18F5A1H-360F KEB Combivert F5 22kW 400V Servo Inverter Fast Ship

System Architecture & Technical Outline

KEB Combivert F5 Controlled Servo Inverter Specifications

The 18F5A1H-360F is a high-performance controlled servo inverter designed within the KEB Combivert F5 framework for precise closed-loop and open-loop dynamic motor positioning. Operating at a 35 kVA apparent power rating, it manages continuous shaft outputs of up to 22 kW (30 HP) on standard 3-phase 400V lines, handling nominal output currents up to 50A with dynamic peak bursts reaching 75.0A.

Engineered with an internal GTR7 braking chopper and an optimized air-cooler heatsink topology, the module delivers smooth motor regulation across switching frequencies up to 8 kHz and output frequencies up to 599 Hz.

Engineering Specification Matrix

Industrial Application Compatibility & Onboard Surveillance

Target Equipment & Diagnostic Mechanisms

• Target Applications: Precision servo positioning tables, high-torque industrial mixers, multi-axis packaging lines, metal stamping presses, plastic injection feeds, and automated material handling elevators.
• Overcurrent & Short-Circuit Tracking: High-speed hardware comparison circuits monitor motor terminal currents, triggering immediate IGBT shutoff if phase current breaches the 75.0A peak limit.
• Overvoltage & Dynamic Braking Control: The internal GTR7 chopper continuously senses the DC bus voltage during negative acceleration ramps, engaging external braking resistors when bus limits are exceeded.
• Thermal Management Watchdog: Onboard thermistors inside the power module measure heatsink junction temperatures, enforcing dynamic air cooling fan speeds and generating over-temperature fault flags before power component degradation occurs.
• Phase Loss & Line Supervision: Continuous mains monitoring detects phase asymmetry or dropouts across the 305...528V AC input terminals, locking out drive execution to protect the rectifier bridge.

Global PLC Spare HUB's Insight

Field Installation & Engineering Evaluation

• The 18F5A1H-360F provides an excellent power-to-size balance for 22 kW servo applications, fitting into panel depths of 255 mm without requiring external braking chopper modules.
• Operating at an 8 kHz switching frequency ensures smooth current waveforms for low-torque ripple performance in servo positioning, though proper panel cooling must handle the thermal dissipation generated by the forced air cooler.
• The 75.0A short-term current limit provides a generous 150% overload margin for high-inertia startup conditions and aggressive deceleration cycles.
• When replacing legacy F5 servo units, ensure parameter configurations matching the encoder feedback interface board are uploaded correctly prior to full-load operation.

Supply Protocols & Warranty Terms

Global Logistics & Support

• Fully backed by a 12-month replacement warranty.
• Fast international dispatch available via FedEx, UPS, and DHL.
• Shipped with ESD protection and comprehensive hardware testing verification.

Frequently Asked Questions (FAQ)

Technical Selection & Maintenance Guidance

Q: How does the GTR7 brake transistor function during rapid stopping profiles?
A: The internal GTR7 transistor monitors the DC bus voltage and automatically switches regenerative current into an external braking resistor when power feeds back from the deceleration load.

Q: What panel spacing is required around the 297 x 330 x 255 mm chassis?
A: Maintain a minimum clearance of 100 mm above and below the air cooler housing to allow unimpeded vertical airflow across the heatsink fins.

Q: Can this drive run in open-loop V/f mode if encoder feedback is disconnected?
A: Yes, while optimized as a controlled servo inverter, the F5 software permits switching control algorithms to standard V/f or sensorless vector control for commissioning or emergency backup runs.

Q: What precautions should be taken when running at the 8 kHz default switching frequency?
A: High switching frequencies reduce acoustic motor noise but generate higher heat losses; verify that panel ventilation can dissipate thermal output under full 50A continuous load.

Q: How do you prevent nuisance overvoltage trips on long acceleration/deceleration cycles?
A: Calculate the total load inertia, lower the deceleration ramp rate, or verify that an appropriately rated braking resistor is connected directly to the GTR7 terminals.

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