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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