Definitions - Danfoss VLT AutomationDrive FC 360 Programming Manual

Introduction
1 1
1.1.4 Approvals and Certifications

1.2 Definitions

1.2.1 Frequency Converter
Coast
The motor shaft is in free mode. No torque on the motor.
I
VLT,MAX
Maximum output current.
I
VLT,N
Rated output current supplied by the frequency converter.
U
VLT,MAX
Maximum output voltage.
1.2.2 Input
Control commands
Start and stop the connected motor with the LCP and
digital inputs.
Functions are divided into 2 groups.
Functions in group 1 have higher priority than functions in
group 2.
Group 1
Group 2
Table 1.3 Function Groups
1.2.3 Motor
Motor running
Torque generated on the output shaft and speed from
0 RPM to maximum speed on the motor.
f
JOG
Motor frequency when the jog function is activated (via
digital terminals or bus).
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).
4
Coast stop, reset and coast stop, quick stop, DC
braking, stop, and [OFF].
Start, latched start, start reversing, jog, freeze
output, and [Hand On].
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®
VLT AutomationDrive FC 360
I
M,N
Nominal motor current (nameplate data).
n
M,N
Nominal motor speed (nameplate data).
n
s
Synchronous motor speed.
2 × Parameter 1−23 × 60 s
n =
s
n
slip
Motor slip.
P
M,N
Rated motor power (nameplate data in kW or hp).
T
M,N
Rated torque (motor).
U
M
Instantaneous motor voltage.
U
M,N
Rated motor voltage (nameplate data).
Break-away torque
Torque
Illustration 1.1 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 start-disable command belonging to the control
commands in group 1. See Table 1.3 for more details.
Stop command
A stop command belonging to the control commands in
group 1. See Table 1.3 for more details.
1.2.4 References
Analog reference
A signal transmitted to the analog inputs 53 or 54 can be
voltage or current.
Binary reference
A signal transmitted via the serial communication port.
Parameter 1−39
Pull-out
RPM
MG06C702