Description

MD810 modular frequency converter!

Where can the MD810 be used?

MD810 is a modular, scalable, easy-to-use product designed for industrial applications requiring multi-drive controls. One or several inverter modules are connected to the power supply module (rectifier), creating a converter set for controlling e.g. multi-section machines operating in the textile, printing, metal processing or food processing industries.

Key features of the MD810

• Power supply 3 x 380 – 480 Vac
• 24 V power supply for the control circuit
• Maximum output frequency 500 Hz
• Degree of protection IP20
• Built-in dynamic brake (22 and 45 kW power modules)
• Autotuning with moving and stationary shaft
• PID controller for external processes

• Carrier frequency up to 12 kHz
• Safe torque Off (STO) function and SIL3 certification (EN 61800-5-2)

Other data

Speed ​​regulation ratio	1:50 – asynchronous motor, U/f control 1:100 – asynchronous motor, SVC control 1:1000 – asynchronous motor, FVC control
Accuracy of speed regulation	±1.0% – U/f control ±0.5% – SVC control ±0.02% – FVC control
Speed ​​fluctuations	±0.5% – SVC control ±0.2% – FVC control
Torque response	< 20 ms – SVC control < 5 ms – FVC control
Torque control accuracy	±5% (above 10kHz) – SVC control ±3% – FVC control
Torque control modes	SVC and FVC
Current overload	115% of rated current for 1 hour 150% for 1 minute 178% for 2 seconds
Torque increase (boost)	Automatic, manual: from 0.1% to 30%
U/f curves	5 characteristics: linear, multi-point, square, fully isolated, partially isolated

MD810 functionality

Energy savings

• Common DC bus confi guration allows sharing of regenerated energy.
• Centralized braking design enables braking energy to be reused.

Durability in harsh environments

• Class 3C2 & 3S2 conformal coating.
• Separate cooling channel for heatsink prevents dust contamination of internal PCBs.
• Applicable ambient temperature range:
  • Operation: -10 – 50°C;
  • Storage: -25 – 70°C.
• Humidity range of 5%-95% (60% in case of corrosive gas).
• Cost-eff ective, built-in DC reactors for smooth current fl ow and reduced harmonic distortion.
• Overload: 150% (for 60 s); 178% (for 2 s).

Easy maintenance

• Common sizes for each power segment enables fewer inventory components to be stored in customer warehouses.
• DC soft charge module enables drive to be independently powered on or off.
• Built in redundancy: if one rectifi er fails, the system can continue operation with reduced capacity (reduced speed and/
  or load).
• PLC/HMI/drive software confi gured through the same network for simple maintenance and lower maintenance costs.
• Software integrates all steps for commissioning, diagnostics and maintenance.

Reduced cabinet size

• Improved power effi ciency results in a smaller cabinet due to reduced rectifi er capacity and reduced braking units.
• Through-hole mounting further reduces cabinet size/volume.
• Compact “2 in 1” dual drive module available for ratings from 1.5 to 18.5 kW.

Fast, easy installation and commissioning

• Simple, plug & play module installation:
  • DC bus connection accessible from the front for easy module installation
  • Safe Torque Off (STO) function eliminates need for output contactors
  • Fewer specialist workers required for installation
  • Rapid module replacement when needed
• One-click network connection with InoDriveShop (see p8).
• Optimized wiring and commissioning:
  • One PLC connection cable
  • One group of input power cables
  • One remote keypad with one cable connects to multiple drives
• Fewer external components: built-in mini bus bars and common DC bus confi guration enables elimination of external supply components (individual protections, braking units and resistors).
• Compatible with open communication fieldbuses like PROFINET, PROFIBUS DP and CANopen.

Have more questions about MD810? We will answer!