The Acsm1-204; What This Chapter Contains - ABB ACSM1 Hardware Manual

The ACSM1-204

What this chapter contains

This chapter describes the construction and operating principle of the regen supply
module in short.
The ACSM1-204
The ACSM1-204 regen supply module converts three-phase AC voltage and power
to DC voltage and power to supply drive modules via DC link.
The ACSM1-204 regen supply module can be used in single drive and multidrive
configurations. The regen filter module on the supply side keeps the line side
harmonics at a very low level. The regen filter module also includes EMC filtering.
The ACSM1-204 regen supply module can feed power via common DC bus to drive
modules, or braking power can be fed back to supply network. By default, the supply
module controls the DC voltage 2% above the peak value of the line-to-line voltage.
The DC voltage reference can be set also higher by a parameter. Two line currents
and the DC voltage are measured and used for the control.
Always use the regen filter module (WFU-xx) with the regen supply module
(ACSM1-204). Ensure that the filter is of appropriate size for the regen supply
module. See
The ACSM1-204 either has an air-cooled heatsink, or is to be installed on a cold
plate cooling element.
The ACSM1-204 is available in several frame sizes depending on output power. All
frame sizes use the same control unit (type JCU).
The installation must be equipped with a main contactor. For more information on
main contactors, see
Derating on page 70
Main contactor
for more information.
on page 39.
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The ACSM1-204