dc converter Archives

Soft start and soft stop overview

The soft start and soft stop devices of SoftCompact^® and LEKTROMIK^® families in an overview

SoftCompact^® AM, SM

Start attentuation (AM) and soft starters (SM, SM2)
0,5 – 7,5 kW

Features

Application

AM Start attenuation with bridging relay
SM Soft start with bridging relay for single-phase capacitor motors
SM2 Soft start with bridging relay and soft stop
Switch-on torque and run-up voltage ramp separately adjustable
Module housing for mounting on 35 mm DIN rails. Very compact version with a width of 45 mm.
Terminals and potentiometers are well protected against accidental contact
Easily retrofitted
Can be used as a combined soft-start and injection brake using the electronic brake modules LEKTROMIK B1

Conveyor belts
Packing equipment
Long-travel drives for cranes
Compressors
Heat pumps
Vibration transporters
Machines with gearbox, belt or chain drives
Special version for pole-change motors

LEKTROMIK^® S2, SD2

Soft start and soft stop LEKTROMIK^®S2, SD2
4 – 2000 kW

Features

Applications

3-phase control
Wide voltage range 3AC 110 – 500 V or 3AC 220 – 690 V
Ramp-up time, ramp-down time and starting torque adjustable
Ramp-up times up to 100 s possible
Can be combined with electronic DC injection brakes
Current limit and upgrading with special functions
Control of external bridging contactor
Can be used as voltage controller
S2: Option I2 integrated
SD2: “Delta” connection (6 motor cables)

Pumps
Fans and compressors
Refrigeration compressors
Conveyor belts
Grinding machines
Saws
High speed and high load belts
Drives with pole-change motors
Machines with gearbox, belt or chain drives
Centrifuges

Braking units overview

The devices of LEKTROMIK^®B1 and B4 families in an overview

LEKTROMIK^® B1

Braking units 2,2 – 7,5 kW

Features	Applications
AC 230 V, AC 400 V, AC 480 V Braking torque and braking time-out separately adjustable Mounting on 35 mm DIN rails Side-by-side mounting Easily retrofitted Can be used without braking contactors Suitable as a combined soft start and brake using the soft start SoftCompact	Woodworking machines Grinding machines Conveyor belts with long running down times Vibration sources Centrifuges Test rigs

Special versions, e.g. 480 V, please inquire

LEKTROMIK^® B4

Braking units 15 – 200 kW

Features	Applications
AC 220 – 500 V Braking torque and braking time-out Separately adjustable Detection of zero-speed Operation without braking contactor possible Suitable as a combined soft start and brake using the electronic soft start LEKTROMIK® S2 / SD2 Limiting of maximum braking current	Woodworking machines Vibration motors Roller-table drives in steel plants Machines with high inertia, e.g. mills, compactors, centrifuges

Up to 90 kW UL-certified for the USA and Canada.

LEKTROMIK^® DS1

Digital soft starter / Braking unit

Features

Applications

Microprocessor controlled
- One-button operation
- 2-line display
Optional interfaces (e.g. Ethernet, Profinet)
3 operating modes:
- Soft start – soft stop
- Soft start – braking
- Soft start – soft stop in delta connection
Ramp-up and ramp-down times separately adjustable
Suitable for IE1, IE2 and IE3 motors
Three-phase controlled soft start / soft stop
Start with current limitation
Integrated bypass relay to minimize losses
Phase failure and rotating field monitoring
Integrated DC brake: fully controlled, 2-phase
Integrated stillstand detection
Integrated evaluation of the motor winding temperature
Predefined parameter sets for different applications
2 memories for user parameter sets

Woodworking machines (saws, planing benches, grinding machines)

Machines with gear, belt and chain drives

Conveyors, fans, compressors and pumps

Braking of machines with long stopping times

LEKTROMIK^® E

Soft start, soft stop and braking of squirrel cage motors
2,2 – 90 kW

Features

Applications

Electronic DC injection brake with a short delay time can be integrated in controller
Compact unit easily retrofitted
Shutdown on detection of phase failure during ramp up
Controller inhibited when phase sequence is incorrect(E2, E4)
Version for operation with two phase sequences forreversing drives available (E22, E42)
Auxiliary module (OPTION I1) allows:
- Soft start with current limit
- Switch-on torque pulse
- Monitoring of power with overload trip
- Improvement of power factor at low load

Machines with gearbox, belt or chain drives
Drives using pole-change motors
Conveyor belts (also high speed and high load transportation systems)
Machines with high moments of inertia e.g. mills, compactors, centrifuges
Grinding machines and circular saws
Packing equipment
Fans and compressors
Pumps, in particular to reduce hydraulic shock waves

Voltage controllers overview

The voltage controllers of LEKTROMIK^® K3 line and the KIMODUL^® DLS in an overview

LEKTROMIK^® K3

Single-phase voltage controllers 1,5 – 18 A

Features	Applications
AC 230 V Single-phase control Mounting on 35 mm DIN rail Compact unit Minimum and maximum voltage separately adjustable	Electrical heating equipment Fan control Applications with single-phase capacitor motors Lighting control

