This manual introduces the characteristics and specifications of the MCV4 soft starter products, connection methods, operation instructions and other information.
This manual provides detailed instructions for installing, configuring, and operating the MVC4 soft starter, an SCR-based controller for medium voltage AC motors. It covers specifications, wiring, programming setpoints, metering functions, and maintenance procedures. The device includes programmable overload protection, phase imbalance detection, and communication via Modbus RTU. Sections detail user interface navigation, fault analysis, and troubleshooting steps for common issues.
| AC Supply Voltage | 1000 – 7200VAC +10 to – 15% (Model dependent) |
|---|---|
| Unit Running Overload Capacity | 125% - Continuous 500% - 60 seconds, 600% - 30 seconds |
| SCR Peak Inverse Voltage Ratings | 4500V - 19500V (Model dependent see Table 1) |
| Control Voltage | 120VAC (Customer supplied) |
| BIL Rating | 1000V – 30KV , 2300V - 7200V 60KV |
| Communication Protocol | Modbus RTU |
| Operator Interface | LCD Readout, Keypad, 12 LEDs |
1000 – 7200VAC with a tolerance of +10 to – 15% (model dependent).
Modbus RTU protocol via RS-485, RS-422, or RS232.
Two-stage electronic overload curves programmable for Class 5 through 30 for starting and running conditions.
Includes an alphanumeric LCD display, 8-function keypad, and 12 LEDs for status indicators.