Output Terminals For Main Circuit; Terminals For Connecting Dc Reactor, External Brake Resistor, Externalbrake Resistor And Dc Circuit - Delta C2000 series User Manual
Classical field oriented control
ac motor drive
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Also See for C2000 series:
- User manual (936 pages) ,
- Manual (22 pages) ,
- Product application (5 pages)
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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.
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 to use 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.
Brak e re sistor
(optional)
B1
For Frame A~C, the external brake resistor should connect to the terminals
(B1, B2) of AC motor drives.
Chapter 5 Main Circuit TerminalsC2000 Series
DC rea ct or (o ption al)
+ 1
+ 2
Brak e re sistor
(optional)
BR
VFDB
B 2
+
5-3
Brak e un it
(o ption al)
-
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