Definitions - Danfoss FC 300 Programming Manual

Introduction
1 1

1.1.4 Definitions

Frequency converter:
I
VLT,MAX
Maximum output current.
I
VLT,N
Rated output current supplied by the frequency converter.
U
VLT, MAX
Maximum output voltage.
Input:
Control command
Start and stop the connected motor by means of LCP and
digital inputs.
Functions are divided into two groups.
Functions in group 1 have higher priority than functions in
group 2.
Group 1
Group 2
Motor:
Motor Running
Torque generated on output shaft and speed from zero rpm to
max. speed on motor.
f
JOG
Motor frequency when the jog function is activated (via digital
terminals).
f
M
Motor frequency.
f
MAX
Maximum motor frequency.
f
MIN
Minimum motor frequency.
f
M,N
Rated motor frequency (nameplate data).
I
M
Motor current (actual).
I
M,N
Rated motor current (nameplate data).
n
M,N
Rated motor speed (nameplate data).
n
s
Synchronous motor speed
par
2 × . 1 − 23 × 60
n s
=
par
. 1 − 39
P
M,N
Rated motor power (nameplate data in kW or HP).
T
M,N
Rated torque (motor).
4
Reset, Coasting stop, Reset and Coasting stop, Quick-
stop, DC braking, Stop and the [OFF] key.
Start, Pulse start, Reversing, Start reversing, Jog and
Freeze output
s
MG.33.M9.02 - VLT
FC 300 Programming Guide
U
M
Instantaneous motor voltage.
U
M,N
Rated motor voltage (nameplate data).
Break-away torque
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
- see this group.
Stop command
See Control commands.
References:
Analog Reference
A signal transmitted to the analog inputs 53 or 54, can be
voltage or current.
Binary Reference
A signal transmitted to the serial communication port.
Preset Reference
A defined preset reference to be set from -100% to +100% of
the reference range. Selection of eight preset references via
the digital terminals.
Pulse Reference
A pulse frequency signal transmitted to the digital inputs
(terminal 29 or 33).
Ref
MAX
Determines the relationship between the reference input at
100% full scale value (typically 10 V, 20mA) and the resulting
reference. The maximum reference value set in
par. 3-03 Maximum Reference.
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