Service manual OEB/OES/OGB/OGS
5_00e Troubleshooting list_L 26/27 2013-01-30
Error code Possible cause Corrective action
Error message, display flashing
OHF
Frequency converter too
hot
Temperature of frequency converter too
high
Check motor load
Check ventilation of frequency converter
Check ambient temperature
Let the frequency converter cool down
before switching it back on
OLF
Motor overload
Motor current too high Check motor load
OPFI
One motor phase lost
One phase on the frequency converter
has dropped out
Check connections between frequency
converter and motor
OPF2
All motor phases lost
Motor not connected
Motor unstable
Check connections between frequency
converter and motor
OSF
Mains over-voltage
Mains voltage too high
Faulty power supply
Check mains voltage
PHF
Mains phase lost
Faulty supply for frequency
converter
Fuse has blown
A phase has dropped out
Unbalanced load
Check power supply to
frequency converter
Check fuse
SCFI
Motor short-circuit
Short-circuit or short-to-ground
at frequency converter output
Short-to-ground during operation
Commutation of motor while running
Large leakage current to ground at
frequency converter output
Check connecting cable
between frequency converter and motor
Check motor insulation
SCF3
Short-to-ground
SCF4
Short-circuit in IGBT
Short-circuit of internal power electronics
when switching on
Replace the frequency converter
SCFS
Short-circuit in dc-link
charging
Short-circuit at frequency
converter output
Short-circuit identified for move
command or DC brake command
Check connecting cable
between frequency converter and motor
Check motor insulation
SLF3
HMI communication
Communications error between
frequency converter and display
Replace the frequency converter
SOF
Excess speed
Instability Check motor
tnF
Motor measurement
Motor not connected to the
frequency converter
One motor phase lost
Check compatibility of motor and
frequency converter
tJF
IGBT too hot
Frequency converter
overheating
Internal IGBT temperature too high for
load and ambient temperature
Let the frequency converter cool down
before switching it back on
USF
Under-voltage
Mains voltage too low
Temporary mains failure
Check power supply to
frequency converter
Check mains voltage
If an error code is not listed in the table and it is not possible to reset the error using "ESC"
(see indications given by the display of the frequency converter (Altivar 12) when there is a fault but no
error message), please contact the manufacturer of the combi steamer or replace the frequency
converter.
To Next Page
Loading...
Need help?
General
