![KIMO Sanftanlauf und Bremsgerät](https://www.kimo.de/wp-content/uploads/ds1_e42_compressed.jpg)
Soft start, soft stop and braking units – an overview
Soft start, soft stop and braking devices as a compact combination
While pure soft starters or pure braking units are only used for the respective function, more can be achieved with combination devices.
In so-called soft starter/braking units or soft start and braking device combinations, soft starting and DC braking are combined in one device.
This allows very compact, universally applicable solutions.
![KIMO Fig. Drehzahlregelung am Beispiel der Lüftertechnik](https://www.kimo.de/wp-content/uploads/2019/09/s_11-01.jpg)
Applications
Soft start, soft stop and breaking units are used wherever motors – as mentioned above – need to be started and slowed down gently. Pumps, centrifuges and conveyor belts are obvious examples.
However, the following articles also show other areas of application:
![KIMO LEKTROMIK DS1](https://www.kimo.de/wp-content/uploads/15DS11_100.png)
Digital soft starter / Braking unit
LEKTROMIK® DS1
Features
- 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
Applications
- 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
Soft start, soft stop and braking of squirrel cage motors
2.2 – 90 kW
LEKTROMIK® E
Features
- 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
Applications
- 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