Introduction; Feature List - Danfoss mcd-500 Operating Instruction

MCD 500 Operating Instruction

2 Introduction

The MCD 500 is an advanced digital soft start solution for motors from 7 kW to 800 kW. MCD 500 soft starters provide a complete range of motor and
system protection features and have been designed for reliable performance in the most demanding installation situations.

2.1.1 Feature List

Models for all connection requirements
• 21 A to 1600 A (in-line connection)
• In-line or inside delta connection
• Internally bypassed up to 215 A
• Mains voltage: 200 - 525 VAC or 380 - 690 VAC
• Control voltage: 24 VAC/VDC, 110 - 120 VAC or 220 - 240 VAC
User-friendly LCP
• Loggings
• Real-time graphs
• SCR conduction bar graph
Tools
• Application setups
• Date and time stamped event log with 99 entries
• 8 most recent trips
• Counters
• Protection simulation
• Output signal simulation
Inputs and Outputs
• Local or remote control input options
(3 x fixed 1 x programmable)
• Relay outputs (3 x programmable)
• Analog programmable output
• 24 VDC 200 mA supply output
Start and run modes
• AAC - Adaptive Acceleration Control
• Constant current
• Current ramp
• Kickstart
• Jog
• Emergency run operation
Stop modes
• AAC - Adaptive Acceleration Control
• Timed voltage ramp soft stop
• DC brake
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Other features
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Comprehensive protection
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MG.17.K2.02 - VLT ® is a registered Danfoss trademark
Soft brake
Emergency stop
Auto start/stop timer
Second order thermal model
Battery backup of clock and thermal model
Optional DeviceNet, Modbus or Profibus communication mod-
ules
Wiring/Connection/Supply
- Motor connection
- Phase sequence
- Power loss
- Individual phase loss
- Mains frequency
Current
- Excess start time
- Current imbalance
- Undercurrent
- Instantaneous overcurrent
Thermal
- Motor thermistor
- Motor overload
- Bypass relay overload
- Heatsink temperature
Communication
- Network comms
- Starter comms
External
- Input trip
Starter
- Individual shorted SCR
- Battery/Clock
2 Introduction
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