Fuji Electric frenic mini series, Руководство пользователя

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G-4
Main circuit terminals
Power input/output terminals of an inverter, which
includes terminals to connect the power source,
motor, DC rector, braking resistor, and other
power components.
Maximum frequency
The output frequency commanded by the input of
the maximum value of a frequency setup signal
(for example, 10V for a voltage input range of 0 to
10V or 20 mA for a current input range of 4 to 20
mA).
Related function code: F03
Modbus RTU
Communication protocol used in global FA
network market, which is developed by Modicon,
Inc. USA.
Momentary voltage dip capability
The minimum voltage (V) and time (ms) that
permit continued rotation of the motor after a
momentary voltage drop (instantaneous power
failure).
Multi-step frequency selection
To preset frequencies (up to 7 stages), then select
them at some later time using external signals.
Related function codes: E01 to E03, C05 to C11
Overload capability
The overload current that an inverter can tolerate,
expressed as a percentage of the rated output
current and also as a permissible energization time.
PID control
The scheme of control that brings controlled
objects to a desired value quickly and accurately,
and which consists of three categories of action:
proportional, integral and derivative. Proportional
action minimizes errors from a set point. Integral
action resets errors from a desired value to 0.
Derivative action has the proportional relationship
of deviation between derivative of the commanded
(frequency) and controlled amounts.
Related function codes: E01 to E03, E40, E41,
E43, E60 to E62, C51, C52, J01 to J06
Programming mode
One of the three operation modes supported by the
inverter. This mode uses the menu-driven system
and allows the user to set function codes or check
the inverter status/maintenance information.
PTC (Positive Temperature Coefficient)
thermistor
Type of thermistor with a positive temperature
coefficient. Used to safeguard a motor.
Related function codes: H26 and H27
Rated capacity
The rating of an output capacity, or the apparent
power that is represented by the rated output
voltage times the rated output current, which is
calculated by solving the following equation and is
stated in kVA:
3
10 ) A ( current output Rated
) V ( voltage output Rated 3
) kVA ( capacity Rated
−
× ×
× =
The rated output voltage is assumed to be 220 V
for 200 V class equipment and 440 V for 400 V
class equipment.
Rated output current
A total RMS equivalent to the current that flows
through the output terminal under the rated input
and output conditions (the output voltage, current,
frequency, and load factor meet their rated
conditions). Essentially, equipment rated at 200 V
covers the current of a 200 V, 50 Hz 6-pole motor
and equipment rated at 400 V covers the current of
a 380 V, 50 Hz 4-pole motor.
Rated output voltage
A fundamental wave RMS equivalent to the
voltage that is generated across the output terminal
when the AC input voltage (supply voltage) and
frequency meet their rated conditions and the
output frequency of the inverter equals the base
frequency.
Required power supply capacity
The capacity required of a power supply for an
inverter. This is calculated by solving either of the
following equations and is stated in kVA:
60Hz) (220V, current RMS Input 220 3
or
50Hz) (200V, current RMS Input 200 3
(kVA) capacity supply power Required
× × =
× × =
0Hz) 6 (40V, current RMS Input 440 3
or
50Hz) (400V, current RMS Input 400 3
(kVA) capacity supply power Required
× × =
× × =