Precautions Main Circuit Wiring - abc 2000 Series User Manual

(2)Mouldod case circuit broakor:(MCCB)
When the power supply voltage is low or the input terminal
short circuit occurs.the breaker can provide protection,during
inspection,maintenance or the inverter is not running,you can cut off
the breaker to
(3)Magnetic contractor{MC)
The contractor can tum on and tum
ensure safety.
(4)AC current reactor
a suppress high harmonic
(5)Brake resistor
When the motor is braking, the resistor can avoid DC bus high
voltage of the inverter ,and improve the braking ability
brake unit
2.3.3

Precautions main circuit wiring

(1) circuit wiring ,refer
(2)Application of supply power to output terminals(U,V,W)of the
will
invert damage it,so never perform such wiring.
(3)Power supply's wiring ,please use isolated wire and wire pipe if
possible.and make isolated wire and wire pipe link to the earth.
(4)The inverter and welding device, high-power motor,high-power
load can't use a earth cable.
(5) The ground terminal E,ground impedance is lower than 1000
(6)Use the shortest earth cable possible,
(?)Many inverters are earthed, pay attention not
loops.
(8)the power cables and the control cables must be separated in
the main circuit. keep the power cables more than 10
the paral!elled control cables.when the power cables and 1he control
cables are crossed,make them vertical.Don't make the power cables
and the control cables together, or the interference will cause.
(9}Under normal circumstances,the diatance bet.ween the inverters
and the motors is less than 30m,the current produced by the
parasitic capacitance may cause over-current protection, mis­
action,inverter's fault and equipment operating faults .The maximum
distance is 100m,when the distance is long, please select the output
side filter,and reduce the carrier frequency.
(10)Don't install an absorbing capacitor or other capacitance­
resistance absorbing devices.
separate the inverter from the power supply.
to
to requirements of electrical oodes.
off
the power
protect the inverter to ensure safety.
of the inverter
of
the internal
to
cause ground
away from
cm
to