Description
Key Technical Specifications
- Model Number: ACC-24E2S-DB
- Manufacturer: DELTA TAU Data Systems
- Series: UMAC / MACRO Station Expansion Pack
- Product Type: Axis Expansion Board
- Channel Count: 4 Channels (PMAC2-style stepper/encoder/MLDT)
- Output Compatibility: RS422 compatible (Differential or Single-ended 5V)
- Form Factor: Compact 3U Industrial Rack Size
- Processor: None (Contains highly integrated 4-channel Servo IC)
- Data Transfer: High-speed UBUS direct to CPU
- Connectivity: DB-style front panel connectors
- Expansion Capacity: Up to 8 boards per UMAC (32 channels)
DELTA-TAU-ACC-24E2S-DB
Functional Role & Application Analysis
The DELTA-TAU ACC-24E2S-DB is a specialized axis expansion board designed to extend the motion control capabilities of UMAC and Ultralite/MACRO Station controllers. It solves the critical need for scaling up stepper motor interfaces and dual-feedback encoder systems without upgrading the entire CPU architecture. By utilizing a highly integrated 4-channel PMAC2-style servo IC, this module handles pulse and direction commands directly at the board level, passing processed data to the main CPU via the high-speed UBUS.
Field engineers use this card to add dense I/O and precise feedback loops to complex motion control systems. Its lack of an onboard processor means it relies entirely on the host CPU, keeping the card footprint compact and cost-effective for high-channel-count applications.
- Stepper Motor Control: Provides up to 32 additional stepper interface channels per UMAC for driving multi-axis gantry or pick-and-place systems.
- Dual Feedback Systems: Processes four encoders on a single 3U board, ideal for closed-loop stepper applications requiring high positional accuracy.
- MACRO Station Expansion: Connects directly to MACRO Station CPUs (limited to 2 boards per CPU due to 8-channel servo data limits) for distributed motion control.
- Legacy System Maintenance: Replaces aging or damaged expansion cards in existing PMAC2/UMAC racks to restore full machine functionality.
Our Quality Standard & Testing Process
We understand that the cost of an unreliable part is far greater than its purchase price. A failed expansion board can halt multi-axis synchronization and crash production. We have established a rigorous, multi-stage testing process to ensure every ACC-24E2S-DB we ship is 100% functional and ready for immediate deployment.
- Visual & Component Inspection: All boards undergo professional cleaning and high-magnification visual inspection. We verify there is no physical damage to the DB connectors, compromised solder joints, or degraded Servo ICs.
- Live System Test: The module is installed in a live DELTA TAU 3U test rack and run for 24 hours. We monitor UBUS communication integrity, thermal performance, and continuous data exchange with the host CPU.
- Full-Function Diagnostics: We simulate pulse/direction commands and encoder feedback signals across all 4 channels. We verify RS422 output levels and confirm the module accurately processes MLDT and stepper signals.
- Warranty Backing: Only parts that pass all diagnostic tests are approved for shipment. Every unit is backed by our full 12-month warranty and comes with a comprehensive test report.
DELTA-TAU-ACC-24E2S-DB
Compatibility & Migration Paths
To ensure this ACC-24E2S-DB is 100% compatible with your system, you must check these key compatibility points. Failure to verify this is a common project risk that leads to costly commissioning delays.
- Host CPU Verification: Confirm whether you are using a UMAC or MACRO Station CPU. UMAC supports up to 8 boards, while MACRO Station CPUs are strictly limited to 2 boards due to servo data channel restrictions.
- Connector Type: The “-DB” suffix indicates DB-style front panel connectors. Verify this matches your existing cabling harness; do not mix with TB (Terminal Block) variants without an adapter.
- Signal Configuration: This board supports both differential and single-ended 5V configurations. Ensure your jumper settings and amplifier inputs match the board’s configured output mode.
- Get Expert Help: Unsure about your UMAC configuration or MACRO channel limits? Contact our technical team today for a free compatibility check and migration assessment.
