ABB ACS550-01 User Manual page 136

136 ACS550 User's Manual
motor protection feature that complies with the requirements of UL 508C. When this
feature is selected and properly adjusted, additional overload protection is not
required unless more than one motor is connected to the drive or unless additional
protection is required by applicable safety regulations. See parameters 3005 (
MOT
) and 3006 ( ).
THERM PROT MOT THERM RATE
The drives are to be used in a controlled environment. See section "Ambient
Conditions" on page 134 for specific limits.
Brake chopper - ABB has brake choppers that, when applied with appropriately
sized brake resistors, will allow the drive to dissipate regenerative energy (normally
associated with quickly decelerating a motor).
Technical Data