GENERAL DESCRIPTION
4
| MVE User Manual (710-17074-00G)
3.
General Description
3.1
Overview
The MVE provides compact and robust soft start solutions for control of medium voltage motors. MVE soft starters provide a
complete range of motor and system protection features and have been designed for reliable performance in the most demanding
installation situations.
The main components of a MVE soft starter are:
•
Power assembly (3 x phase arms)
•
Multilingual controller with FO cables
•
Power interface board
•
3 x CTs – 1000:1
3.2
Feature List
Starting
•
Constant Current
•
Current Ramp
Stopping
•
Coast To Stop
•
Soft stop
Protection
•
Undervoltage / Overvoltage (27, 59)
•
Mains frequency (81)
•
Phase sequence (47)
•
Shorted SCR (3)
•
Motor Overload (thermal model) (49, 51)
•
Instantaneous Overcurrent (two stages) (50)
•
Time-overcurrent (51)
•
Ground Fault (50G)
•
Undercurrent (37)
•
Current Imbalance (46, 60)
•
Motor thermistor (26, 49)
•
Excess Start Time (48)
•
Power circuit (32)
•
Auxiliary trip (94, 95)
Extensive input and output options
•
Remote control inputs
(3 x fixed, 2 x programmable)
•
Relay outputs
(3 x fixed, 3 x programmable)
•
Analog output
(1 x programmable)
•
Serial port (with module)
Comprehensive feedback
•
Starter status LEDs
•
Date and time stamped event logging
•
Operational counters (number of starts, hours-run, kWh)
•
Performance monitoring (current, voltage, power factor, kWh)
•
User-programmable monitoring screen
•
Multi-level password protection
Accessories (optional)
•
Communication modules: Ethernet (Profinet, Modbus TCP,
Ethernet/IP), Profibus, DeviceNet, Modbus RTU, and USB