networks.
• Optocoupler isolation is present between the field side and the logic side, with a voltage rating ≥ 500 VAC.
• The response time for input signal status transitions is ≤ 1 millisecond, limiting latency in data transfer.
The module connects external switches to the internal controller. It collects 24V DC switching signals and converts these input states into digital data for the controller memory. This unit operates in control networks of power plants, chemical sites, and manufacturing facilities to monitor the status of pumps, valves, and interlocking loops.
|
Manufacturer |
HITACHI |
|
Model |
LYD000A |
|
Operating Voltage Range |
15V DC to 30V DC |
|
Response Time (OFF to ON) |
≤ 1.0 ms |
|
Response Time (ON to OFF) |
≤ 1.0 ms |
|
Protection Rating |
IP20 |
|
Isolation |
Photocoupler Isolation |
|
Dimensions (W x H x D) |
24 x 185 x 314 mm |
|
Weight |
0.25 kg |
Hardware Structure and Thermal Mechanism
The module uses low-power semiconductor chips and a heat-dissipation enclosure for continuous operation inside sealed, unventilated control cabinets. Photocoupler isolation elements are placed between the input channels and the internal logic backplane bus to block external electromagnetic interference and transient voltage from affecting the controller core. Its modular physical layout allows direct replacement on the rack.
Lifecycle and Market Status
The Hitachi LYD000A is a legacy component belonging to historical Hitachi industrial control systems. The manufacturer has discontinued standard production of this model. It remains in demand and circulates within the global surplus, refurbished, and obsolete spare parts markets for the maintenance and repair of existing installed equipment.
Technical FAQ
Q: How to use products like the LYD000A?
A: Install the module into the system rack, connect the 24 VDC signal lines from field equipment, and transfer ON/OFF data to the controller via the backplane bus.
Q: Which system racks are compatible with the LYD000A?
A: It is compatible with HITACHI H-Series PLC, EH-150, and HiSPECT DCS system racks, such as the GD510.
Q: Which field elements does the LYD000A monitor?
A: It monitors the power ON/OFF statuses of pumps, valves, relay contacts, and interlocking circuits.
Q: Through what components does the LYD000A block transient voltages?
A: It blocks voltage impacts through optocoupler isolation elements placed between input channels and the internal logic bus.
Q: Are your products brand new?
A: Yes. We only supply 100% original and brand-new products. All items are sourced through authorized channels and have never been used or refurbished.
Q: Why can customers buy with confidence?
A: Because every product is backed by our 1-Year Warranty Guarantee of Quality, ensuring reliability, customer satisfaction, and long-term support after delivery.
Q: Do you provide international shipping?
A: Yes. We ship products to customers worldwide using reliable international logistics services such as EMS, DHL, UPS, and FedEx.
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