1.3 Abbreviations and Acronyms
°C
Degrees Celsius
°F
Degrees Fahrenheit
Ω
Ohm
AC Alternating current
ACP Application control processor
AWG American wire gauge
AMA Automatic motor adaptation
CPU Central processing unit
CSIV Customer-specic initialization values
CT Current transformer
DC Direct current
DVM Digital voltmeter
EEPROM
Electrically erasable programmable read-only
memory
EMC Electromagnetic compatibility
EMI Electromagnetic interference
ESD Electrostatic discharge
ETR Electronic thermal relay
f
M,N
Nominal motor frequency
FC Frequency converter
FPC Fan power card
HF High frequency
HVAC Heating, ventilation, and air conditioning
Hz Hertz
I
LIM
Current limit
I
INV
Rated inverter output current
I
M,N
Nominal motor current
I
VLT,MAX
Maximum output current
I
VLT,N
Rated output current supplied by the drive
IEC International electrotechnical commission
IGBT Insulated-gate bipolar transistor
I/O Input/output
IP Ingress protection
kHz Kilohertz
kW Kilowatt
L
d
Motor d-axis inductance
L
q
Motor q-axis inductance
LC Inductor-capacitor
LCP Local control panel
LED Light-emitting diode
LOP Local operation pad
mA Milliamp
MCB Miniature circuit breakers
MCO Motion control option
MCP Motor control processor
MCT Motion control tool
MDCIC Multi-drive control interface card
mV Millivolts
NEMA National Electrical Manufacturers Association
NTC Negative temperature coecient
P
M,N
Nominal motor power
PCB Printed circuit board
PE Protective earth
PELV Protective extra low voltage
PID Proportional integral derivative
PLC Programmable logic controller
P/N Part number
PROM Programmable read-only memory
PS Power section
PTC Positive temperature coecient
PWM Pulse width modulation
R
s
Stator resistance
RAM Random-access memory
RCD Residual current device
Regen Regenerative terminals
RFI Radio frequency interference
RMS
Root means square (cyclically alternating electric
current)
RPM Revolutions per minute
SCR Silicon controlled rectier
SMPS Switch mode power supply
S/N Serial number
STO Safe Torque Oîš‚
T
LIM
Torque limit
U
M,N
Nominal motor voltage
V Volt
VVC Voltage vector control
X
h
Motor main reactance
Table 1.1 Abbreviations, Acronyms, and Symbols
Introduction
VLT
®
FC Series, D1h–D8h, Da2/Db2/Da4/Db4, E1h–E4h, J8/J9
10 Danfoss A/S © 02/2019 All rights reserved. MG94A502
11