TECO speecon 7200ma - External Circuit Wiring Precautions; Control Circuit Wiring Separation

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■ External circuit wiring precaution:
(A) Control circuit wiring:
(1) Separate the control circuit wiring from main circuit wiring (R/L1, S/L2, T/L3,
U/T1, V/T2, W/T3) and other high-power lines to avoid noise interruption.
(2) Separate the wiring for control circuit terminals RA-RB-RC (R1A-R2B-R2C)
(contact output) from wiring for terminals
c
∼
j
, A01, A02, GND, DO1, DO2
(R2A-R2C), DOG and 15V, VIN, AIN, AUX, GND, IP12, IG12, A (+), A (-).
(3) Use the twisted-pair or shielded twisted-pair cables for control circuits to prevent
operating faults. Process the cable ends as shown in Fig. 3. The max. wiring
distance should not exceed 50 meter.




Connect to shield
sheath terminal E
Shield sheath
Armor
Do not
connect here
Insulated with tape
Fig. 3 Processing the ends of twisted-pair cables
When the digital multi-function output terminals connect serially to an external
relay, an anti-parallel freewheeling diode should be applied at both ends of relay, as
shown below.
free-wheeling diode
(100V, >100mA)
48V max.
50 mA max.
7200MA
external wiring circuit
Fig. 4 The Optical-couplers connect to external inductive load
(B) Wiring the main circuit terminals:
(1) Input power supply can be connected to any terminal R/L1, S/L2 or T/L3 on the
terminal block. The phase sequence of input power supply is irrelevant to the
phase sequence.
(2)
Never connect the AC power source to the output terminals U/T1, V/T2 and. W/T3.
(3) Connect the output terminals U/T1, V/T2, W/T3 to motor lead wires U/T1, V/T2,
and W/T3, respectively.
(4) Check that the motor rotates forward with the forward run source. Switch over
any 2 of the output terminals to each other and reconnect if the motor rotates in
reverse with the forward run source.
(5)
Never connect a phase advancing capacitor or LC/RC noise filter to an output cir
cuit.