Toshiba VF-nC1 - Manual (Page 133)

E6581090
M-5
13
(Continued)
Error
code Problem Possible causes Remedies
UVQR Momentary power
failure slowdown
stop prohibition
function activated • The slowdown stop prohibition
function set with H
(momentary power failure ride-
through operation) is activated.
• To restart operation, reset the
inverter or input an operation
signal again.
Parameters in the
process of
initialization • Parameters are being initialized
to default values.
• Normal if the message
disappears after a while
(several seconds to several
tens of seconds).
KPKV
Setup parameters in
the process of being
set • Setup parameters are in the
process of being set.
• Normal if the message
disappears after a while
(several seconds to several
tens of seconds). (European
model only)
G Operation panel key
fault • The RUN or STOP key is held
down for more than 5 seconds.
• The RUN or STOP key is faulty.
• Check the operation panel.
GUQ Source logic
switching
confirmation alarm • The input terminal is switched
to source logic mode.
• Check whether cables are
connected correctly, and then
specify a proper logic.
• Check whether cables are
connected correctly, and then
reset the inverter or turn it off
temporarily and turn it back on.
Logics will be switched.
GUK Source logic
switching
confirmation alarm • The input terminal is switched
to source logic mode.
• Check whether cables are
connected correctly, and then
specify a proper logic.
• Check whether cables are
connected correctly, and then
reset the inverter or turn it off
temporarily and turn it back on.
Logics will be switched.
(Note) When the ON/OFF function is selected for DC braking (DB), using the input terminal
selection parameter, you can judge the inverter to be normal if " FD" disappears when
opening the circuit between the terminal and CC.
[Alarms displayed during operation]
E
R
N
J Overcurrent alarm
Overvoltage alarm
Overload alarm
Overheat alarm Same as QE (overcurrent)
Same as QR (overvoltage)
Same as QN/QN (overload)
Same as QJ (overheat)
If two or more problems arise simultaneously, one of the following alarms appears and blinks.
ER
, RN, ERN
The blinking alarms E, R, N, J are displayed in this order from left to right.