EC5000
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Installation and Wire Layout
2
EC5000
Installation and Wire Layout
Positive rotation
■ The output terminal of AC drive can’t be connected to the inlet phase
capacitor or surge absorber. If the wires are very long, it should be connected
with the AC reactor on the output end.
■ There is high frequency current in the extra long wire between
motor and AC drive. This may cause AC drive over flow and stop.
Besides, long wire increase leaking current, this leads to poor precision
of current value. AC drive≤ 3.7KW choose wire less than 20 meters to
motor, less than 50 meters for AC drive over 3.7 KW. If the wire is very
long a wave filter connected to the output side AC reactor is necessary
■Used insulation strengthened motor
Connection terminals of DC reactor [ ， ]
+
2
+
2
+
1
+
1
DC reactor short circuit plate
The connection terminals of the external brake resistor [ ,PR] and the
connection terminals of the brake unit [ , ]
+
1
Brake resistor/unit(optional component)
+
1
+
1
-
■ To cut off power and avoid accident when AC drive protection
power is on, electromagnetic contactor to connecting to the circuit is
necessary. (The two ends of the electromagnetic contactor should be
equipped with R-C surge absorber).
■ Don’t use main loop ON/OFF switch to start and stop AC drive.
Use loop control terminal FWD, REV or RUN/STOP button on the control
panel to start and stop AC drive. If you must use main power supply
ON/OFF switch to start and stop, do it no more than 1 time within one
hour.
■Do not connect the 3-phase power supply machine with the single-
phase power supply.
Output terminals of AC drive(U/T1. V/T2. W/T3)
■ Connect AC drive output terminal to 3 phase motor according to
correct phase order. If motor rotates in wrong direction, change any 2
phase of U,V,W.
■Please do not connect the AC with the output terminal (U/T1, V/T2 and
W/T3) of AC drive;otherwise it may cause AC drive damage.
■Ensure that the screws of the main loop terminals are tightened to
prevent the sparks caused by the loose screw due to vibration.
■The wires of main loop and those of control loop must be separated
to avoid misoperation. If an intersection is needed, make them intersect
with a right angle.
■ Please use isolated cable and conduit,and connect with the two
ends of the shielding layer or conduit with ground.
■ If the installation place of the AC drive is extremely sensitive to
Description of the power supply input terminals of the main loop(R/L1 S/L2 T /L3)
■ Ascertain the voltage of power supply and the maximum current
that can supply.
■Main loop terminal R/L1, S/L2, T/L3 is connecting to a three-phase
AC power through the circuit (wiring) protection with circuit breakers or
earth leakage protection circuit breakers, without considering phase
sequence connection
DC reactor connetion terminal
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