TECO F510 series - Page 51

50
LED display Possible solutions
UT
(flash)
under torque
detection
 Check under torque
detection parameters (08-
19 / 08-20).
 Check load / application.
bb1
(flash)
External
baseblock
 Multi-function input
function set incorrectly.
 Check wiring
bb2
(flash)
External
baseblock
bb3
(flash)
External
baseblock
bb4
(flash)
External
baseblock
bb5
(flash)
External
baseblock
bb6
(flash)
External
baseblock
OL1
Motor overload
 Check V/f curve.
 Check motor rated current
 Check and reduce motor
load, check and operation
duty cycle.
 Check V/f curve.
 Replace inverter with
larger rating.
 Check and reduce motor
load, check and operation
dut
y
c
y
cle
OL2
Inverter
overload
CE
(flash)
communication
 Check connection
 Check host computer /
software.
LED display Possible solutions
error
CLB
over current
protection
level B
 Check load and duty cycle
operation.
Retry
(flash)
retry
 It will disappear after the
period of automatic reset.
EF1
( flash )
External fault
(S1)
 Multi-function input
function set incorrectly.
 Check wiring

EF2
(flash)
External fault
(S2)
EF3
(flash)
External fault
(S3)
EF4
(flash)
External fault
(S4)
EF5
(flash)
External fault
(S5)
EF6
(flash)
External fault
(S6)
EF9
(flash)
error of
forward/reversal
rotation
 Check run command
wiring