The DCS800-S0x power converter module carries a NEMA TYPE OPEN (IP00) rating and must be mounted in a protective enclosure. There are seven different frame sizes, D1 through D7, graduated in terms of current and voltage.
Regenerative and Non-Regenerative Drives
Non-regenerative (2-Q) power converter modules are used when motor torque and speed are always in the same direction and when significant stopping power is not required.
This is ideal for applications such as:
- Fan or blower
It is not possible for a 2-Q drive to slow down an inertial load.
The load will stop only due to friction, windage, or another form of load resistance. It is also not possible for a non-regenerative drive to reverse direction unless field reversal is used.
Regenerative (4-Q) power converter modules are used when motor torque can occur in either direction. This is for applications such as:
- Stop-start conveyor
- Draw Roll
- Rolling mill
- Overhead crane hoist
A 4-Q drive is able to start and stop an inertial load in both forward and reverse directions.
Field Power Supplies and Fusing
Converter modules sizes D1 through D5 are equipped with fused internal field power supplies. Sizes D6 – D7 require an external field power supply. See page 21 for details.
AC line fuses and DC armature fuses must be separately mounted. See page 24 for fuse information as well as information on other optional system components.
AC line fuses to be separately mounted on sizes D1 – D4.
They are included internally on D5 – D7. DC armature fuses are needed for all 4-Q drives and are to be separately mounted.
See page 26 for fuse recommendations as well as specifications for other external system components.