Drive

A Drive consists of one or more sub components. A Drive always has internal capacitance as well as an Inverter that throttles power to the motor from the DC bus. In addition, some drives will have an Infeed Module and/or Bleeder Module.

Power flow to/from the DC bus is reduced proportionally by the inverter efficiency.

Drive Configurations

The following drive configurations are supported:

1. Infeed / Regen / Inverter

Regenerative infeed module with a controlled bus

Inverter
Capacitance

2. Infeed / Inverter / Bleeder

Line rectifier infeed module with an uncontrolled bus

Inverter
Capacitance
Bleeder

3. Infeed / Inverter

Line rectifier infeed module with an uncontrolled bus

Inverter
Capacitance

4. Inverter

Inverter
Capacitance

5. Infeed / Inverter / Chopper

No
Resistor

External
Resistor

Line rectifier infeed module with an uncontrolled bus

Inverter
Capacitance
Chopper only (no internal resistors)
External Resistor can be connected to the internal Chopper

6. Infeed / Inverter / ExtBleeder

No
Bleeder

External
Bleeder

Line rectifier infeed module with an uncontrolled bus

Inverter
Capacitance
Connection for External Bleeder

7. Dual Inverter

No infeed module

2x Inverters
Capacitance

8. Infeed / Inverter / IntExtBleeder

Internal
Bleeder

External
Resistor

Line rectifier infeed module with an uncontrolled bus

Inverter
Capacitance
Internal Bleeder with option to connect an
external resistor to the internal chopper

Note: When an external resistor is connected,
the internal resistor is not used.

9. Infeed / Inverter / BleederSC

Line rectifier infeed module with an uncontrolled bus

Inverter
Capacitance
Bleeder with shared cooling (SC)
Inverter and bleeder have shared cooling
Inverter rating is decreased depending on the amount of bleeder usage

10. Triple Inverter