Soft start SI-start
Main features
- Wide range of types in the ranges 31-1100 A, 208-690 V
- Compact housing
- Control in two or three phases
- First-class starting and braking characteristics
- Optimized for high efficiency motors (IE3)
- Full suite of motor protections
- Frequency autotuning mode
- User-friendly
- Connections: direct or in delta mode
- User-defined measurement and monitoring of current voltage and power factor
Characteristics
Current: 17A - 1100A
Voltage: 208V - 690V
Starting and braking
- Soft starting and soft braking
- Current limitation
- Pump control program
- Torque and current value control programs
- Double set of parameters
- Pulse start - boost initial current for heavy starts
- Slow forward/reverse travel
Motor and soft-start protection
- Protection against too many starts
- Protection against over-starting (motor stall)
- Electronic overcurrent protection
- Undercurrent protection
- Phase loss and bad phase sequence protection
- Under/over voltage and power loss protection
- Loss of load (motor disconnected)
- Short-circuit thyristor protection
- Soft-start over-temperature protection
- External error protection
- Earth fault protection
- Protection against wrong connection in delta mode
Options
- Communication: RS-485/RS-232/Modbus/Profibus/ Device Net/IP
- Heavy duty fan control
- Analog card: thermistor inputs, analog outputs
- Motor insulation tester
- External keypad
Applications
- Pumps
- Compressors
- Belt conveyors and monorail systems
- Mixers
- Fans and blowers
- Hydraulic systems
- Soft startups (diesel generators, etc.)