Baldor MintDrive, Installation Manual

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2.4.2 Regeneration resistor (Dynamic Brake resistor)
The 2.5A and 5A MintDrives both have internally fitted regeneration resistors*. For 7.5A, 10A and 15A
MintDrives, an external regeneration (Dynamic Brake) resistor must be installed to dissipate excess
power from the internal DC bus during motor deceleration.
WARNING : A regeneration resistor may generate enough heat to ignite combustible materials.
To avoid fire hazard, keep all combustible materials and flammable vapors away
from the brake resistors.
Location Connector X1, single or 2-part connector
Voltage Resistor
power rating
MintDrive current rating 230VAC 115VAC
power rating
7.5A RG39 RG22 100W
10A RG10 RG4.7
320W
15A RG10 RG4.7
320W
Table 2 - Baldor regeneration resistor catalog numbers
All the regeneration resistors listed in section D.1.4 on page 139 are completely assembled and
enclosed in a IP21/NEMA 1 rated enclosure.
* Additional resistors connected to R1 and R2 will be connected in parallel with the internal resistor.
2.4.2.1 Regeneration resistor mounting
The regeneration resistor should be mounted near the top of an enclosure to maximize heat dissipation.
When the motor regenerates, the yellow
DB On LED on the front panel of the MintDrive will illuminate
while the voltage is exceeding the safe limit. See section D.1.4 on page 139.
R1
R2