AC MOTOR SOFT START (Power Com)



Overview

A Motor Soft Start is a product which is made to completely control all kinds of mechanical and electrical problems occurring when an AC motor starts up.
When a motor starts initially, more than 600% of inrush current is generated, the belt slip and the gear box can be damaged and the piping can be damaged by water hammer or when the conveyor stops to be operated, it can be oscillated seriously and the insulation of a motor can be damaged. Due to such problems mentioned above, the production line can stop resulting into the deterioration of the productivity and needs some maintenance.
A motor soft start made by Power Com is the best product that can control the motor smoothly by controlling the starting torque and the inrush current of a motor and can solve the electrical and mechanical problems when a motor starts or stops.

  • A strong design for a motor to be operated at 600% of the rated load for 50 seconds
  • A mechanical shock is solved
  • Operation releasing the inrush current
  • Removing the water hammer phenomenon
  • Protection of the motor and mechanical equipment

Case of Installation

Power Com Soft Start (Comparison of Motor Starting Methods)

Direct-On-Line (DOL) Starting

Y-△ Starting

: It is a starting method which makes the motor and the mechanical equipment hard to be operated due to the instantaneous inrush current that is generated when a motor starts up.

Since some big current is generated 5 to 8 times as big as the rated current when a motor starts, some problems such as damages to the product and destruction of the motor insulation can occur.

Since some instantaneous transient current is generated when a motor is switched to the operation mode after it is started, the lifespan of MC (Magnetic Contactor) can be shortened and the product can be damaged.

 

Soft Starter Starting

: : It is a starting method which does not make a motor or a load hard to be operated by using the starting method as follows.

SOFT SATRAT (0.1sec ~ 99.9sec)
It makes the motor started smoothly by supplying with some voltage slowly from some low voltage appropriate for the motor starting torque to some low voltage at which the biggest torque occurs.

KICK START (0.1sec ~ 3.0sec)
It is a function to be applied for starting a load which needs some starting torque bigger than the static torque like a mixer or a crusher needing a high viscosity.

SOFT STOP (0.1sec ~ 99.9sec)
It prevents any conveyed objects from falling or a conveyor from shaking by stopping a motor smoothly. Since the check valve is closed slowly when stopping the pump is controlled, the water hammer problem is solved.

SLOW SATRAT (0.1sec ~ 99.9sec)
It is applied to operate a big column shaped load spending a long time for generating the biggest RPM like a dehydrator or a blower.

CURRENT LIMIT
It is applied for starting the motor while limiting the starting current.


SLOW STOP (0.1sec ~ 99.9sec)
It is applied to a situation where it is necessary to stop a motor at a regular speed due to the traits of the motor.



Power Com Motor Soft Start (BY-PASS M/G Outer Mounted)

One-way direction(BD-SS30BP-S)

Capacity of Applied Motor 3.7kW 5.5kW 7.5kW 11kW 15kW 22kW 30kW 37kW 55kW 75kW 95kW
Type Name&
Power
Supply
Voltage		 220V BD-237S BD-255S BD-275S BD-2011S BD-2015S BD-2022S BD-2030S BD-2037S BD-2055S BD-2075S BD-2095S
380V BD-337S BD-355S BD-375S BD-3011S BD-3015S BD-3022S BD-3030S BD-3037S BD-3055S BD-3075S BD-3095S
480V BD-
437S		 BD-
455S		 BD-
475S		 BD-
4011S		 BD-
4015S		 BD-
4022S		 BD-
4030S		 BD-
4037S		 BD-
4055S		 BD-
4075S		 BD-
4095S
Rated
Current		 220V AC [A] 15 22 30 45 60 88 120 150 220 300 380
380/440V 7.5 11 15 22 30 45 60 75 110 150 190
Starting
Current		 220/380V AC [A] 60
/30		 88
/44		 120
/60		 180
/88		 240
/120		 352
/180		 480
/240		 600
/300		 900
/445		 1200
/600		 1560
Frequency [Hz] 50/60
Size 220V W [mm] 130 140 155 200 300
H [mm] 230 (Product1) 290 (Product2) 285 (Product3) 300 (Product4)
D [mm] 135 140 155 300
Size 380/440V W [mm] 130 155 200
H [mm] 230 (Product1) 290 (Product2) 285 (Product3)
D [mm] 135 140 155
Place for Using Indoor Place where there is no corrosive gas or dust.
Surrounding Temperature -10 ~ +80℃
Surrounding Moisture Not bigger than 90% RH (Dews are not formed.)
Power Noise Inputting the square waves (±2000 1㎲ between terminals) caused by the noise simulator.
Cooling Method Natural Cooling by the Heat Sirk and Forced Cooling using a fan.
Overheating Sensor The Negative Temperature Coefficient Thermistor is operated. Operating Temperature: 35℃ ±5℃
Insulation Resistance 1,000V, more than 5MΩ

