8-4 Check first when you have troubles
If the causes is still unknown after every check, it is recommended to initialize the
parameters (initial value) then reset the required parameter values and check again.
(1) Parameter write cannot be performed Causes and corrective actions:
a: Check P118 parameter write selection.
b: Check P101 Frequency setting/P102 Operation mode setting
selection.
c: Make sure that operation is not being performed. Please stop the inverter and set.
(2) Motor does not rotate as commanded Causes and corrective actions:
a: Check that the P102 Operation mode selection setting is correct, b: Check that the
starting frequency setting is not greater than the running frequency.
c: Check the main circuit and control circuit, d: Check that the output stop signal or
reset signal is not on. e: Check that P104 Reverse rotation prevention selection is not
selected.
f: Check that frequency setting of each running frequency (such as multi-speed
operation) are not zero.
g:Check that especially the P105 Maximum frequency setting in not zero.
h: Check that the P400 Jog frequency setting is not lower than the P202 starting
frequency setting, i: Check that the load is not too heavy.
(3) Motor generates heat abnormally Causes and corrective actions:
a: Check that the load is not too heavy. Lighten the load.
b: Is the fan for the motor is running ? (check for accumulated dust.) c: Check that the
P208 Torque boost setting is correct, d: Was the motor type set? Check the setting of
P209 to P219 applied motor.
e: When using any other manufacturer's motor，perform offline auto tuning.
(4) Motor generates abnormal noise Causes and corrective actions:
a: No carrier frequency noises (metallic noises) are generated.
Check the setting of P115 applied motor, b: Check for any
mechanical looseness, c: Contact the motor manufacturer.
(5) Motor rotates in opposite direction Causes and corrective actions:
a: Check that the phase sequence of output terminals U,V and W is correct.
b: Check that the start signals (forward rotation, reverse rotation)are connected
properly.
(6) Speed does not increase Causes and corrective actions:
a: Check that the maximum frequency (P105)setting is correct. (If you want to run the
motor at 120Hz or more, set P105 High speed maximum frequency.)
b: Check that the load is not too heavy. (In agitators, etc, load may become heavier in
winter.)
8
106
Chapter 8 Troubleshooting and Fault Informatin
FC100 Series User Manaul
To Next Page
Loading...
Need help?
General
