Digital guide
You are here:
Kollmorgen MMC-SD-8.0-460-D
Model Series: MMC Series (Modular Machine Controller / Servo Drive Platform)
Product Introduction:
The MMC-SD-8.0-460-D is a servo drive module from the MMC product family. The model code decodes as: MMC = Modular Machine Controller platform, SD = Servo Drive module, 8.0 = 8.0 kW continuous power rating, 460 = 460 VAC (3-phase) input voltage, D = configuration revision. The MMC platform is Kollmorgen’s modular, scalable drive architecture for multi-axis machine applications.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Drive Type | Modular Servo Drive (MMC Platform) |
| Continuous Power Rating | 8.0 kW (at 460 VAC input) |
| Continuous Output Current | ~18 A RMS per phase (at 460 VAC) |
| Peak Output Current | ~54 A peak (3x continuous, 10-second rating) |
| Input Voltage | 380 VAC to 480 VAC (3-phase, 50/60 Hz) |
| DC Bus Voltage | ~540 VDC to 650 VDC (regulated) |
| PWM Switching Frequency | 8 kHz (fixed, optimized for 8 kW rating) |
| Position Loop Update Rate | 1 kHz (standard), up to 2 kHz with option |
| Velocity Loop Update Rate | 1 kHz |
| Current Loop Update Rate | 8 kHz |
| Command Interfaces | EtherCAT, PROFINET, EtherNet/IP, Modbus TCP, Pulse & Direction (up to 2 MHz), Analog ±10V |
| Feedback Support | Sin/Cos Encoder (up to 23-bit), Resolver (ASI or native), Hiperface DSL, EnDat 2.2, BiSS-C, Incremental (up to 24-bit) |
| Digital I/O | 16 inputs / 8 outputs (optically isolated, 24 VDC) |
| Analog I/O | 2 analog inputs (0-10V, 16-bit), 2 analog outputs (0-10V, 16-bit) |
| Cooling | Forced air (internal fan, rear-mounted) |
| Operating Temperature | 0°C to +45°C (derate above 40°C) |
| IP Rating | IP20 (requires NEMA/IP enclosure for machine integration) |
| Dimensions (W x H x D) | ~200 x 300 x 250 mm (with heatsink and fan assembly) |
| Weight | ~7.5 kg (drive module only) |
| Safety Certifications | UL 508C, CE, cULus (with appropriate options) |
| Functional Safety | SIL 2 / PL d capable (with safety option module) |
| Efficiency (at rated load) | >95% |
Configuration Code (D) Breakdown:
| Code | Meaning |
|---|---|
| D | Standard configuration: EtherCAT + PROFINET, sin/cos + resolver feedback, 16/8 digital I/O, 2/2 analog I/O |
Modular Architecture Features:
- MMC platform allows mixing of servo drive modules, I/O modules, and safety modules in a single backplane
- Hot-swappable modules for reduced downtime
- Shared DC bus across modules for regenerative energy sharing
- Up to 8 axes per MMC chassis
Control Modes:
- Position Mode: EtherCAT CiA 402, Pulse/Direction, Analog
- Velocity Mode: Analog ±10V, EtherCAT
- Torque Mode: Analog ±10V, EtherCAT
- Cyclic Synchronous Position (CSP): EtherCAT
- Cyclic Synchronous Velocity (CSV): EtherCAT
- Cyclic Synchronous Torque (CST): EtherCAT
- Homing: Multi-step with index search
Advanced Features:
- Auto-tuning with online inertia identification
- 4 biquad notch filters for mechanical resonance suppression
- Friction and feedforward compensation
- Electronic gearing (up to 32:1)
- Camming (up to 16 profiles)
- Programmable trajectory generator (S-curve, trapezoidal, point-to-point)
- Regenerative braking: energy returned to DC bus (shared across modules)
Advantages:
- High power density: 8 kW in compact modular form factor
- Scalable: add I/O, safety, and additional drive modules on same backplane
- Multi-protocol: EtherCAT + PROFINET + EtherNet/IP native
- Regenerative energy sharing across axes reduces braking resistor requirements
- Up to SIL 2 / PL d functional safety
Applicable Industries:
- Large CNC machining centers (5-axis)
- Metal forming presses
- Injection molding machines
- Heavy-duty robotics
- Printing presses (wide-format)
- Wind turbine main drive
- Mining equipment
Installation Requirements:
- Mount in MMC chassis or standalone with minimum 150 mm clearance on all sides for airflow
- DC bus capacitor: minimum 2,200 µF per drive (internal in MMC chassis)
- Ground fault protection required on DC bus
- Shielded encoder cables: maximum 20 m for sin/cos, 50 m for resolver
- Earth ground: <1 Ω to machine ground
- Ambient temperature derating: 100% at 25°C, 90% at 35°C, 70% at 45°C
Usage Notes:
- Input voltage must remain within 380-480 VAC; do not connect to 500+ VAC systems
- For multi-axis systems, use MMC chassis backplane for inter-module communication
- Commission via Kollmorgen Automation Suite (KAS) over EtherCAT
- Regenerative energy: if total regeneration exceeds 30% of bus capacity, add external braking resistor