Capacity of Applied Motor 112kW 150kW 180kW 200kW 220kW 250kW 300kW 375kW 450kW 600kW
Type Name&
Power
Supply
Voltage		 220V BD-
2112S		 BD-
2150S		 BD-
2180S		 BD-
2200S		 BD-
2220S		 - - - - -
380V BD-
3112S		 BD-
3150S		 BD-
3180S		 BD-
3200S		 BD-
3220S		 BD-
3250S		 BD-
3300S		 BD-
3375S		 BD-
3450S		 BD-
3600S
480V BD-
4112S		 BD-
4150S		 BD-
4180S		 BD-
4200S		 BD-
4220S		 BD-
4250S		 BD-
4300S		 BD-
4375S		 BD-
4450S		 BD-
4600S
Rated
Current		 220V AC [A] 450 600 700 820 880 - - - - -
380/440V 225 300 350 410 440 500 600 750 900 1200
Starting
Current		 220/380V AC [A] 1800
/900		 2400
/1200		 2800
/1400		 3200
/1640		 3520
/1760		 2000 2400 3000 3600 4800
Frequency [Hz] 50/60
Size 220V W [mm] 300 Original Equipment Manufacturing (OEM)
H [mm] 350 (Product5)
D [mm] 300
Size 380/440V W [mm] 300 300 420
H [mm] 300 (Product4) 350 (Product5) 600 (Product6)
D [mm] 300 300 460
Place for Using Indoor Place where there is no corrosive gas or dust.
Surrounding Temperature -10 ~ +80℃
Surrounding Moisture Not bigger than 90% RH (Dews are not formed.)
Power Noise Inputting the square waves (±2000 1㎲ between terminals) caused by the noise simulator.
Cooling Method Natural Cooling by the Heat Sirk and Forced Cooling using a fan.
Overheating Sensor The Negative Temperature Coefficient Thermistor is operated. Operating Temperature: 35℃ ±5℃
Insulation Resistance 1,000V, more than 5MΩ

※ Since the dimension of this product can be changed without any notice for enhancing the product quality, please consult with us when place an order.

Power Com Motor Soft Start (BY-PASS M/G : Built-in Type)

One-way Direction(BD-SS30BP-M)

