Yaskawa Varispeed-686SS5 CIMR-SSA - Manual (Page 26)

3 WIRING
27
(2) Wiring Precautions for Main Circuit Output
(a) Connection of Terminal Block and Load
Connect output terminals U, V and W to motor lead wires U, V and W. For standard connec-
tions, be sure to connect the motor leads to the correct output terminals: motor lead U to
output terminal U, motor lead V to output terminal V, and motor lead W to output terminal
W.
With the standard connection for the output terminals, the motor rotates counterclockwise
as viewed from the load side in a forward operation. To rotate the motor clockwise in a for-
ward operation, connect the output terminals as refered in Appendix 6.
(b) Strict Prohibition of Connection of Input Power Supply to Output Terminals
Never connect the input power supply to output terminals U, V and W.
(c) Installation of Low-voltage Manual Starter
Make sure to connect a low-voltage manual starter to the inverter output side when the mo-
tor is rotated by the load even if the inverter power supply is OFF. Turn OFF the starter be-
fore performing maintenance/inspection or wiring.
Example: LB series of AICUT manufactured by Aisei
(d) Strict Prohibition of Short Circuiting or Grounding of Output Circuit
Never touch the output circuit directly or put the output line in contact with the inverter case.
Otherwise, it may cause an electric shock or grounding. In addition, never short circuit the
output line.
(e) Prohibition of Connection of Phase Advancing Capacitor or LC/RC Line Filter
Never connect a phase advancing capacitor or LC/RC line filter to the output circuit.
(f) Avoidance of Installation of Magnetic Starter
Do not connect a magnetic starter or magnetic contactor to the output circuit. If the load
is connected while the inverter is running, the inverter overcurrent protective circuit oper-
ates because of inrush current.
(g) Installation of Thermal Overload Relay
An electronic overload protective function is incorporated into the inverter. When using
a thermal overload relay, set inverter constant L1-01 to 0 (motor protection selection: dis-
abled).