The units at a glance

MDR90B-..

Description:  

Technical data:  

Dimension sheet:  

• Sinusoidal supply and energy recovery
• Power factor λ = 1, including in partial load operation
• Only a small transformer connected load required
• Nominal power: 50 kW and 75 kW
• Voltage range: 3 × 380 - 500 V at 50 - 60 Hz
• Controlled DC link voltage: DC 750 V at 3 × AC 400 V
• Overload capacity: 250% of nominal power for 1 s
• Brake chopper for braking resistor integrated
• Increased line tolerance for long supply system cables
• System bus: EtherCAT^®/SBus^PLUS
• Measurement of energy and power flow
• Scope function for detailed diagnostics

MDF90B-..

Description:  

Technical data:  

Dimension sheet:  

• Use with the MDR90B- .. sinusoidal supply and regenerative module
• Suppression of line-bound interference pulses that are caused by the pulsed voltage supply in regenerative operation
• Compact modular design
• Simple connection to the regenerative module via DC link busbars

MDR91B-..

Description:  

Technical data:  

Dimension sheet:  

• Blocked-shaped supply and energy recovery
• Power factor λ > 0.75, in nominal operation
• Small filters and chokes
• Nominal power: 50 kW and 75 kW
• Voltage range: 3 × 380 - 500 V at 50 - 60 Hz
• DC link voltage: DC 560 V at 3 × AC 400 V
• Overload capacity: 250% of nominal power for 1 s
• Brake chopper for braking resistor integrated
• Increased line tolerance for long supply system cables
• System bus: EtherCAT^®/SBus^PLUS
• Measurement of energy and power flow
• Scope function for detailed diagnostics