General Troubleshooting - TECO E510s Series Instruction Manual

5.2 General Troubleshooting

Status Checking point
Is the wiring for the output
Motor runs in
terminals correct?
wrong
Is the wiring for forward and
direction
reverse signals correct?
Is the wiring for the analog
frequency inputs correct?
The motor
speed can not Is the setting of operation mode
be regulated. correct?
Is the load too excessive?
Check the motor specifications
Motor
(poles, voltage... ) correct?
running
speed too Is the gear ratio correct?
high or too
Is the setting of the highest
low
output frequency correct?
Is the load too excessive?
Does the load vary excessively?
Motor speed
varies
unusually
Is the input power erratic or is
there a phase loss ?
Is the power connected to the
correct L1(L), L2, and L3(N)
terminals?
is the charging indicator lit ?
Is there voltage across the output
terminals T1, T2, and T3?
Is overload causing the motor to
stall?
Motor can
Are there any abnormalities in the
not run
inverter?
Is there a forward or reverse run
command ?
Has the analog frequency signal
been input?
Is the operation mode setting
correct?
Remedy
Wiring must match U, V, and W terminals of the
motor.
Check for correct wiring.
Check for correct wiring.
Check the Frequency
Source set in parameters 00-05/00-06.
Reduce the load.
Confirm the motor specifications.
Confirm the gear ratio.
Confirm the highest output frequency
Reduce the load.
(1) Minimize the variation of the load.
(2) Consider increasing the capacities of the
inverter and the motor.
(1) Consider adding an AC reactor at the power
input side if using single-phase power.
(2) Check wiring if using three-phase power.
(1) Is the power applied ?
(2) Turn the power OFF and then ON again.
(3) Make sure the power voltage is correct.
Make sure screws are secured firmly.
Turn the power OFF and then ON again.
Reduce the load so the motor will run.
See error descriptions to check wiring and
correct if necessary.
(1) Is analog frequency input signal wiring
correct?
(2) Is voltage of frequency input correct?
Operate through the digital keypad
5-14