Parker CX-DH

Technical Specifications

• Mounting Standard: Vertical DIN 35 mm top hat rail mounting
• Overall Dimensions (W × H × D): 60 mm × 180 mm × 145 mm
• Net Unit Weight: 0.78 kg
• Main Power Input: Single-phase AC 100–240 V, 50/60 Hz
• Control Circuit Auxiliary Power: 24 V DC ±10%
• Continuous Output Rated Current: 10 A RMS
• Peak Overload Output Current: 25 A RMS, sustain duration 3 seconds
• Control Loop Architecture: Triple closed-loop (current / velocity / position) hardware real-time control
• Encoder Feedback Supported Types: Incremental TTL encoder, Sin/Cos encoder, single-turn absolute encoder
• Pulse Command Input Modes: Differential line driver pulse/direction, CW/CCW pulse train
• Industrial Fieldbus Interfaces: Modbus RTU RS485, CANopen DS402 motion protocol
• Onboard Digital I/O: 8 isolated digital inputs, 4 isolated digital outputs
• PWM Switching Frequency: Fixed 16 kHz
• Position Control Resolution: 32-bit floating-point position register
• Operating Ambient Temperature: 0 °C to +50 °C
• Storage Temperature Band: -30 °C to +75 °C
• Relative Humidity Range: 5%–95% RH, non-condensing
• Isolation Voltage Rating: 2000 V AC between power circuit and signal control circuit
• Compliance Certifications: CE EMC, UL safety standard

Function Features

1. Hardware triple closed-loop control delivers ultra-fast dynamic response for high-speed positioning tasks
2. Built-in auto-tune algorithm automatically matches motor electrical parameters for commissioning without manual calculation
3. Multiple position command reception modes support pulse control from external PLC and bus motion command via CANopen
4. Electronic gearbox and position soft limit logic pre-programmed in drive firmware
5. Full-channel isolated digital I/O for home sensor, limit switch, brake output and fault alarm signal transmission
6. Dynamic braking circuit integrated inside unit for rapid motor deceleration during emergency stop events
7. Real-time motor overload, overvoltage, undervoltage, overheat and encoder disconnection fault detection with code storage
8. Built-in electronic cam curve storage for repetitive synchronous positioning cycles without upper controller intervention

Performance Parameters

• Current loop response bandwidth: 3000 Hz
• Velocity loop response bandwidth: 1200 Hz
• Position loop response bandwidth: 400 Hz
• Minimum position command pulse input frequency: 0 Hz, maximum 2 MHz differential pulse
• CANopen motion command update cycle: Minimum 1 ms
• Overheat protection trigger threshold: Internal power module temperature ≥85 °C
• Dynamic brake discharge energy capacity: 120 J single discharge cycle
• Position repeatability after homing cycle: ±1 encoder count

Material Composition

• Outer casing: Cold rolled steel sheet with black anti-rust electrostatic spraying coating
• Internal power substrate: High-temperature insulated aluminum base PCB for power IGBT module heat conduction
• Control circuit board: Double-layer FR4 flame retardant industrial PCB
• Power semiconductor components: Industrial grade IGBT power modules, fast recovery diodes
• Terminal blocks: Glass-filled PA66 thermoplastic with tin-plated copper screw terminals
• Heat dissipation parts: Aluminum alloy fin passive heat sink bonded to power substrate
• Communication connectors: Gold-plated D-Sub encoder feedback port, RS485 terminal block

Structural Characteristics

• Vertical DIN rail compact mounting structure with side metal heat sink fins exposed to cabinet air flow
• Front panel layout: Digital parameter display screen, function operation buttons, fault status LED indicators
• Top terminal area: Main AC power input terminals, motor power output terminals, dynamic brake resistor connection terminals
• Bottom terminal area: 24 V control power supply, digital I/O signal terminals, encoder D-Sub port, CANopen/Modbus communication terminals
• Segmented internal layout: High-voltage power circuit zone isolated by metal barrier from low-voltage signal control zone
• IP20 overall protection rating for cabinet internal installation only
• Integrated DIN rail metal locking bracket for stable anti-vibration mounting

Working Principle

1. Single-phase AC main power passes through EMI filter and rectifier circuit to convert into DC bus voltage for IGBT power inverter module
2. 24 V DC auxiliary power supplies low-voltage control board, encoder feedback acquisition circuit and digital I/O isolation modules
3. Current loop hardware chip samples motor phase current in real time and outputs PWM modulation signal to IGBT module to adjust output torque
4. Encoder feedback circuit collects motor rotor position and velocity data, transmits to velocity loop and position loop arithmetic unit for closed-loop correction
5. External pulse commands or CANopen motion target position values enter position loop controller, calculating velocity setpoints for intermediate velocity closed-loop regulation
6. Auto-tune function injects test excitation signal into motor windings to identify inductance, resistance and back EMF motor parameters automatically
7. Onboard fault monitoring circuit continuously samples DC bus voltage, power module temperature and encoder signal integrity; cuts output power and triggers alarm I/O when abnormal operating thresholds are exceeded

Advantage Highlights

1. Integrated triple closed-loop hardware control realizes superior dynamic positioning performance for high-speed automation equipment
2. All-in-one integrated dynamic braking circuit eliminates external braking resistor cabinet wiring space occupation
3. Dual command input modes (pulse + fieldbus) support both legacy pulse PLC and modern CANopen motion control system upgrade
4. Built-in motor auto-tune drastically reduces on-site commissioning parameter adjustment workload
5. High 2000 V AC isolation between power and signal circuits effectively suppresses industrial site electromagnetic interference
6. Compact DIN rail vertical form factor saves installation space inside small machine control enclosures
7. Comprehensive real-time fault diagnosis system provides numerical fault codes for rapid equipment troubleshooting

Applicable Industries

Installation Requirements

1. Vertically install unit on standard 35 mm DIN rail, lock metal side bracket firmly against rail surface
2. Maintain minimum 50 mm vertical clearance above and below heat sink fins for unobstructed cooling air circulation
3. Separate high-voltage AC power wiring, motor power cables and low-voltage signal/encoder wiring into isolated cable trays with minimum 15 cm separation distance
4. Connect steel casing protective earth terminal to cabinet main earth busbar using 2.5 mm² copper conductor
5. Mount external dynamic braking resistor outside drive casing with dedicated air cooling if continuous high deceleration duty cycle is required
6. Cabinet internal ambient air flow velocity must reach minimum 0.3 m/s to avoid power module overheating
7. Encoder feedback cable must use shielded differential twisted pair cable with single-point shielding grounding at drive side only

Usage Notes

1. Execute full motor auto-tune procedure immediately after initial wiring power-on before running positioning cycles
2. Do not operate drive continuously with internal power module temperature exceeding 75 °C to extend IGBT service life
3. Keep differential pulse command cable total length below 10 meters to prevent pulse signal distortion at maximum input frequency
4. All CANopen bus wiring must comply with DS402 standard termination resistor configuration at bus two endpoints
5. Disconnect main AC power supply before disassembling encoder D-Sub connector to eliminate static damage to feedback chip
6. Quarterly clean aluminum heat sink fins with dry compressed air to remove accumulated conductive dust
7. Match motor rated voltage and rated current strictly to drive output specifications; mismatched motor parameters will trigger permanent overcurrent hardware damage