Table of Contents
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Contents
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MG.17.C3.02 - VLT is a registered Danfoss trademark
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Description ....................................................................................................... 3
Ratings ............................................................................................................. 4
General Technical Data ...................................................................................... 5
Mechanical Installation ...................................................................................... 7
Dimensions and Weights .................................................................................... 7
Cable Size ......................................................................................................... 9
Semiconductor Fuses ........................................................................................ 9
Frequently Asked Questions ............................................................................ 10
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Electrical Schematic ........................................................................................ 12
Control Circuits ............................................................................................... 13
Functionality .................................................................................................... 13
Indication ........................................................................................................ 14
Fault Finding .................................................................................................... 14
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Electrical Schematic ........................................................................................ 15
Control Circuits ............................................................................................... 15
Functionality .................................................................................................... 16
Motor Thermistor Protection ........................................................................... 18
Indication ........................................................................................................ 18
Fault Finding .................................................................................................... 18
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Overview ......................................................................................................... 19
MCD 200 Remote Operator ............................................................................. 19
MCD 200 Modbus Module ............................................................................... 19
MCD 200 Profibus Module................................................................................ 19
MCD 200 DeviceNet Module............................................................................. 19
MCD 200 AS-i Module ..................................................................................... 19
MCD PC Software ........................................................................................... 20
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Reduced Voltage Starting ............................................................................... 21
Types of Soft Start Control .............................................................................. 22
Understanding Soft Starter Ratings ................................................................. 22
Model Selection .............................................................................................. 23
Typical Applications ........................................................................................ 24
Power Factor Correction ................................................................................. 24
MCD 200 Design Guide
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Table of Contents
Related Manuals for Danfoss MCD 201
Summary of Contents for Danfoss MCD 201
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Page 1: Table Of Contents
Soft Start Application Guide Reduced Voltage Starting ................21 Types of Soft Start Control ................22 Understanding Soft Starter Ratings ..............22 Model Selection ....................23 Typical Applications ..................24 Power Factor Correction ................. 24 MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 2: Warnings
When reading this manual you will come across different symbols that require special attention. The symbols used are the following: NB!: Indicates something to be noted by the reader Indicates a general warning Indicates a high voltage warning MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 3: Mcd 200 Series Overview Description
• MCD 201 • MCD 202 MCD 201 and MCD 202 soft starters share a common power and mechanical design, but offer different levels of functionality. MCD 201 soft starters provide TVR (Timed Voltage Ramp) starting and stopping control and are designed for use with an external motor protection device. -
Page 4: Ratings
Load category for soft starters with SCRs bypassed during run. 4-6: 400% start current for 6 seconds. 354: 354 seconds between the end of one start to the beginning of the next start (i.e. 10 starts per hour). MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 5: General Technical Data
Voltage dip and short time interruption ..............100 ms (at 40% nominal voltage) Short Circuit Rated short-circuit current MCD 200-007 to MCD 200-037 ................5 kA Rated short-circuit current MCD 200-045 to MCD 200-110 ................10 kA MG.17.C3.02 – VLT is a registered Danfoss trademark... - Page 6 During Start ..........................3 watts / ampere During Run ..............................< 4 watts Standards Approvals ..............................IEC 60947-4-2 UL / C-UL ..............................UL 508 CE ..............................IEC 60947-4-2 CCC ..............................GB 14048.6 MG.17.C3.02 – VLT is a registered Danfoss trademark...
