AKM43G-ACSN2-02

Synchronous Servo Motor – English Instruction Manual

1. GENERAL DESCRIPTION

2. MODEL NUMBER DEFINITION

• AKM: Kollmorgen AKM servo motor series

• 4: Frame size 4 (60×60 mm IEC flange)

• 3: Stack length 3 (medium)

• G: Winding G (400/480 VAC, 640 VDC max bus)

• A: Standard IEC flange mount (IM B5)

• C: No holding brake

• S: Smooth shaft, no keyway

• N: Standard shaft seal

• 2: Incremental encoder (2048 ppr, Hall commutation)

• 02: Design revision / minor modification

3. TECHNICAL SPECIFICATIONS

Electrical Data

• Rated power: 1.49 kW

• Rated torque: 2.81 Nm (continuous)

• Stall torque: 4.60 Nm

• Rated current: 4.67 Arms

• Max speed: 6,000 rpm

• Winding resistance: 2.81 Ω (line‑to‑line @ 25°C)

• Insulation class: F (155°C)

• Voltage range: 400/480 VAC; 320–640 VDC bus

Mechanical Data

• Flange: 60×60 mm IEC (NEMA 24 equivalent)

• Shaft: 24 mm diameter, smooth (no keyway)

• Protection class: IP20 (standard; optional IP65)

• Vibration class: N (DIN EN 60034‑14)

• Brake: None

• Feedback: Incremental encoder, 2048 ppr, Hall‑effect commutation

• Connectors: Dual M23, 270° rotatable (power + feedback)

• Weight: approx. 4.5–5.0 kg

• Ambient temperature: 0 °C to +40 °C (operation)

• Humidity: 95% rel. humidity, non‑condensing

Shaft Loads

• Max radial load: 220 N

• Max axial load: 90 N

4. KEY FEATURES

• High power density: 1.49 kW in a compact 60 mm flange.

• 400/480 VAC high‑voltage winding: Optimized for 640 VDC bus systems.

• 2048 ppr incremental encoder: High resolution + Hall signals for reliable commutation.

• 270° rotatable M23 connectors: Flexible cable routing.

• IP20 protection: For clean, dry industrial environments (IP65 optional).

• Brushless design: Low maintenance, long service life.

• PTC thermistor protection: Over‑temperature monitoring in stator windings.

• No brake: Reduces cost and length for horizontal‑axis applications.

5. APPLICATIONS

• High‑dynamic positioning systems

• Packaging, printing, textile machinery

• CNC machines, robotics, material handling

• Horizontal motion axes (no brake required)

• 400/480 VAC industrial automation systems

6. COMPATIBLE DRIVES

• Kollmorgen AKD / AKD2G series 400/480 VAC servo drives.

7. INSTALLATION & WIRING (SUMMARY)

Mounting

• Use a clean, flat, rigid surface.

• Secure with 4×M6 screws; torque to 8–10 Nm.

• Align shaft coupling to avoid radial/axial overloads.

Wiring

• Power: Shielded 3‑phase cable to M23 power connector; ground shield at drive end.

• Feedback: Encoder cable to M23 feedback connector; separate from power cables.

• EMC: Separate power/feedback cables from control cables; use shielded cables throughout.

8. MAINTENANCE

• Bearings: Lubricated for life; no re‑greasing needed.

• Seals: Inspect periodically (if IP65 option is fitted).

• Connections: Check for tightness/corrosion; keep connectors dry.

• Diagnostics: Use Kollmorgen WorkBench software for fault monitoring and tuning.

9. SAFETY NOTES

• Disconnect power before installation/maintenance; motor remains live briefly after stop.

• Ground motor housing properly to avoid electric shock.

• Do not exceed max speed (6,000 rpm) or stall torque (4.60 Nm); risk of damage/injury.

• No internal brake; for vertical axes, add external brake or counterbalance.