Kollmorgen AKM51G-ANCNR-00 Servo Motor

1. Model Code Definition

Main Model: AKM51G

• AKM: Kollmorgen high-performance permanent magnet synchronous servo motor series

• 5: Frame size 5, 108×108mm IEC standard square flange

• 1: Stack length 1, standard stator stack

• G: High-voltage winding optimized for 560-640V DC bus (400/480V AC input)

Configuration Code: ANCNR

• A: Mounting – 108×108mm IEC standard square flange (N tolerance)

• N: Shaft – Smooth (plain) shaft (no keyway), with M14 threaded end

• C: Feedback – Resolver (16-bit hollow shaft rotary transformer)

• N: Brake – No electromagnetic holding brake

• R: Connector – 2 M23 rotatable right-angle connectors (power + feedback)

Suffix -00

• Standard factory configuration

• IP65 full protection (housing & shaft)

• Class F (155°C) insulation

• Lifetime lubricated bearings

2. Electrical Specifications

• Continuous stall torque: 4.75 N·m

• Rated torque: 1.94 N·m

• Peak torque: 14.2 N·m (estimated)

• Rated power: 1.22 kW

• Rated speed: 6000 rpm (at 560-640V DC bus)

• Max speed: 6000 rpm

• DC bus voltage: 560-640V DC

• Winding: 3-phase, G winding

• Pole pairs: 10 poles (5 pairs)

• Rotor inertia: 0.000342 kg·m²

• Weight: Approx. 4.2 kg

• Insulation class: Class F (155°C)

• Thermal sensor: Built-in thermistor

3. Feedback System (Resolver)

• Type: 16-bit hollow shaft resolver

• Electromagnetic feedback, no optical components

• High resistance to vibration, dust, oil, and high temperatures

• Operating temperature: -40°C to +125°C

• Maintenance-free, long service life

• Requires homing after power-on (incremental)

4. Mechanical Specifications

• Mounting flange: 108×108mm IEC B5

• Output shaft: Smooth (plain) shaft, diameter φ25 mm

• Shaft end: M14 threaded hole for locking collar

• Connectors: 2 M23 rotatable right-angle (power & feedback)

• Protection: IP65 (housing & shaft)

• Housing: Matte black enamel, excellent heat dissipation

• Bearings: Pre-lubricated, maintenance-free (20,000-hour life)

5. Environmental & Certifications

• Operating temperature: -20°C to +40°C

• Storage temperature: -30°C to +85°C

• Humidity: 5–95% RH, non-condensing

• Vibration resistance: Industrial grade

• Certifications: CE, UL, cULus, RoHS

6. Core Features

1. High-speed G winding: Optimized for 6000 rpm operation at 480V AC.

2. Smooth shaft: Precision dynamic performance, ideal for high-speed, low-cogging applications.

3. Resolver feedback: Extreme environment durability, maintenance-free.

4. IP65 protection: Dust-tight and water-splash resistant.

5. Low inertia: Excellent dynamic response for high acceleration/deceleration.

6. Rotatable M23 connectors: Flexible wiring, space-saving.

7. Brake-free design: Low inertia, high efficiency for horizontal axes.

7. Compatible Drives

• Kollmorgen AKD series (P03607, P04807)

• Kollmorgen AKD2G high-voltage series

• Supported protocols: Resolver, EtherCAT, PROFINET, CANopen

8. Typical Applications

• High-speed packaging, labeling, and sorting machines

• Textile machinery, winding systems, spindles

• Printing and converting equipment

• Machine tool spindles and high-speed axes

• Robotics, pick-and-place, high-dynamic positioning

• Applications requiring 6000 rpm, smooth shaft, IP65, and resolver feedback

9. Summary