This document is the user manual for MVC Plus. It introduces the product's overview, specifications, design features, operating principle, general protection, thermal protection, firing circuit, and electronic components.
This document provides detailed instructions for operating and programming the MVC Plus soft starter, including setup, setpoint configuration, metering, and troubleshooting. It covers specifications such as voltage range (10–13.8kV), overload protection, and communication protocols. Maintenance sections include failure analysis and SCR testing procedures.
| AC Supply Voltage | 10000 – 13800 VAC +10 to – 15% (Model dependent) |
|---|---|
| Unit Running Overload Capacity | 125% - Continuous 500% - 60 seconds, 600% - 30 seconds |
| Frequency | 50 or 60Hz, +2Hz hardware selectable |
| SCR Peak Inverse Voltage Ratings | 27000V - 39000V (Model dependent see Table 1) |
| Ambient Condition Design | 0° to 40°C (32° to 104°F) (optional - 20° to 50° C with heaters) |
| Control Voltage | 120VAC (Customer supplied) |
| BIL Rating | 110kV |
| Communication Protocol | Modbus RTU |
| Operator Interface | LCD Readout Alpha numeric LCD display |
| Clock and Memory | Real Time Clock Lithium ion battery for clock memory only |
The AC supply voltage is 10,000 – 13,800 VAC, with a tolerance of +10 to –15% (model dependent).
The control circuitry is powered by 120VAC (customer supplied).
It uses Modbus RTU over RS-485, RS-422, or RS-232.