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Slip compensation
The drive compensates for the motor slip by giving the frequency a supple-
ment that follows the measured motor load keeping the motor speed al-
most constant.
Start-disable command
A start command belonging to Group 2 control commands, see the
table
Function Groups
under
Control Command
.
Stop command
A stop command belonging to Group 1 control commands, see the
table
Function Groups
under
Control Command
.
T
T
M,N
Rated torque (motor).
Target position
The final target position specified by positioning commands. The profile
generator uses this position to calculate the speed profile.
Thermistor
A temperature-dependent resistor placed on the drive or the motor.
Trip
A state entered in fault situations, for example, if the drive is subject to an
overtemperature or when the drive is protecting the motor, process, or
mechanism. The drive prevents a restart until the cause of the fault has dis-
appeared. To cancel the trip state, restart the drive. Do not use the trip state
for personal safety.
Trip lock
The drive enters this state in fault situations to protect itself. The drive re-
quires physical intervention, for example when there is a short circuit on the
output. A trip lock can only be canceled by disconnecting mains, removing
the cause of the fault, and reconnecting the drive. Restart is prevented until
the trip state is canceled by activating reset or, sometimes, by being pro-
grammed to reset automatically. Do not use the trip lock state for personal
safety.
U
U
M
Motor voltage.
U
M,N
Rated motor voltage (nameplate data).
V
VT characteristics
Variable torque characteristics typical for many pumps and fans.
AJ300847815559en-000101/130R0337
216 | Danfoss A/S © 2020.09
Glossary
VLT® AQUA Drive FC 202
Design Guide