Yaskawa GPD 506/P5 Section One - Manual (Page 43)

PP.P5G5.01.Troubleshoot
Page 43
Rev. 06/11/2003
Cooling Fan
for models 0.4kw through 15kW
Most GPD 506/P5 and GPD 515/G5 units have a cooling fan that
blows air across the heat sink on the back of the unit. If the cooling
fan is not working properly, the inverter will trip on an overheat
fault. 15kW models and below use a 24 VDC cooling fan.
Visually check the cooling fan to make sure it turns freely. If there
is no physical evidence that the fan is bad, the motor can be
checked with an ohmmeter or a 24 VDC power supply. Using an
ohmmeter, measure across the fan motor terminals. If the
measured value is 0 ohms, we can conclude that the motor is
shorted, or if the measured value is infinite ohms, we can conclude
that the motor is burned open. If the fan is not working, then
disconnect the fan and apply 24 VDC to the fan to test the motor.
24 v
+ -
The fan connector plugs in to
the powerboard at 9CN or 10CN.
DC Power Supply