Yaskawa J7 Drive - Manual (Page 4)

- ii -
CAUTION
Parameter n10 must be set to proper motor voltage.
CAUTION
Always ground the drive using its ground terminal ( ) (near the main
circuit output terminals). See paragraph 1.4A, “Grounding”.
Never connect main circuit output terminals T1 (U), T2 (V) & T3 (W) to AC
main circuit power supply.
CAUTION
When drive is programmed for auto-restart ( n48 = " 1 " thru " 10 "), the
motor may restart unexpectedly — personal injury may result.
IMPORTANT
Wiring should be performed only by qualified personnel.
Always ground the drive using ground terminal ( ). See paragraph 1.4C, “Grounding”.
Verify that the rated voltage of the drive matches the voltage of the incoming power.
Never connect main circuit output terminals T1, T2, and T3 to AC main circuit power supply.
All parameters have been factory set. Do not change their settings unnecessarily.
Do not perform a “HIPOT” or withstand voltage test on any part of the drive. Equipment uses semi-
conductors and is vulnerable to high voltage.
The Control PCB employs CMOS ICs which are easily damaged by static electricity. Use proper
electrostatic discharge (ESD) procedures when handling the Control PCB. Never touch the printed
control board (PCB) while the main input power is turned on.
Any modification of the product by the user is not the responsibility of Yaskawa, and will void the
warranty.
Do not remove the Digital Operator or change dipswitch SW8 or rotary switch SW7 unless the main
input power is turned OFF..
This drive is not suitable for use on a circuit capable of delivering more than 18,000 RMS symmetrical
amperes at either 250 volts maximum or 480 volts maximum.