Delta Electronics VFD037CH23A-21 — основные терминалы цепи: рекомендации по подключению и эксплуатации [54/638]

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Delta Electronics VFD450CH23A-00/-21 [54/638] Terminals for connecting dc reactor external brake resistor external brake resistor and dc circuit
Chapter 5 Main Circuit Terminals
5-3
0.1-second operation time to avoid nuisance tripping.
Please use the shield wire or tube for the power wiring and ground the
two ends of the shield wire or tube.
Do NOT run/stop AC motor drives by turning the power ON/OFF.
Run/stop AC motor drives by RUN/STOP command via control terminals
or keypad. If you still need to run/stop AC motor drives by turning power
ON/OFF, it is recommended to do so only ONCE per hour.
Output terminals for main circuit
When it needs to install the filter at the output side of terminals U/T1,
V/T2, W/T3 on the AC motor drive. Please use inductance filter. Do not
use phase-compensation capacitors or L-C (Inductance-Capacitance) or
R-C (Resistance-Capacitance), unless approved by Delta.
DO NOT connect phase-compensation capacitors or surge absorbers at
the output terminals of AC motor drives.
Use well-insulated motor, suitable for inverter operation.
Terminals for connecting DC reactor, external brake resistor, external
brake resistor and DC circuit
This is the terminals used to connect the DC reactor to improve the
power factor. For the factory setting, it connects the short-circuit object.
Please remove this short-circuit object before connecting to the DC
reactor.
+1
+2
DC reactor (optional)
When the AC Motor Drive is connected directly to a large-capacity power
transformer (600kVA or above) or when a phase lead capacitor is
switched, excess peak currents may occur in the power input circuit due
to the load changes and the converter section may be damaged. To
avoid this, it is recommend using a serial connected AC input reactor
(6%) at the AC Motor Drive mains input side to reduce the current and
improve the input power efficiency.
Connect a brake resistor or brake unit in applications with frequent
deceleration ramps, short deceleration time, too low brake torque or
requiring increased brake torque.
B1
B2
BR
+
-
VFDB
Brake resistor
(optional)
Brake resistor
(optional)
Brake unit
(optional)

Содержание

1610

Узнайте о правильном подключении основных терминалов цепи, использовании фильтров и резисторов, а также о рекомендациях по эксплуатации для предотвращения повреждений.