Danfoss VLT Soft Starter MCD 600

Danfoss VLT® Soft Starter MCD 600

The VLT® Soft Starter MCD 600 combines the latest in advanced controls and protections with an increased level of intelligence for superior performance in fixed-speed applications.

The MCD 600 is more flexible than ever to install, thanks to a wide variety of Ethernet and serial-based communication option cards, application-dedicated smart cards and support for eight languages.

The integrated bypass ensures both extremely high efficiency and harmonic-free operation at full speed, reducing energy consumed and required cooling capacity.

Ease of use is also greatly increased with new capabilities, such as the pump-clean function, PowerThrough operation, and calendar or run time-based scheduling. Furthermore, enhanced protection ensures more uptime.

  • Quick set-up menu – Adjusts key parameters to suit the application, reducing start-up time 
  • Log menu – up to 348 individual events recorded  and eases analysis of the application 
  • Pump clean functionality – Helps to dislodge debris from an impeller without any extra components 
  • Integrated USB port (Parameter copy, data logging, firmware updates) – Reduced start-up/upgrade time and easy access to operational data
  • AAC Adaptive Acceleration Control – Automatically adapts to the chosen starting and stopping profile
  • Reversing contactor control – Allows for soft starting in any direction– Does not require any external contactors
  • Jog (slow-speed operation) – Application flexibility
  • Auto Reset – Less downtime
  • Internal bypass contactors – Save space and wiring, reduces heat dissipation when running, and eliminates costly external components
  • Inside Delta (6-wire connection) – Smaller soft starter can be selected
  • PowerThrough operation – Utilizes 2-phase control when one phase is damaged (shorted SCR)
  • Expanded motor and controller protections (Over/Under-power, Over/Under-voltage) – Additional protection reduces downtime
  • Multiple languages – Eases commissioning, reducing start-up time
  • Onscreen, dynamic QR-codes – Provides information about the MCD 600, including serial number and failure information

Mains voltage (L1, L2, L3) 

  • MCD6-xxxxB-T5 200-525 VAC (±10%) 
  • MCD6-xxxxB-T7 380-690 VAC (±10%) (in-line connection)

Control voltage (terminals A4, A5, A6)

  • CV1 (A8, A9): 24 VAC/VDC (±20%), 2.8 A
  • CV2 (A8, A9): 110-120 VAC (+10%/-15%), 600 mA
  • CV2 (A8, A9): 220-240 VAC (+10%/-15%), 600 mA
  • Mains frequency: 50/60 Hz (± 5%)
  • Rated insulation voltage to earth: 690 VAC
  • Rated impulse withstand voltage: 6 kV
  • Form designation: Bypassed or continuous, semiconductor motor starter form 1
Short circuit capability 
  • Coordination with semiconductor fuses: Type 2 
  • Coordination with HRC fuses: Type 1

Electromagnetic capability (compliant with EU Directive 2014/35/EU)

  • EMC Immunity IEC 60947-4-2
  • EMC Emissions IEC 60947-4-2 Class B

Inputs

  • Input rating Active 24 VDC, 8 mA (approximately)
  • Motor thermistor (TER-05, TER-06) Trip >3.6 kΩ, reset >1.6 kΩ

Outputs

  • Relay outputs: 10 A @ 250 VAC resistive, 5 A @ 250 VAC AC15 pf 0.3
  • Main Contactor (13, 14): Normally open
  • Relay output A (21, 22, 23): Changeover
  • Relay output B (33, 34): Normally open
  • Analog Output (AO-07, AO-08): 0-20 mA or 4-20 mA (selectable)
  • Maximum load: 600 Ω (12 VDC @ 20 mA) (accuracy ±5%)
Environmental Protection 
  • MCD6-0020B ~ MCD6-0129B: IP20 
  • Protection MCD6-0144B ~ MCD6-0579C: IP00 
  • Operating temperature: -10° C to 60° C, above 40° C with derating 
  • Storage temperature: -25° C to + 60° C 
  • Operating altitude: 0-1000 m, above 1000 m with derating 
  • Humidity: 5% to 95% relative humidity 
  • Pollution degree: Pollution Degree 3 
  • Vibration: IEC 60068-2-6