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Danfoss MCD 100-007 4 kW [7/7] Line controlled soft start
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NOTE
When the temperature has dropped approximately 30°C
the controller will automatically be switched On again. This
is not acceptable in some applications.
Example 2
The thermostat is connected in series with the control
circuit of the main contactor. When the temperature of the
heat sink exceeds 90°C the main contactor will be
switched OFF. This circuit requires manual reset to restart
the motor.
1.4.2 Line Controlled Soft Start
When the contractor C1 is switched to the ON-State, the
soft starter will start the motor, according to the settings
of the Ramp-up time and Initial torque adjustments.
When the contactor C1 is switched to the OFF-State, the
motor will be switched off instantaneously.
In this application the contactor will have no load during
making operation. The contactor will carry and break the
nominal motor current.
1.4.3 Input Controlled Soft Start
When the control voltage is applied to A1 - A2, the MCD
soft starter will start the motor, according to the settings
of the Ramp-up time and Initial torque adjustments.
When the control voltage is switched OFF, the motor will
be soft stopped according to the settings of the Ramp-
down time adjustments.
To switch off instantaneously set the Ramp-down time to
0.
All about MCD 100 MCD 100 Design Guide
MG12A202 - VLT
®
is a registered trademark 7
1
1
Содержание
- Application examples 1
- Contents 1
- Technical data 1
- Acceleration times adjustable 0 10 seconds 2
- Adjustments 2
- All about mcd 100 mcd 100 design guide 2
- Automatic adaptation to 50 60 hz 2
- Automatic detection of missing phases 2
- Breakaway function kick start 2
- Built in varistor protection 2
- Ce en 60947 4 2 2
- Compact modular design 2
- Deceleration times adjustable 0 10 seconds 2
- Din rail mountable 2
- Features 2
- Initial torque adjustable up to 85 2
- Introduction 2
- Led status indication 2
- Motor load max 25 a 2
- Selection guide 2
- Thanks to the adjustable initial torque and the unique breakaway kick start function the soft starter can be optimized for almost any application the mcd 100 soft starters are typically used on motor applications where a smooth stat and or stop is advantageous such as conveyors fans pumps compressors and high inertia loads mcd 100 soft starters are also obvious as replacement for star delta starters 2
- The digitally controlled soft starter features accurate settings and easy installation the controller has individually adjustable acceleration and deceleration times 2
- The mcd 100 soft starters are designed for soft starting and stopping of 3 phase a c motors thus reducing the inrush current and eliminating the damaging effects of high starting torque surges 2
- Ul 508 2
- Universal control voltage 24 480 v ac dc 2
- Unlimited start stop operations per hour 2
- All about mcd 100 mcd 100 design guide 3
- Technical data 3
- All about mcd 100 mcd 100 design guide 4
- Application requiring a higher starting torque in some cases the application will need a high break away torque here the initial starting torque level can be combined with a kick start function the kick start is a period of 200 ms where the motor receives full voltage 4
- Functional description 4
- Functional diagram 4
- Illustration 1 mcd 100 007 mcd 100 011 4
- Initial torque the initial torque is used to set the initial starting voltage this way it is possible to adapt the controller to an 4
- Is a registered trademark 4
- Led status indication 4
- Mg12a202 vl 4
- Ramp up during ramp up the controller will gradually increase the voltage to the motor until it reaches full line voltage the motor speed will depend on the actual load on the motor shaft a motor with little or no load will reach full speed before the voltage has reached its maximum value the actual ramp time is digitally calculated and will not be influenced by other settings net frequency or load variations 4
- Soft stop during ramp down the controller will gradually reduce the voltage to the motor thus reducing the torque and current as a consequence the motor speed will fade off the soft stop feature is advantageous to avoid liquid hammering and cavitation on pumps and to avoid goods tilting on conveyors 4
- Wiring 4
- Adjustments 5
- Dimensions 5
- Fuses and short circuit protection 5
- All about mcd 100 mcd 100 design guide 6
- Application examples 6
- Clearance between controller and top and bottom walls must be minimum 30 mm 1 6
- Clearance between two vertical mounted controllers must be minimum 80 mm 3 5 6
- Depending on the application the thermostat can be connected in series with the control circuit of the main contactor when the temperature of the heat sink exceeds 90 c the main contactor will be switched off a manual reset is necessary to restart this circuit for wiring connections see 1 application examples 6
- Example 1 the thermostat can be connected in series with the control input of the soft starter when the temperature of the heat sink exceedes 90 c the soft starter will be switched off 6
- If required the controller can be protected against overheating by inserting a thermostat in the slot on the right hand side of the controller 6
- Mounting instructions 6
- Operating at high temperatures 6
- Order up 62 thermostat 037n0050 6
- Over heat protection 6
- Overheat protection 6
- The controller is designed for vertical mounting if the controller is mounted horizontally the load current must be reduced by 50 6
- The controller needs no side clearance 6
- Input controlled soft start 7
- Line controlled soft start 7
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