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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | E2384-E4-1100 |
| Application | Up to 4 LoadPorts |
| Communication | E23 / E84 protocol |
| Transceiver Compatibility | Hokuyo infrared (IR) transceivers |
| Mounting Style | Embedded / shelf-mount |
| Enclosure | EMI shielded |
| Dual-Height Support | Floor + top mounting for AGV / OHV |
| Opto-Isolation | Optional add-on |
| Typical Use | Semiconductor process & transport equipment |
| Environment | Harsh internal equipment environments |
4. Product Introduction
The Objective Solutions E2384-E4-1100 is an Easy E23/E84 controller designed for semiconductor process and transport equipment with up to four LoadPorts. It interfaces with Hokuyo infrared transceivers to support both AGV (Automated Guided Vehicle) and OHV (Overhead Hoist Vehicle) material handling systems.
The unit features an EMI-shielded enclosure suitable for installation inside high-powered process tools. It can be used on dual-LoadPort tools with transceivers mounted at both floor and top positions, enabling flexible vehicle access. An optional opto-isolation upgrade is available for non-Hokuyo transceiver setups.
E2384-E4-1100
E2384-E4-1100
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No E84 handshake with vehicle | Transceiver misalignment or failure | ✅ High | Verify Hokuyo IR signal strength and alignment | Clean lenses; check transceiver power and cabling |
| Intermittent communication | EMI interference or grounding issue | ✅ High | Inspect shield integrity and ground connections | Improve grounding; confirm EMI enclosure seating |
| Only some LoadPorts respond | Wiring or port configuration error | ✅ High | Test each LoadPort channel individually | Verify internal wiring and software configuration |
| Controller does not power up | Supply voltage or internal fault | ✅ Medium | Measure input power at terminals | Confirm correct supply; replace unit if dead |
| AGV works but OHV does not | Missing top-mounted transceiver | ✅ Medium | Confirm dual-height transceiver installation | Install/verify upper transceiver for OHV support |
| Opto-isolation related faults | Isolation module not installed or failed | ❌ Low | Check if optional isolation is required for the setup | Add isolation only if using non-Hokuyo devices |
If the controller fails basic communication tests with known-good transceivers and vehicles, photograph the unit labels, connector layout, and any status indicators, then contact support with the tool type and vehicle system details.
6. Frequently Asked Questions (FAQ)
Q: What is the difference between E2384-E4-1100 and E2384-E2-1100?
A: The E4 version supports up to 4 LoadPorts. The E2 version is limited to 2 LoadPorts (or single LoadPort with dual-height transceivers).
Q: Does it require opto-isolation?
A: Not when used with Hokuyo IR transceivers. Opto-isolation is available as an optional add-on for other transceiver types.
Q: Can it support both AGV and OHV on the same tool?
A: Yes. When transceivers are mounted at both floor and top positions, the controller enables operation with both AGV and overhead hoist vehicles.
Q: Is this module still in production?
A: Availability is limited to surplus or secondary-market stock. Confirm current inventory before ordering for critical tools.
Q: What environment is it designed for?
A: The EMI-shielded enclosure is intended for installation inside high-powered process equipment where electrical noise is present.
Q: Why is a surplus unit priced lower than a new custom interface?
A: This is a specialized, relatively low-volume semiconductor equipment module. Pricing reflects secondary-market availability. Units are typically tested for basic power-up and communication function, with limited warranty provided.
Q: What should I verify before installing a replacement?
A: Confirm the number of LoadPorts, transceiver type (Hokuyo recommended), dual-height requirements, and exact connector pinout. Photograph the existing installation and note any custom wiring before removal.
