TECO L510S Series - Page 27

26
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.
Faults which can be recovered
manually but not automatically
Display Corrective action
OC
Consult with the supplier
OL1
Consider increasing the
Motor capacity
OL2
Consider increasing the
inverter capacity
CL
Check load condition and
running period time.
LV-C
1.Improve power quality
2.Consider adding a
reactor at the power
input side
OVSP
1.Check for excessive load
2.Check weather
frequency setting signal is
right or not
OH4
1.To improve the
ventilation condition
2.Adjust parameter 08-15
OPErr
1. Use “RESET” key of
inverter to remove the
error code
2. Set 09-02 to 0~3
4.1.2 Keypad Operation Error
Instruction
Display Corrective action
LOC
1.Adjust 13-06
2.Adjust 11-00
Err1
1.The ▲ or▼ is available
for modifying the
parameter only when
00-05/00-06=0
2.Modify the parameter in
STOP mode.