Digital guide
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Kollmorgen AKM31H-ANCN2-00
Product Introduction: AKM31 is a compact 70×70 mm flange (IEC size) permanent-magnet synchronous brushless servo motor. “H” winding = medium voltage/high speed. “ANCN2-00” decode: A-side standard flange, smooth (no key) shaft, N-side standard tolerance, C = incremental encoder (Hall-effect ComCoder, 2048 pulses/rev), N = no holding brake, 2 = connector orientation (angled M23), 00 = standard.
Detailed content
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Performance Parameters:
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Rated / Stall Torque (continuous @ 100 °C winding rise): 1.23 Nm
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Rated Torque (@ 60 °C rise): 0.98 Nm
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Peak Torque: 4.06 Nm
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Rated Current (continuous @ stall): 5.85 Arms
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Peak Current: ~23.4 Arms
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Max DC Bus Voltage: 160 VDC (compatible with 240 VAC drive secondary bus)
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Rated Speed: up to 6000 rpm (mechanical max ~8000 rpm)
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Rated Power: 0.61 kW (at 160 VDC bus); 0.25 kW (at 75 VDC bus)
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Rotor Inertia: ~0.33 ×10⁻⁴ kg·m² (0.330 kg·cm²)
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Winding Resistance / Inductance: per AKM31H winding table (~0.5 Ω / ~2–3 mH typical)
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Construction & Material:
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Stator: Laminated silicon steel, copper windings, Class F (155 °C) insulation
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Rotor: Neodymium-Iron-Boron (NdFeB) magnets, IP65-rated housing
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Shaft: Ø14 mm smooth (no keyway), machined steel, dynamically balanced
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Flange: 70×70 mm IEC square flange with M6 tap holes, pilot diameter per standard
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Connectors: 2 × angled rotatable M23 connectors (power + feedback)
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Thermal Protection: PTC thermistor (optional on some AKM variants)
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Feedback: Incremental optical encoder 2048 lines × 4 = 8192 counts/rev (quadrature) + Hall-effect commutation signals (U/V/W)
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Mounting: Face-mount via 4 × M6 bolts; align shaft coaxially; coupling must accommodate slight angular misalignment; avoid radial shaft loads exceeding motor spec.
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Precautions: Do not exceed max bus voltage (160 VDC); ensure proper grounding through motor frame; check phase sequence during first power-up; periodic cleaning of shaft seal area in dirty environments.
