Technical Specifications​

Mains input: single or three-phase 230 VAC ±10%, 50/60 Hz

Continuous output: 4.6 kVA

Continuous RMS current: 12 A

Peak RMS current: 30 A for up to 30 s

Feedback interfaces: EnDat 2.1/2.2, HiRes, sine/cosine 1 Vpp, A/B/Z incremental

Motion communication: SERCOS III, RS485 Modbus RTU, Ethernet/IP; all isolated

Control modes: position closed-loop, speed closed-loop, torque closed-loop

Digital I/O: 16 isolated inputs, 8 isolated outputs

Dimensions: 110 mm width × 260 mm height × 165 mm depth

Mass: 3.85 kg for PRD-P310250Z-55 reinforced variant

Protection: IP00, intended for installation inside an enclosure

Operating temperature: 0 to +45 °C, non-condensing

Storage temperature: -20 to +70 °C

Humidity: 5–90 % RH non-condensing

Hazardous-area rating for Z-55 variant: IEC 61241 Zone 2, Ex nA IIC T4; signal isolation 1500 Vrms power-to-signal

Functional Features​

Electronic gearing, electronic cam and flying-shear functions. Automatic encoder calibration, dynamic braking circuit and external brake-resistor terminal. Full fault diagnostics for overcurrent, overvoltage, undervoltage, overtemperature, encoder loss and short-circuit. Reinforced isolation barriers between power, encoder and communication circuits in the Z-55 variant. Anti-corrosion acrylic conformal coating for solvent vapor and light chemical exposure.

Application Scenarios​

Machine tools, packaging machines, material handling, injection or hybrid press auxiliaries, printing systems and process skids where Zone 2 pneumatic or flammable-gas containment requires isolated servo control.

Performance Parameters​

Position-loop bandwidth: up to 1200 Hz

Speed-loop bandwidth: up to 800 Hz

Position repeatability: ±1 encoder pulse with compliant feedback

SERCOS synchronization jitter: 0.5 µs or less

Peak torque support: 250 % of rated continuous motor torque for defined overload periods

MTBF: 88,000 hours under Zone 2 rated ambient conditions for the reinforced variant

Material Composition​

Housing: cold-rolled steel with anti-corrosion epoxy primer and matte black topcoat

Power board: high-temperature heavy-copper FR4 with acrylic conformal coating

Heatsink: sealed extruded aluminum fins with anti-oxidation passivation

Terminals: nickel-gold-plated copper contacts in flame-retardant PA66 bases

Internal wiring: cross-linked polyethylene insulation for high-voltage circuits

Structural Characteristics​

Vertical cabinet mounting compatible with DIN rail adapter or rear bolt lugs. Front LED array for power, run, fault, SERCOS and communication. Upper terminal area for mains input, motor output and brake resistor; lower terminal area for encoder, I/O and fieldbus. Internal partition separates high-voltage and low-voltage compartments. Z-55 variant uses sealed cable entries and certified glands for Zone 2 enclosures.

Working Principle​

AC mains passes through the rectifier to form an isolated DC bus. IGBT output stages convert DC to regulated three-phase PWM voltage. The controller receives setpoints from SERCOS III, Ethernet/IP or Modbus, compares them with encoder feedback, and executes PID current, speed and position loops. Regenerative energy is absorbed by the dynamic brake circuit. Digital I/O and safety signals interrupt torque output on fault.

Installation Requirements​

Mount vertically inside a cabinet with unrestricted convection around the heatsink. Install IP00 drives only inside a protective enclosure. Connect protective earth to the designated PE terminal with the specified cable cross-section. Use shielded encoder cable and separate it from motor power cables. For PRD-P310250Z-55, install only in a certified Zone 2 enclosure with approved cable glands and bonding. Follow Kollmorgen torque values for power, motor and signal terminals.

Usage Precautions​

Do not exceed 230 VAC ±10% mains or 45 °C continuous ambient for the Z-55 variant. Check derating if inlet temperature rises above the named range. Verify encoder protocol, motor data and firmware before commissioning. Reset faults only after correcting overcurrent, overtemperature, earth or encoder causes. Inspect brake resistor wiring and conduit seals periodically in hazardous areas.