OPERATION MANUAL
RotoMidi
15
U-volt
Under voltage on
DC bus
The equipment’s input current is too low. The fault
code is displayed every time the equipment is
disconnected from the power supply. If the fault occurs
during use, make sure that the supply voltage is within
the established limits (200
-
240
V) and check the
components used for power supply.
0-t
Heatsink over
temperature
The frequency converter is too hot. Check that the unit
is not used at excessive temperatures; if necessary,
enhance cooling of the surrounding area.
U-t
Under temperature
The fault occurs if the equipment is below -10°C. For
the equipment to start, the ambient temperature must
be higher than -10°C.
P-dEF
Factory Default
parameters loaded
The frequency converter’s parameters have been
reset to factory settings. Contact your dealer. DO
NOT USE THE EQUIPMENT! OTHERWISE THE MOTOR
OR FREQUENCY CONVERTER MAY BE DESTROYED!
E-triP
External trip
A normally closed contact is open. If the motor is
provided with thermal protection, check that the motor
is not overheated.
SC-0bS
Optibus comms loss
Not in use.
FLt-dc
DC bus ripple too high
Check input current phases.
P-LOSS
Input phase loss trip
Check power supply phases.
h 0-1
Output over current
Check motor and connection cable connections for
short circuit. NOTE: The fault cannot be reset
immediately, since the frequency converter is
equipped with a guard timer. Wait for a while
and attempt resetting the frequency
converter
by depressing the “Reset” button.
th-Flt
Faulty thermistor on
heatsink
Contact your dealer.
dAtA-F
Internal memory fault
Push the Stop button. If the fault is not cleared,
contact your dealer.
4-20 F
4-20mA Signal lost
Check analogue input connections.
dAtA-E
Internal memory fault
Push the Stop button. If the fault is not cleared,
contact your dealer.
F-Ptc
Motor PTC thermistor
trip
Overheating of connected motor thermal
protection. Check cables and connections.
0-hEAT
Drive internal
temperature too high
The frequency converter is too hot. Check that the unit
is not used at excessive temperatures; if necessary,
enhance cooling of the surrounding area.
OuT-F
Output Fault
A motor phase may be lost. Check the motor and
cables.
V3 / 9.5.2022
