Motor overload protection
The electronic thermal relay (ETR) in UL listed VLTs
provides Class 20 motor overload protection in ac-
cordance with the NEC in single motor applications
when parameter 128 is set for "ETR TRIP" and pa-
rameter 105 Motor current is set for the rated motor
current.
Warning
It can be extremely dangerous to touch the electrical parts, even when the line supply has been disconnected.
Also ensure that other voltage inputs are disconnected from load sharing through the DC bus.
Wait at least 4 minutes after the input power has been removed before servicing the drive.
VLT
®
2800 Series
MG.27.A2.22 - VLT
®
is a registered Danfoss trademark 5
Introduction to VLT 2800
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