External Circuit Wiring Precaution - TECO speecon 7200ma Instruction Manual

■ 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
(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.
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.
7200MA
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.
Shield sheath
Connect to shield
sheath terminal E
Insulated with tape
Fig. 3 Processing the ends of twisted-pair cables
50 mA max.
external wiring circuit
∼ , A01, A02, GND, DO1, DO2
Armor
Do not
connect here
48V max.
free-wheeling diode
(100V, >100mA)
16