TECO F510 series - Page 53

52
LED display Possible solutions
OL2
Inverter
overload
 Check V/f curve.
 Replace inverter with larger
rating.
 Check and reduce motor
load, check and operation
duty cycle.
OT
Over torque
detection
 Check over torque detection
parameters (08-15 / 08-16).
 Check and reduce motor
load, check and operation
duty cycle.
UT
Under torque
detection
 Check under torque
detection parameters (08-19
/ 08-20).
 Check load / application.
CE
communication
error
 Check connection
 Check host computer /
software.
FB
PID feedback
loss
 Check feedback wiring
 Replace feedback sensor.
STO
Safety switch
 Check F1 and F2
connection. (For standard H
& C type)
 Check SF1 / SF2 and SG
connection (For enhanced E
& G type)
 Check if 08-30 =0 and 03-
00~03-07=58
STO2
Safety switch
SS1
Safety switch
 Check digital terminal(58) is
turned on.
EF0
External fault 0
 Reset Modbus
communication 0x2501 bit
2= "1"
EF1
External fault
(S1)
 Multi-function input function
set incorrectly.
 Check wiring
EF2
External fault
(
S2
)
EF3
External fault
(S3)
EF4
External fault
(S4)
LED display Possible solutions
EF5
External fault
(S5)
EF6
External fault
(S6)
 Multi-function input function
set incorrectly.
 Check wiring
CF07
Motor control
fault
 Perform rotational or
stationary auto-tune
 Increase minimum output
frequency (01-08)
CF08
Motor control
fault
 Increase the value of 22-10
and 22-23 properly.
 Re auto-tune (22-21)
 Check if the load is too
heavy to raise torque output
limit.
LOPBT
Low flow fault
 Check feedback signal is
correct and with right
connection.
 Ensure that the feedback
value is higher than the limit
of minimum flow (23-51).
HIPBT
High flow fault
 Check feedback signal is
correct.
 Ensure that the feedback
value is lower than the limit
of maximum flow (23-48).
LPBFT
Low pressure
fault
 Check feedback signal is
correct and with connection.
 Check if feedback value of
pressure is lower than limit
of minimum pressure (23-
15).
OPBFT
High pressure
fault
 Check feedback signal is
correct.
 Check if feedback value of
pressure is lower than limit
of maximum pressure (23-
12).
LSCFT
Low suction
fault
 Check if water of effluent
channel is enough, and
water supply is regular.
 Check PID difference is
higher than its level or
current is lower than output
current level
CF00
Operator
Communication
Error
 Disconnect the operator and
then reconnect.
 Replace the control board