GE Industrial Solutions AF-300C AC Drive - Manual (Page 99)

AF-300C GEK-85716
OVERHEAT
I
Is the inverter cooling NO
Check Power to Correct Power
fan working?
cooling fan. Supply Problem.
twisted wire for
YES Replace Cooling Fan.
control inputs. (Do not
connect terminals 11 or
Is the air YES
passage plugged?
Remove obstacles.
NO
Is ambient temperature YES Check Speed Pot
within specified value? wiring.
NO YES
N O
Check that proper
noise prevention
measures have YES
been taken.
I
Potential noise
interference.
Figure 8-4. OVERHEATS” TROUBLESHOOTING CHART
CPU ABBNORMAL
Display abnormal
or out
YES
Turn power OFF, then
Sack ON (after CHARGE
lamp goes out).
Use shielded and
twisted wire for
control inputs. (Do not
connect terminals 11 or
CM to earth ground.)
Has data been YES The inverter is normal;
N O
Check that proper
played on indicator? allow continuous noise prevention
operation. measures have YES
NO been taken.
Check that insertion of Potential noise
CPU into IC socket is interference. YES
Possible inverter
correct. failure Contact
I
lnverter Supplier
Figure 8-5. “CPU ABNORMAL” TROUBLESHOOTING CHART
8-7