Frequency Inverter ST500 18.5KW 500V

Highlights

• Power: 18.5KW
• Rated input current: 35.7 A
• Rated output current: 34.0 A
• Voltage: 480V (±10%)
• Frequency: 50/60Hz, ± 5%
• Optimal pre-set of parameters
• Short installation time, easy intuitive start-up operation
• Mounting on carrier rail possible
• Flexible digital – and analogue I/Os
• Motor speed adjustable by potentiometer
• "Open-Loop-Boost-Mode"
• Auto slip compensation
• Extended PID functions
• Stop-function

Technical Data

• Start/Stop-ramp linear: 0.0-6500.0s
• PID feedback signal DC(0-10V), DC(0-20mA)
• Motor nominal frequency 50Hz and 60Hz
• Forward and reverse operation
• Controller release/terminals/Bus
• 16 fixed speeds can be freely set and chosen by input signals
• 10 ways to control speed
• Step less setting of PWM frequency 1kHz-15kHz
• Slots for extensions: special pump control, I/O extension, incremental encoder
• Output frequency:
  • Vector control: 0-400Hz
  • V/F control: 0-320Hz
• Control mode:
  • V/F control (linear, square)
  • Vector control W/O PG
  • Accuracy: 0.5%
• Speed control:
  • Control range 1:100
  • Accuracy 0.5%
• Torque:
  • Automatic boost for low frequencies down to 1Hz
  • Manual increasing 0.1% - 30%
  • Response time: <40ms
  • Starting torque: 150% from 0.5Hz
  • Speed limits adjustable
  • Closed-Loop-Technique
• Display:
  • Frequency, current, voltage, torque, PID, ...
  • Error message
  • Keyboard lock
• Automatic functions:
  • Indication of motor parameters
  • Tension regulation (AVR)
  • Zero-Voltage-Switching
  • Active current limitation
  • Restart after power fail
  • Slip compensation
• DC brake function (time, intensity, frequency) & JOG-control
• Reduced motor noises caused by precise PWM-function
• Elegant avoidance of vibrations by blocking frequencies
• Variable speed by continuous torque
• Error memory
• Temperature -10°C up to +40°C above sea level without power reduction
• Storage temperature -20°C up to +65°C
• Humidity 90% RF – without condensation
• Altitude up to 1.000m above sea level without power reduction
• Safety standards in accordance to IEC61800-5
• Electromagnetically tolerance in accordance to IEC61800-3
• Vibration test below 5.9m/s² = 0.6g
• Protection class: IP20 (EN 60529), NEMA 1
• RoHS-conform
• CE-conform

Integrated protection concept

• 100 % ground fault protection
• Over- and under-voltage
• Over- and under-current
• Overheating protection
• Over voltage stall
• Overheating protection
• Communication fault
• PID feedback abnormity
• Cooling according to power rating (fan temperature controlled)
• Password protection
• Auto-self testing after restart
• Power failure bypass

I/O interfaces

• Digital and analog I/O - flexible configuration
• 8 digital inputs 9-30VDC (PNP/NPN)
• 3 analog iputs (0-10V / 0-20mA)
• 2 digital output 0-24VDC / 0-40mA
• Pulse output 0-50kHz
• 2 analog input 0-10VDC, 0-20mA
• 2 relay output (250VAC/30VDC, 5A)
• RS485 interface