3-52
3.3.7 Wiring Precautions
!
Do NOT remove any protective covers or attempt any wiring while input power is
applied. Connect all wiring before applying input power. When making wiring
changes after power up, remove input power and wait a minimum of five minutes
after power has been turned off before starting. Also confirm that the charge lamp
is off and that DC voltage between terminals B1/P or (+) and (-) does not exceed
25V, otherwise electric shock may result.
Only authorized personnel should work on the equipment. (Take off metal jewelry
such as watches and rings and use insulated tools.), otherwise electric shock or
injury may result.
(A) Wiring for control circuit:
(1) Separate the wiring for control circuit terminals from main circuit wiring for terminals
(R/L1,
S/L2, T/L3, U/T1, V/T2, and W/T3).
(2) Separate the wiring for control circuit terminals (R1A, R1B, R1C / R2A, R2C /R3A, R3C)
from wiring for terminals
S1
～
S6
, A01, A02, GND, +10V-, AI1, AI2, and GND wiring.
(3) Use shielded twisted-pair cables (#24 - #14 AWG / 0.5 -2 mm
2
) shown in Fig. 3.3.7.1 for
control circuits to minimize noise problems. The maximum wiring distance should not
exceed 50m (165 ft).
Figure 3.3.7.1 Shielded Twisted-Pair
(B) Wiring for main circuit:
(1) The Input power supply voltage can be connected in any phase sequence to power input
terminals R/L1, S/L2, or T/L3 on the terminal block.
(2) DO NOT connect the AC input 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. If it does not, swap any 2
of the output cables to change motor direction.
(5) DO NOT connect phase correcting capacitors or LC/RC noise filter to the output circuit.
To Next Page
Loading...
