Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 103)

PC NC Maintenance Manual The VS-626M5
4-82
Wiring
Operation
• Only commence wiring after verifying that the power supply is turned OFF. Failure to
observe this warning can result in an electric shock or a fire.
• Wiring must be performed only by qualified personnel. Failure to observe this warning
can result in an electric shock or a fire.
• When wiring the emergency stop circuit, check the wiring thoroughly before operation.
Failure to observe this warning can result in personal injury.
• Ensure the ground terminal is grounded. 200V class: ground to 100 or less. Failure to
observe this warning can result in an electric shock or a fire.
• Verify that the converter rated voltage coincides with the AC power supply voltage.
Failure to observe this caution can result in personal injury or a fire.
• Do not perform a withstand voltage test of the inverter and the converter. It may cause
the semi-conductor elements to be damaged.
• Connect the inverter and the converter as shown in the connection diagram, to avoid
damage to the inverter or converter.
• Tighten the terminal screws to the specified tightening torque. Failure to observe this
caution can result in a fire.
• Never connect the AC main circuit power supply to output terminals U/T1, V/T2 and
W/T3. The inverter may be damaged.
• Only turn ON the input power supply after closing the upper and lower cover. Do not
open the covers while current is flowing. Failure to observe this warning can result in
an electric shock.
• Because the Stop button can be disabled by a function setting, install a separate
emergency stop switch. Failure to observe this warning can result in personal injury.
WARNING
CAUTION
WARNING