Capacity of Applied Motor 3.7kW 5.5kW 7.5kW 11kW 15kW 22kW 30kW 37kW
Type Name &
Power
Supply
Voltage		 220V BD-237 SM BD-255 SM BD-275 SM BD-2011 SM BD-2015 SM BD-2022 SM BD-2030 SM BD-2037 SM
380V BD-337 SM BD-355 SM BD-375 SM BD-3011 SM BD-3015 SM BD-3022 SM BD-3030 SM BD-3037 SM
480V BD-437 SM BD-455 SM BD-475 SM BD-4011 SM BD-4015 SM BD-4022 SM BD-4030 SM BD-4037 SM
Rated
Current		 220V AC [A] 15 22 30 45 60 88 120 150
380/440V 7.5 11 15 22 30 45 60 75
Starting
Current		 220/380V AC [A] 60/30 88/44 120/60 180/88 240/120 352/180 480/240 600/300
Frequencies [Hz] 50/60
Size 220V W [mm] 130 350
H [mm] 250 (Product1) 260 (Product2) 400 (Product3)
D [mm] 150 200 260
Size 380/440V W [mm] 130 350
H [mm] 250 (Product1) 260 (Product2)
D [mm] 150 200
Place for Using Indoor Place where there is no corrosive gas or dust.
Surrounding Temperature -10 ~ +80℃
Surrounding Moisture Not bigger than 90% RH (Dews are not formed.)
Power Noise Inputting the square waves (±2000 1㎲ between terminals) caused by the noise simulator.
Cooling Method Natural Cooling by the Heat Sirk and Forced Cooling using a fan.
Overheating Sensor The Negative Temperature Coefficient Thermistor is operated. Operating Temperature: 35℃ ±5℃
Insulation Resistance 1,000V, more than 5MΩ

Capacity of Applied Motor 55kW 75kW 95kW 112kW 150kW 195kW 240kW 300kW
Type Name &
Power
Supply
Voltage		 220V BD-2055 SM BD-2075 SM BD-2095 SM BD-2112 SM - - - -
380V BD-3055 SM BD-3075 SM BD-3095 SM BD-3112 SM BD-3150 SM BD-3195 SM BD-3240 SM BD-3300 SM
480V BD-4055 SM BD-4075 SM BD-4095 SM BD-4112 SM BD-4150 SM BD-4195 SM BD-4240 SM BD-4300 SM
Rated
Current		 220V AC [A] 225 300 390 450 600 - - -
380/440V 112 150 - 225 300 390 480 600
Starting
Current		 220/380V AC [A] 900/445 1200/600 1560 1800/900 1200 1560 1920 2400
Frequencies [Hz] 50/60
Size 220V W [mm] 350 300 Original Equipment Manufacturing (OEM)
H [mm] 260
(Product2)		 350 (Product4)
D [mm] 200 300
Size 880/440V W [mm] 350 300 Original Equipment Manufacturing (OEM)
H [mm] 400 (Product3) 350 (Product4)
D [mm] 260 300
Place for Using Indoor Place where there is no corrosive gas or dust.
Surrounding Temperature -10 ~ +80℃
Surrounding Moisture Not bigger than 90% RH (Dews are not formed.)
Power Noise Inputting the square waves (±2000 1㎲ between terminals) caused by the noise simulator.
Cooling Method Natural Cooling by the Heat Sirk and Forced Cooling using a fan.
Overheating Sensor The Negative Temperature Coefficient Thermistor is operated. Operating Temperature: 35℃ ±5℃
Insulation Resistance 1,000V, 5㏁ 이상

※ Since the dimension of this product can be changed without any notice for enhancing the product quality, please consult with us when place an order.

Power Com Motor Soft Start (Outdoor Display Unit)

BD-SS-P


NO Name of Detailed Motion
1 Button for changing a date value
2 Button for moving a date value
3 Button for setting a date value
4 Button for returning in case that the inside of the product is malfunctioned
5 Button for testing the product manually
6 Button for setting 3 methods for showing a motion (showing 12, 13 and 14)
7 Lamp switched off while being operated normally when the start-up is completed
8 Switching on when the operation and stoppage are operated at a % rate (6 times of operation)
9 Switching on when operating or stopping due to changes of the current value (6 times of operation)
10 Switching on when operating or stopping every hour (6 times of operation)
11 Switching on while being malfunctioned and showing an error code on the display window
12 Lamp showing the current value of the R-Phase while being operated
13 Lamp showing the current value of the S-Phase while being operated
14 Lamp showing the current value of the T-Phase while being operated

Layout Drawing of Product Control Part Terminals

Power Com Motor Soft Start Basic Wiring Drawing for Power Com Motor Soft Start

Electrical Wiring
※Caution : The capacitor for enhancing the power factor and compensating the starting must be mounted on the front of the Soft Start.

Control Wiring