TECO L510S Series - 3.4 Specifications

25
Chapter 4
Troubleshooting and
maintenance
4.1 Error display and corrective
action
4.1.1 Manual Reset and Auto-Reset
Faults which cannot be recovered
manually
Display Corrective action
-OV-
Consult with the supplier
-LV-
1.Check if the power
voltage is correct
2. failed resistor or fuse
3. Consult with the supplier
-OH-
Improve the ventilation
conditions, if no result then
replace the inverter
OH-C
1. Reduce carrier
frequency
2. Improve the ventilation
conditions, if no result
then replace the inverter
CtEr
Consult with the supplier
HPErr
Check the inverter
capacity setting (13-00) to
meet the hardware voltage
levels.
Err4
1.Remove the interference
source then restart by
switching power OFF/ON
2 If not resolved then
Consult with the supplier
EPr
Consult with the supplier
COt
Check the wiring
Faults which can be recovered
manually and automatically
Display Corrective action
OC-A
1.Set a longer acceleration
time
2.Replace inverter with
one that has the same
rating as that of the motor
3.Check the motor
4.Check the wiring
5.Consult with the supplier
OC-C
1.Increase the capacity of
the inverter
2.Install inductor on the
power supply input side
OC-d
Set a longer deceleration
time
OC-S
1.Inspect the motor
2.Inspect the wiring
3.Consult with the supplier
OV-C
1.Set a longer deceleration
time
2.Consider use of a brake
resistor and/or brake
module (For 400V
models or 200V
5hp~15hp models)
3.Consider use of a
reactor at the power
input side
PF
1.Check the main circuit
power supply wiring.
2.Check the power supply
voltage
LPBFT
1.Check feedback signal is
correct and with connection.
2.Check if feedback value
of pressure is lower than
limit of minimum pressure
(14-15).
OPBFT
1.Check feedback signal is
correct.
2.Check if feedback value
of pressure is lower than
limit of maximum pressure
(14-12).
FBLSS
1.Check if the proportion of
loss pressure (23-19) is
set correctly.
2.Make sure the feedback
sensor is installed
correctly and PID
feedback signal operates
normally.