Fuji Electric frenic mini series, User Manual

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Glossary
G-1
Glossary
Acceleration time
Period required from when the inverter starts
accelerating its output from 0 Hz until it reaches
the set maximum frequency.
Related function codes: E10, F07, H54
Alarm mode
One of the three operation modes supported by the
inverter. If the inverter detects any malfunction or
fault, it immediately stops its output and enters this
mode in which alarm codes are displayed on the
LED monitor.
Alarm output (for any faults)
A mechanical contact output signal that is
generated when the inverter is halted by an alarm,
by short-circuiting between terminals [30A] and
[30C].
Related function code: E27
See Alarm mode.
Analog input
Means to command the inverter the set frequency
to drive a motor with the external current and
voltage input. The analog voltage is applied on the
terminal [11], the current on the [C1]. These
terminals are also used to input the signal from the
external potentiometer, PTC and PID feedback
signals depending on the function code definition.
Related function codes: F01, C30, E60 to E62 and
J02
Analog output
An analog output signal of the monitored data such
as the output frequency, the current and voltage
inside an inverter. The signal drive an analog meter
installed outside the inverter for indicating the
current inverter running status.
Refer to Chapter 8, Subsection 8.4.1 "Terminal
Functions."
Applicable motor rating
Rated output (in kW) of a general-purpose motor
that is used as a standard motor listed in tables in
Chapter 6, "SELECTING PERIPHERAL
EQUIPMENT" and Chapter 8, "SPECIFICA-
TIONS."
Automatic deceleration
A control mode in which deceleration time is
automatically extended to prevent the inverter
from tripping due to an overvoltage caused by
regenerative power where a braking resistor is not
used.
Related function code: H69
Automatic energy saving operation
To automatically drive the motor with lower output
voltage when the motor load has been light, for
minimizing the product of voltage and current
(electric power).
Related function code: F37
AVR (Automatic Voltage Regulator) control
A facility that keeps an output voltage constant
regardless to variations of the input source voltage
or load.
Base frequency
The minimum frequency at which an inverter
delivers a constant voltage in the output V/f
pattern.
Related function code: F04
Bias
A value to be added to an analog input frequency
to modify and produce the output frequency.
Related function codes: F18, C50 to C52
Braking torque
Torque that acts in a direction that will stop a
rotating motor (or the force required to stop a
running motor).