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Page 7: Mechanical Installation
MCD 200-037 ~ MCD 200-110 Not available ■ Dimensions and Weights mm (inch) MCD 201-007 ~ MCD 201-030 (2.2 kg / 4.8 lb) MCD 202-007 ~ MCD 202-030 (2.4 kg / 5.3 lb) 98 (3.86) 165 (6.50) 82 (3.23) (0.9) (0.9) - Page 8 MCD 200 Design Guide MCD 201-037 ~ MCD 201-055 (4.0 kg / 8.8 lb) MCD 202-037 ~ MCD 202-055 (4.3 kg / 9.5 lb) 145 (5.71) 193 (7.60) 124 (4.88) (1.46) (1.46) MCD 201-075 ~ MCD 201-110 (6.1 kg / 13.5 lb) MCD 202-075 ~ MCD 202-110 (6.8 kg / 15.0 lb)
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Page 9: Cable Size
6.6URD31xxxA0450 500 FMM MCD 200-075 168000 170M-1322 (A070URD31xxx0450) 6.6URD31xxxA0450 500 FMM MCD 200-090 245000 170M-3022 (A070URD31xxx0450) 6.6URD31xxxA0450 500 FMM MCD 200-110 320000 170M-3022 (A070URD31xxx0450) xxx = Blade Type. Refer Ferraz for options. MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 10: Frequently Asked Questions
What is the minimum allowable motor current The operational ratings for MCD 200 are size- when using an MCD 201 open loop soft starter? dependent, and are due to the capability of the There is no minimum current when using an internal bypass relays: MCD 201 open loop soft starter. - Page 11 201 open loop soft starter is set to “full voltage”? the end of one stop and the beginning of the No, the MCD 201 will still provide a limited soft next start. This delay allows the motor flux to start. The voltage is ramped up from 0 to 100% decay, eliminating any chance of the MCD 202 in approximately 0.25 seconds.
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Page 12: Mcd 201
MCD 200 Design Guide MCD 201 ■ Example 2 – MCD 201 installed with motor protection circuit breaker and line contactor. ■ MCD 201 Range MCD 201 soft starters provide TVR (Timed Voltage Ramp) starting and stopping control and are designed for use with an external motor protection device. -
Page 13: Control Circuits
Sets the time of the soft stop voltage ramp. The soft stop function extends motor deceleration time by Ramp Down ramping down voltage supplied to the motor when a Full stop is initiated. Voltage Start Soft Stop (seconds) (seconds) 177HA248.11 MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 14: Indication
Check supply frequency is in range Network Comms Failure (between accessory module and network): Check network connections and settings. Starter Comms Failure (between starter and accessory module): Remove and refit accessory module. MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 15: Mcd 202
6 A @ 30 VDC resistive / 2 A 400 VAC AC11 Main Contactor START/ STOP 177HA209.12 * Also resets the MCD 202 177HA241.10 Auxiliary Relay Function = Trip (see parameter 8) MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 16: Functionality
For applications where start conditions vary 95 A between starts the Current Ramp mode provides 100 A an optimum soft start irrespective of motor loading e.g. a conveyor that may start loaded or 177HA233.12 unloaded. MG.17.C3.02 – VLT is a registered Danfoss trademark... - Page 17 Phase Rotation Protection Value: Function: ✭ ANY, FWD Calibrates the MCD 202 motor thermal model according to the desired motor trip class. ANY = Forward & Reverse rotation permitted FWD = Forward Rotation Only MG.17.C3.02 – VLT is a registered Danfoss trademark...
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Page 18: Motor Thermistor Protection
Check network connections and settings. Main Contactor Starter Comms Failure (between starter and accessory module): Remove and refit accessory module. ■ Motor Thermistor Protection Motor thermistor cut out value = 2.8 kΩ. ■ Indication MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 19: Accessories Overview
Overview The following optional accessory items are available The Danfoss Remote Operator can be used with for use with MCD 200 soft starters: MCD 201, MCD 202 and MCD 3000 to provide the • MCD 200 Remote Operator following functionality: (Order Code 175G9004) •... -
Page 20: Mcd Pc Software
MCD 200 Design Guide ■ MCD PC Software The Danfoss MCD PC Software can be used with MCD 201, MCD 202 and MCD 3000 to provide the following functionality for networks of up to 99 soft starters. Feature 3000 Operational Control... -
Page 21: Soft Start Application Guide
A long required by the load. Below this point motor cool down period is required between starts. acceleration will cease and the motor/load will not reach full speed. MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 22: Types Of Soft Start Control
They must be used with a line contactor and motor overload. They are suitable for very small motors and should only be applied to light applications with low to medium start frequency. MG.17.C3.02 – VLT is a registered Danfoss trademark... -
Page 23: Model Selection
See the tables in Ratings and select an MCD of motors and machines do vary. Please contact 200 model with an FLC rating greater than Danfoss if the application requires duties other than that of the motor. listed in this manual. -
Page 24: Typical Applications
Reduced mechanical shock extends the life of the compressor, couplings and motor. • Limited start current enables large compressors to be started when maximum power capacity is limited. • Phase rotation protection prevents MG.17.C3.02 – VLT is a registered Danfoss trademark...