AC Drive ST7800 37KW 400V Demo Device

Highlights

• Power: 37 kW
• Current: 75 A
• Weight: 22Kg
• Dimensions (W/H/D): 560/300/243 mm
• Input voltage range:
  
  • 3 x 380-415VAC, +-10%, 50/60Hz +-5%
  • Other voltages on request
• Output frequency 0.1 Hz to 400 Hz
• 100% torque close to 0 Hz „Open-Loop-Boost-Mode“
• Automatic slip compensation
• Extended PID functions
• 12 digital in- and outputs
• 6 analog in- and outputs
• 2 Multifunctional outputs
• Set point with 0-10V, -10V-10V or 4-20mA
• Automatic recognition of motor parameters
• Safety appliances (overcurrent, overvoltage, earth connection etc.)
• Sensorless control (U/f-characteristic)
• Excellent frequency stability

Technical data

• Start/Stop-ramps
• Active current limiter
• Fast stop function
• Zero-Voltage-Switching
• Overload ability: 150 % for 60 s
• Stepless setting of PWM frequency 1 kHz to 16 kHz
• Encoder input for feedback (Optional)
• Linear U/f-characteristics
• Sensorless vector control (open loop/closed loop)
• Build-in DC brake
• 7 fixed speeds can be freely set and chosen by inputs signals
• 4 parameter sets switchable online
• 11 ways to control speed 
• Reduced motor noises caused by PWM-function
• Slave-Vector-Control
• Automatic recognition of motor parameters
• Automatic restart after powerfail
• Elegant avoidance of vibrations by 2 blocking frequencies
• Ideal acceleration and brake behavior
• Cooling according to powerrating (Fan temperature controlled)
• If necessary power rating can be exceeded for a short time
• Factor 1.5 starting torque for 60 s, every 600 s
• Programmable brake control (Duration, power, frequency)
• Slots for extensions (Pumpcontrol,  I/O Extension)
• Temperature display for IGBT power-modul
• Integrated clock
• Error memory
• RoHS-conformity
• CE-conformity
• Environment protection class: IP20 (EN 60529)

Integrated protection concept

• 100 % short-circuit protection
• 100 % groundfault protection
• Over- and under-voltage
• Over- and under-current
• Overheating protection
• Over voltage stall
• External stop-signal
• Communication fault
• PID feedback abnormity

Interfaces

• Digital and analog I/O - flexible configuration
• 8 digital inputs
• 4 digital outputs programmable
• 4 analog inputs
• 2 analog outputs
• 2 Multifunctional outputs (230 VAC/30 VDC, 5 A)

Options and accessories

• ST7K-RS485 RS485-Interface
• JP5D7800 control mounting frame
• 7KPGS.V2 Encoder Board
• Speed indicator and encoder feedback
• Frequency feedback for Closed Loop
• Brake resistors
• EMI filter including transient protection
• Power chokes
• Motorfilter
• ST®Drive Software
• ST®DLV 1.0 LabView-Driver
• ST®APP 1.1 Android