Definitions - Danfoss VLT AutomationDrive FC 300 Design Manual

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1.6 Definitions

Drive:
I
VLT,MAX
The maximum output current.
I
VLT,N
The rated output current supplied by the frequency
converter.
U
VLT, MAX
The maximum output voltage.
Input:
Control command
Start and stop the
connected motor with the
LCP or the digital inputs.
Functions are divided into
two groups.
Functions in group 1 have
higher priority than
functions in group 2.
Table 1.4 Input Functions
Motor:
f
JOG
The motor frequency when the jog function is activated
(via digital terminals).
f
M
The motor frequency.
f
MAX
The maximum motor frequency.
f
MIN
The minimum motor frequency.
f
M,N
The rated motor frequency (nameplate data).
I
M
The motor current.
I
M,N
The rated motor current (nameplate data).
n
M,N
The rated motor speed (nameplate data).
10
®
VLT AutomationDrive FC 300 Design Guide 90-1200 kW
Group Reset, coasting stop, reset
1 and coasting stop, quick-
stop, DC braking, stop and
the "Off" key.
Group Start, pulse start, reversing,
2 start reversing, jog, and
freeze output.
MG34S202 - Rev. 2013-08-19
P
M,N
The rated motor power (nameplate data).
T
M,N
The rated torque (motor).
U
M
The instantaneous motor voltage.
U
M,N
The rated motor voltage (nameplate data).
Break-away torque:
n
s
Synchronous motor speed.
par . 1 − 23 × 60 s
2 ×
n s =
par . 1 − 39
Torque
Illustration 1.1 Break-Away Torque Chart
η
VLT
The efficiency of the frequency converter is defined as the
ratio between the power output and the power input.
Start-disable command
A stop command belonging to the group 1 control
commands.
Stop command
See control commands parameter group.
References:
Analog Reference
A signal transmitted to the 53 or 54, can be voltage or
current.
Pull-out
rpm