KIMODUL^® DLS

Three-phase voltage controllers 6 A

Features	Applications
3AC 400 V 3-phase control Mounting on 35 mm DIN rail Minimum and maximum voltage separately adjustable EMC filter for use in residential areas available	Electrical heating equipment Fan control Lighting control Torque controller for torque motors e.g. with winding drives Motors with external rotor

Braking choppers overview

The braking choppers of TRANSOMIK^® series B1, B2, BC1 and BC2 in an overview

TRANSOMIK^® B1/B3

Braking choppers with integrated braking resistors
2 – 55 kW

Features	Applications
Operation with frequency inverters for supply voltages up to 1/N AC 230 V, 3AC 400 V Brake voltage threshold 385 V, 670 V Integrated braking resistors	Drives with large inertia Drives with requirement for rapid braking Drives for transport, long travel and hoisting applications Retrofit to existing inverters without braking chopper

TRANSOMIK^® BC1

Braking choppers for external braking resistors
11 – 22 kW

Features	Applications
Operation with frequency inverters for supply voltages up to 3AC 460 V Brake voltage threshold 670 / 770 V	Drives with large inertia Drives with requirement for rapid braking Drives for transport, long travel and hoisting applications Retrofit to existing inverters without braking chopper

TRANSOMIK^® BC2

Braking choppers for external braking resistors
22 – 1200 kW

Merkmale	Anwendungen
Operation with frequency inverters for supply voltages up to 3AC 460 V, 575 V, 690 V Brake voltage threshold 670/770 V, 840/960 V, 1065/1155 V Increased power with optional fan Can be paralleled for higher powers	Drives with large inertia Drives with requirement for rapid braking Drives for transport, long travel and hoisting applications Retrofit to existing inverters without braking chopper

Frequency inverters overview

The frequency inverters of TRANSOMIK^® U1 and U2 series in an overview

TRANSOMIK^® U1

Frequency inverters
AC 110 – 480 V / 1,5 – 30 kW

Merkmale

Anwendungen

Self optimizing PWM without a fixed switching frequency with the following advantages:
- Low motor noise
- High starting torque
- Optimum smooth rotation at very low speeds
DC braking possible without a braking chopper
Control voltage derived from DC link:
- Operation at 80 V and above
- Controlled braking possible during supply disturbance
- Supply from DC source possible
Easy to service, all control connections pluggable
No parameter setting necessary
Space for customized options:
- Technology board

Speed variation for all types of three-phase induction motors
Low-noise flow control of pumps and fans
Refrigeration compressors
Transport technology
Positioning drives with cyclic acceleration and braking

TRANSOMIK^® U2

Regenerative frequency inverter
3AC 200 – 480 V / 4 – 200 kW

Features

Applications

Self optimizing PWM without a fixed switching frequency with the following advantages:
- Low motor noise
- High starting torque
- Optimum smooth rotation at very low speeds
Regenerative / no braking chopper required
Control voltage derived from DC link:
- Operation at 80 V and above
- Supply from DC source possible
Easy to service, all control connections pluggable
No parameter setting necessary
Space for customized options:
- Technology board

Speed variation for all types of three-phase induction motors
Low-noise flow control of pumps and fans
Dynamic drives
Positioning drives with cyclic acceleration and braking

GISIDIG

Fully digital converters for DC drives

Features

Applications

High processing speed and short reaction times by means of advanced processor technology
Fast process communication via peer to peer RS232, RS485
User-configurable technology board for the solution of complex applications
Short commissioning times due to computer-aided parameter setting and monitoring (GISIVIS)
Monitoring functions such as for example on-off switching sequence and fault messages are included in the standard software
Compact metal housing with swivelling device, which enables easy access to all boards as well as the thyristor power section
Automatic setting

Main drive for arc and rotary printing presses
Traversing- and hoisting drives for cranes and hoisting devices, elevators etc.
Lifts and cable railways
Needling machines for the textile industry
Rolling mill drives
Shear drives in the steel industry
Paper machines
Horizontal cutters
Loading machines for motor, turbine- or gearbox test rigs
Winding drives for foil, paper wire etc.

GISIPAKT

Analog DC converters for DC drives

Tag: dc converter

All products in an overview

Soft start and soft stop overview

SoftCompact^® AM, SM

LEKTROMIK^® S2, SD2

Braking units overview

LEKTROMIK^® B1

LEKTROMIK^® B4

LEKTROMIK^® DS1

LEKTROMIK^® E

Voltage controllers overview

LEKTROMIK^® K3

KIMODUL^® DLS

Braking choppers overview

TRANSOMIK^® B1/B3

TRANSOMIK^® BC1

TRANSOMIK^® BC2

Frequency inverters overview

TRANSOMIK^® U1

TRANSOMIK^® U2

GISIDIG

GISIPAKT