High Temperature
High ambient temperature may overheat the adjustable frequency drive.
Line Drop-out
During a line drop-out, the adjustable frequency drive keeps running until the intermediate circuit voltage drops below the minimum stop level, which is
typically 15% below the adjustable frequency drive's lowest rated supply voltage.
The AC line voltage before the drop-out and the motor load determine how long it takes for the inverter to coast.
Static Overload in VVC
plus
mode
When the adjustable frequency drive is overloaded (the torque limit in par. 4-16/4-17 is reached), the control reduces the output frequency to reduce
the load.
If the overload is excessive, a current may occur that makes the adjustable frequency drive cut out after approximately 5-10 s.
Operation within the torque limit is limited in time (0-60 s) in par. 14-25.
VLT
®
AQUA Drive Design Guide
2 Introduction to the VLT AQUA Drive
MG.20.N5.22 - VLT
®
is a registered Danfoss trademark
2-29
2
Содержание vlt aqua
Страница 4: ...Contents VLT AQUA Drive Design Guide MG 20 N5 22 VLT is a registered Danfoss trademark...
Страница 168: ...5 How to Install VLT AQUA Drive Design Guide 5 50 MG 20 N5 22 VLT is a registered Danfoss trademark 5...
Страница 186: ...6 Application Examples VLT AQUA Drive Design Guide 6 10 MG 20 N5 22 VLT is a registered Danfoss trademark 6...