Cooling Fan
Incoming AC Voltage
Inspect the spindle fan cable connection. Make
sure both spade connectors are properly going
into the female connector.
Corrective Action:
An over-temperature alarm is generated when
the vector drive's heat-sink reaches 90°C. The
cooling fan must turn ON when the heat-sink
temperature reaches 50°C. The cooling fan must
turn OFF as the heat-sink cools down.
Measure the temperature of the vector drive's
heat-sink through the exhaust vents when this
alarm occurs. If the temperature is above 60°C
and the fan is not ON, the vector drive has a
faulty cooling fan. Replace the cooling fan.
Corrective Action:
Measure the incoming voltage to the machine.
Make sure that the incoming voltage is within the
range of the transformer’s tap. Move the lines to
the correct tap if needed.
Vector Drive - Troubleshooting Guide - NGC
Page 8 of 9 pages
