Product Short Description
Manufacturer: Delta Tau Data Systems, Inc.
Product Overview:
The ACC-24E2S is a specialized variant of the ACC-24E2 chassis (suffix “S” denoting Special / Safety-oriented configuration). It is a 24-axis EtherCAT motion control platform with potential safety I/O integration, redundancy features, or extended environmental rating.
Description
Technical Specifications:
| Parameter | Value |
|---|---|
| Chassis Model | ACC-24E2S |
| Maximum Axes | 24 Servo Axes |
| Protocol | EtherCAT (100 Mbps) |
| Processor | PMAC-2 DSP (DSP56311 @ 40 MHz) |
| Servo Update Rate | 62.5 μs to 1 ms |
| I/O | Up to 192 Digital / 32 Analog |
| Safety I/O | Supports safety I/O modules (SIL-rated) |
| Power | 24 VDC |
| Dimensions | 483 x 432 x 133 mm (4U rack) |
| Weight | ~7.0 kg (slightly heavier due to safety modules) |
| Temperature | 0°C to +55°C (extended option available) |
Suffix “S” Designation Features:
- Safety-rated I/O support — compatible with SafeDC / safety relay modules
- Redundant EtherCAT ports — dual network for failover
- Extended diagnostic LEDs — per-axis fault monitoring
- Conformal-coated PCB — enhanced environmental protection
Applicable Industries:
- Safety-critical CNC machines
- Robotic cells with safety interlocks
- Aerospace / Defense manufacturing
9. Delta TAU ACC28B-A-D — INTERFACE 24 AXIS
Product Name: Delta Tau ACC28B-A-D — 24-Axis Motion Controller Interface
Product Series: Delta Tau ACC Series — ACC28B Platform
Product Type: 24-Axis EtherCAT Motion Controller — Interface Module
Manufacturer: Delta Tau Data Systems, Inc.
Product Overview:
The ACC28B-A-D is a 24-axis motion controller interface from Delta Tau’s ACC product family. It functions as the main communication and I/O interface board for systems requiring 24-axis coordination. The suffix breakdown: ACC28B = platform, A = variant, D = interface type. This unit provides the EtherCAT master interface, digital/analog I/O, and servo drive connectivity for up to 24 axes.
Technical Specifications:
| Parameter | Value |
|---|---|
| Model | ACC28B-A-D |
| Axis Capacity | 24 Axes |
| Interface Type | EtherCAT Master + Digital/Analog I/O |
| Processor | PMAC-2 DSP (DSP56311 @ 40 MHz) |
| Communication | EtherCAT 100 Mbps |
| Servo Update | 62.5 μs to 1 ms |
| Digital I/O | Up to 96 points (onboard + modules) |
| Analog I/O | Up to 16 channels (16-bit resolution) |
| Encoder Input | 20-bit (quadrature, differential) |
| Power | 24 VDC |
| Dimensions | Approx. 305 x 203 mm (board format) |
| Operating Temp | 0°C to +55°C |
| Standards | CE, FCC, UL |
Material Composition:
| Component | Material |
|---|---|
| PCB | FR-4, 6-layer, conformal coated |
| Connectors | D-Sub, MIL-DTL circular, RJ45 (EtherCAT) |
| Housing | Aluminum (if rack-mounted) / Metal shield can |
Structural Features:
- Board-level module — installs into ACC chassis backplane
- EtherCAT RJ45 port — primary servo network
- D-Sub connectors — encoder, I/O, analog
- LED indicators — per-axis status, EtherCAT link, error
Functional Characteristics:
- 24-axis real-time coordinated interpolation
- EtherCAT distributed clock (DC) synchronization — <1 μs jitter
- G-Code interpreter / PMAC C language
- Home, limit, probe inputs — per axis
- PWM / Step-Dir outputs — for servo/stepper drives
Applicable Industries:
- Multi-axis CNC machining centers
- Parallel kinematics machines
- High-speed pick-and-place systems
- Semiconductor wafer handling
Installation Notes:
- Insert into ACC chassis backplane with proper alignment
- Connect EtherCAT cable to first servo drive
- Provide 24 VDC power with noise filtering






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