Mentor MP DC Drives Speed Controller Parameters

The order number /article of the electrical equipment includes information about the nominal value of the long-term output current of the power supply circuit of the electric motor armature, the nominal voltage of the supply network and the design.

Rules for the formation of a registered number Mentor MP series DC drive

• Electric drive Mentor MP 1200A 4 R
• Mentop MP - Mentor Platform Product Family;
• 1200A is the nominal value of the long-term output current of the armature circuit in Amperes;
• Nominal voltage of the supply network: 4 – 480V, 5 – 575V, 6 – 690V;
• The design of the electric drive: R – 4-quadrant (reversible), _ – 2-quadrant (non-reversible).

The value of the rated long-term current of the Mentor MP electric drive is indicated under normal operating conditions (ambient temperature 40 °C, altitude 1000 m above sea level), under more severe operating conditions it is recommended to reduce the load rating. Graphs of the decrease in the nominal values of the electrical parameters of the Mentor MP DC electric drive with an increase in temperature are shown at the bottom of this article.

Mentor MP electronic speed controllers can be connected to the supply network with a voltage of up to 480V, up to 575V, up to 690V with a frequency of 50Hz.

The value of the excitation circuit current of the built-in field controller

• dimensions 1A, 1B (from Mentor MP25A4R to MP210A4R): 8A;
• габарит 2A, 2B, 2C, 2D (от Mentor MP350A4R до MP1850A4R): 20А

Example of the nameplate (nameplate) of an electronic speed controller

1 – model of an automatic speed control device for a DC electric machine;

2 – rated power of the electric drive in kW and hp.;

3 – the values of the supply voltage, the industrial frequency of the supply network, the rated current of the input circuit of the electronics;

4 – nominal values of voltage and current of the output excitation circuit;

5 – nominal values of voltage and current of the input power circuit (power supply circuit);

6 – nominal values of the voltage and current of the output power circuit (anchor circuit), the value of the overload mode;

7 – code of the manufacturer of electrical equipment of the company Lero-Somer /Control Techniques;

8 – the factory number of the equipment;

9 – information on compliance with international standards.

Nominal parameters of the converters at an input voltage of 400V

In in is the rated input current of the electric drive power supply circuit, In out is the rated output current of the anchor circuit, Imax out is the maximum output current of the anchor circuit, Pn is the rated power of the electric motor, Iexc is the rated current of the field controller.

Nominal parameters of the converters at a voltage of 575V

In in is the rated input current of the electric drive power supply circuit, In out is the rated output current of the anchor circuit, Imax out is the maximum output current of the anchor circuit, Pn is the rated power of the electric motor, Iexc is the rated current of the field controller.

Nominal parameters of the converters at a voltage of 690V

In in is the rated input current of the electric drive power supply circuit, In out is the rated output current of the anchor circuit, Imax out is the maximum output current of the anchor circuit, Pn is the rated power of the electric motor, Iexc is the rated current of the field controller.

Graph of the time dependence of the maximum permissible output current of the electric drive during overloads

Note: 150% overcurrent for 30 seconds under normal conditions can be repeated up to 10 times per hour.

Dependence graphs reduction of nominal parameters of electric drives at elevated temperature