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2.1.3 Warnings and Approvals
Symbols used in this Programming Guide.
Symbols
The following symbols are used in this manual.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices.
CAUTION
Indicates a situation that may result in equipment or
property-damage-only accidents.
2.1.4 Abbreviations and Standards
Abbreviations
Terms
SI-units
I-P units
a
Acceleration
m/s
2
ft/s
2
AWG
American wire gauge
Auto Tune
Automatic Motor Tuning
°
C
Celsius
I
Current
A
Amp
I
LIM
Current limit
IT mains
Mains supply with star point in transformer floating to ground
Joule
Energy
J=N∙m
ft-lb, Btu
°
F
Fahrenheit
FC
frequency converter
f
Frequency
Hz
Hz
kHz
Kilohertz
kHz
kHz
LCP
Local Control Panel
mA
Milliampere
ms
Millisecond
min
Minute
MCT
Motion Control Tool
M-TYPE
Motor Type Dependent
Nm
Newton Metres
in-lbs
I
M,N
Nominal motor current
f
M,N
Nominal motor frequency
P
M,N
Nominal motor power
U
M,N
Nominal motor voltage
PELV
Protective Extra Low Voltage
Watt
Power
W
Btu/hr, hp
Pascal
Pressure
Pa = N/m²
psi, psf, ft of water
I
INV
Rated Inverter Output Current
RPM
Revolutions Per Minute
s
Second
SR
Size Related
T
Temperature
C
F
t
Time
s
s,hr
T
LIM
Torque limit
U
Voltage
V
V
Table 2.2 Abbreviation and Standards Table
Introduction
VLT
®
Micro Drive FC 51 Programming Guide
MG02C602 - VLT
®
is a registered Danfoss trademark
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