
1.1.3 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
par.
Parameter
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
SR
Size Related
T
Temperature
C
F
t
Time
s
s,hr
T
LIM
Torque limit
U
Voltage
V
V
Table 1.1: Abbreviation and standards table
Introduction
VLT
®
HVAC Drive Operating Instructions
MG.11.AD.02 - VLT
®
is a registered Danfoss trademark
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