TECO A510-2001-H - Page 278

5-4
LED
display
Description Possible causes Corrective action
EF1
External fault
(S1)
External fault ( Terminal S1)
EF2
External fault
(S2)
External fault ( Terminal S2)
EF3
External fault
(S3)
External fault ( Terminal S3)
EF4
External fault
(S4)
External fault ( Terminal S4)
EF5
External fault
(S5)
External fault ( Terminal S5)
EF6
External fault
(S6)
External fault ( Terminal S6)
EF7
External fault
(S7)
External fault ( Terminal S7)
EF8
External fault
(S8)
External fault ( Terminal S8)
External fault input is received by
multifunction digital input
terminals.
Subject to 03-00 to 03-07(= 25),
Inverter external fault selection
08-24= 0 or 1, Significant fault.
. Check the faults of external
causes.
. Reset the external fault of multi
function digital input.
CF07
Motor control
fault
Motor control fault In SLV mode, running fault.
. Perform rotational auto-tuning
. If rotational auto-tuning can’t be
performed, please perform the
static auto-tuning, or increase the
set value of 01-08.
FU
fuse open
DC fuse : open circuit
DC
fuse (Models 230V
50HP or above, 460V 75HP or
above) open circuit .
.The power transistor is damaged
due to the short circuit at the
inverter output side.
.Check there are short circuit or
not between the terminal ○
-
and
U/T1, V/T2, W/T3.
.Check there is short circuit or not
between the motor and the wire or
the insulation is damaged.
. Repair / replace the inverter.