KEBA CU313A

Technical Specifications

• Mounting Standard: Standard industrial cabinet rack horizontal plug-in mounting or optional DIN rail vertical bracket adapter
• Overall Dimensions (W × H × D): 100 mm × 80 mm × 300 mm
• Net Unit Weight: 0.72 kg
• Primary Power Supply Input: 24 V DC nominal, operating voltage range 18 V DC – 32 V DC with full surge protection
• Continuous Power Consumption: 8 W – 12 W maximum full-load operation
• Main Processing Core: High-performance 32-bit ARM multi-core processor with hardware floating-point acceleration
• Onboard System RAM: 256 MB DDR3 industrial temperature grade memory
• Onboard Flash Storage: 512 MB internal non-volatile flash memory, SD card expandable up to 32 GB
• Real-Time Clock Module: Rechargeable battery-backed RTC with 10-year data retention lifespan
• Ethernet Interfaces: 2 × isolated 10/100 Mbps RJ45 Ethernet ports, dual independent network segment support
• Fieldbus Interfaces: 1 × high-speed CANopen master port, 2 × isolated RS485 serial ports, 1 × RS232 programming port
• Motion Control Axis Capacity: Maximum 32 synchronized servo axes via CANopen drive bus
• Onboard Digital I/O Capacity: 64 bidirectional discrete I/O points, expandable to 128 via rear rack extension slots
• Program Execution Step Speed: 350 nanoseconds per logic instruction
• Operating Ambient Temperature: -10 °C to +60 °C
• Storage Temperature Band: -25 °C to +85 °C
• Relative Humidity Operating Range: 5% – 95% RH, non-condensing
• Compliance Certifications: CE industrial EMC, UL 61010 safety standard

Function Features

1. Multi-core real-time processor delivers ultra-fast logic and motion instruction execution for high-speed synchronous multi-axis control
2. Native electronic cam, electronic gearbox and gantry synchronisation motion control algorithms pre-installed in firmware
3. Full industrial communication protocol stack supporting Modbus TCP, PROFINET, EtherCAT, CANopen, Modbus RTU
4. Expandable digital I/O architecture supporting rear rack pluggable extension modules for up to 128 discrete signal points
5. Advanced PID closed-loop control with feedforward compensation for high-precision force, speed and position regulation
6. Built-in machine recipe storage system supporting thousands of product parameter sets stored on internal flash or external SD card
7. Complete hardware fault diagnostic suite with real-time error logging, axis drive communication failure tracking and I/O short-circuit event recording
8. Encrypted user program storage and multi-level operator access password authority management

Performance Parameters

• Minimum motion control task cycle time: 100 μs
• Multi-axis synchronisation clock jitter: < 1 μs
• CANopen master bus cycle speed: Minimum 250 μs
• Maximum servo axis position control resolution: 32-bit floating-point position register
• Data logging storage write speed: 1 MB/s continuous SD card recording
• Maximum network communication throughput: 100 Mbps full-duplex Ethernet
• I/O signal response latency: < 50 μs for high-speed digital input terminals

Material Composition

• Main housing frame: Extruded aluminum alloy with matte silver anti-corrosion oxidation coating
• Internal PCB: Multi-layer high-temperature FR4 printed circuit board with industrial automotive grade semiconductors
• Communication connectors: Gold-plated D-Sub and RJ45 shielded connectors for noise immunity
• Terminal blocks: Glass-filled PA66 flame retardant thermoplastic with spring screw clamping terminals
• Passive cooling components: Integrated aluminum heat sink fins on processor power regulation circuit zones

Structural Characteristics

• Horizontal rack plug-in modular design compatible with KEBA standard CU series rack backplane
• Front panel assembly: Multi-digit status display LED segment array, USB programming port, SD card expansion slot
• Rear panel layout: Rack backplane edge connector, power supply terminal block, multi-channel D-Sub fieldbus communication ports
• Segmented internal PCB layout: Main processor zone, motion bus communication zone, digital I/O signal conditioning zone
• Full metal electromagnetic shielding enclosure to eliminate high-frequency drive interference
• Dual side extraction lock levers for hot-swap rack module replacement without full system shutdown
• IP20 protection rating for installation inside industrial control cabinets only

Working Principle

1. Regulated 24 V DC input power passes through surge, reverse polarity and overcurrent protection circuits to supply multi-core main processor and peripheral communication chips
2. Real-time operating system schedules independent high-priority motion control task and low-priority HMI/process logging task threads
3. Digital I/O terminals acquire discrete sensor feedback signals and output switching commands to machine actuators; expandable I/O extension modules increase total signal capacity
4. CANopen and EtherCAT motion bus interfaces transmit target position, speed and torque commands to servo drive units, receiving encoder position feedback data in closed-loop cycles
5. Electronic cam and gearbox algorithms calculate synchronous multi-axis motion trajectories with microsecond-level synchronisation precision
6. Dual Ethernet ports separate machine local HMI communication and factory MES supervisory network data transmission to eliminate network bandwidth conflict
7. RTC module timestamps all fault logs, recipe change events and production cycle data stored in non-volatile flash memory or external SD card storage
8. Onboard watchdog circuit monitors processor operation; triggers safe machine stop interlock and fault alarm upon critical processing failure

Advantage Highlights

1. Ultra-fast 350 ns per instruction execution speed enables high-speed multi-axis synchronous motion for precision automated machinery
2. Expandable rack I/O architecture supports up to 128 digital signal points without additional external PLC hardware
3. Pre-installed electronic cam and gantry synchronisation firmware drastically reduces custom motion programming development time
4. Dual isolated Ethernet network ports achieve physical separation between machine local control network and factory upper-level supervisory network
5. Full passive aluminum heat sink cooling eliminates fan failure risks for continuous 24/7 production operation
6. Comprehensive built-in fault logging system enables rapid machine failure diagnosis and predictive maintenance scheduling

Applicable Industries

Installation Requirements

1. Insert horizontally into standard KEBA CU series rack backplane slots, fully lock dual side extraction levers after seating
2. Maintain minimum 35 mm vertical air gap between adjacent rack modules for convection heat dissipation
3. Cabinet internal cooling air flow rate minimum 0.4 m/s to maintain operating temperature below +60 °C
4. All motion bus and Ethernet communication wiring must use shielded twisted pair cables with single-point cabinet grounding
5. Connect aluminum chassis protective earth terminal to cabinet main earth busbar with minimum 1.5 mm² copper wire
6. Do not install in cabinet compartments containing corrosive chemical vapors or condensing high-humidity atmosphere
7. SD card expansion slot rubber dust plug must remain sealed during normal production operation

Usage Notes

1. Complete full program and recipe backup to external SD card before initiating firmware upgrade procedures
2. Hot-swap module replacement only permitted during scheduled machine downtime to avoid transient motion axis disturbance
3. Calibrate electronic cam synchronisation parameters after every mechanical machine rebuild or servo drive replacement
4. Inspect rack backplane gold-plated edge connectors for oxidation every 12 months of continuous field operation
5. Avoid routing motion bus cables parallel to high-power variable frequency drive power wiring without shielded metal conduit separation
6. Replace RTC backup battery every 5 years to prevent production log timestamp loss during power outages
7. Clean aluminum heat sink fin vents quarterly with dry compressed air to remove accumulated dust blocking thermal dissipation