TECO F510 series, Quick Setting Manual

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49
LED display Possible solutions
Communication
Error

Replace the control board
CF01
Operator
Communication
Error 2

Disconnect the operator and
then reconnect.

Replace the control board
CT Fault

Check input voltage signal
and the voltage on the
control board.
Double
Communication
Error

Check only one
communication mechanism
is used.
PTC Signal
Loss

Check if MT terminal and
GND terminal are connected.
OPR
Disconnection

Check if the operator is
disconnected or removed.
FBLSS
PID Feedback
Signal Loss

Check if the proportion of
loss pressure (23-19) is set
correctly.

Make sure the feedback
sensor is installed correctly
and PID feedback signal
operates normally.
SC
Short Circuit

Check if the load is at correct
wiring.
PF
Protection Fault

Remove run command in
multi-function digital input
terminals.
TOL
External
Overload

Check external overload.

Reset external overload of
digital input.
4.3 Warning / Self-diagnosis
Detection Function
When the inverter detects a warning, the
keypad displays a warning code (flash).
Note:
The fault contact output does not
energize on a warning and the inverter
continues operation. When the warning is no
longer active the keypad will return to its
original state.
When the inverter detected a programming
error (for example two parameters contradict
each other of are set to an invalid setting),
the keypad displays a self-diagnostics code.
Note:
The fault contact output does not
energize on a self-diagnostics error. While a
self-diagnostics code is active the inverter
does not accept a run command until the
programming error is corrected.
Note:
When a warning or self- diagnostic
error is active the warning or error code will
flash on the keypad.
Refer to Table 4.2 for and overview, cause
and corrective action for inverter warnings
and self-diagnostic errors.
Table 4.2 warning / self-diagnosis and
corrective actions
LED display Possible solutions
OV
(flash)
Over voltage

Increase deceleration time

Reduce input voltage to
comply with the input
voltage requirements or
install an AC line reactor
to lower the input voltage.

Remove the power factor
correction capacitor.

Use dynamic braking unit.

Replace braking transistor
or resistor.

Adjust speed search
parameters.
UV
(flash)
under voltage

Check the input voltage.

Check input wiring.

Check power source

Replace magnetic
contactor

Replace control board or
complete inverter.
OH1
Heat sink
overheating

Check the ambient
temperature of the
inverter.

Check the fan or dust and
dirt in the heat sink.

Check the carrier
frequency setting.
OH2
(flash)
Inverter over
heating warning

Multi-function input
function set incorrectly.

Check wiring
OT
(flash)
over torque
detection

Check over torque
detection parameters (08-
15 / 08-16).

Check and reduce motor
load, check and operation
duty cycle.