34
WARNING 1, 10 Volts low:
The 10 V voltage from terminal 50 on the control card is
below 10 V. Remove some of the load from terminal 50,
as the 10 V supply is overloaded. Max. 15 mA or
minimum 590 Ω.
WARNING/ALARM 2, Live zero error:
The signal on terminal 53 or 54 is less than 50% of the
value set in par. 6-10 Terminal 53 Low Voltage, par. 6-12
Terminal 53 Low Current, par. 6-20 Terminal 54 Low
Voltage, or par. 6-22 Terminal 54 Low Current
respectively.
WARNING/ALARM 3, No motor:
No motor has been connected to the output of the
frequency converter.
WARNING/ALARM 4, Mains phase loss:
A phase is missing on the supply side, or the mains
voltage imbalance is too high. This message also
appears in case of a fault in the input rectifier on the
frequency converter. Check the supply voltage and
supply currents to the frequency converter.
WARNING 5, DC link voltage high:
The intermediate circuit voltage (DC) is higher than the
overvoltage limit of the control system. The frequency
converter is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is below the
undervoltage limit of the control system. The frequency
converter is still active.
WARNING/ALARM 7, DC over voltage:
If the intermediate circuit voltage exceeds the limit, the
frequency converter trips after a time.
Possible corrections:
Connect a brake resistor
Extend the ramp time
Activate functions in par. 2-10 Brake Function
390/405 810/840 943/965
Overvoltage
410 855 975
The voltages stated are the intermediate circuit voltage of
the frequency converter with a tolerance of ± 5 %. The
corresponding mains voltage is the intermediate circuit
voltage (DC-link) divided by 1.35
WARNING/ALARM 8, DC under voltage:
If the intermediate circuit voltage (DC) drops below the
“voltage warning low” limit (see table above), the
frequency converter checks if 24 V backup supply is
connected.
If no 24 V backup supply is connected, the frequency
converter trips after a given time depending on the unit.
To check whether the supply voltage matches the
frequency converter, see General Specifications.
WARNING/ALARM 9, Inverter overloaded:
The frequency converter is about to cut out because of
an overload (too high current for too long). The counter
for electronic, thermal inverter protection gives a warning
at 98% and trips at 100%, while giving an alarm. You
cannot reset the frequency converter until the counter is
below 90%.
The fault is that the frequency converter is overloaded by
more than 100% for too long.
WARNING/ALARM 10, Motor ETR over
temperature:
According to the electronic thermal protection (ETR), the
motor is too hot. You can choose if you want the
frequency converter to give a warning or an alarm when
the counter reaches 100% in par. 1-90 Motor Thermal
Protection. The fault is that the motor is overloaded by
more than 100% for too long. Check that the motor par.
1-24 Motor Current is set correctly.
WARNING/ALARM 11, Motor thermistor over
temp:
The thermistor or the thermistor connection is
disconnected. You can choose if you want the frequency
converter to give a warning or an alarm when the counter
reaches 100% in par. 1-90 Motor Thermal Protection.
Check that the thermistor is connected correctly between
terminal 53 or 54 (analog voltage input) and terminal 50
(+ 10 V supply), or between terminal 18 or 19 (digital
input PNP only) and terminal 50. If aKTY sensor is used,
check for correct connection between terminal 54 and 55.
WARNING/ALARM 12, Torque limit:
The torque is higher than the value in par. 4-16 Torque
Limit Motor Mode (in motor operation) or the torque is
higher than the value in par. 4-17 Torque Limit Generator
Mode (in regenerative operation).
WARNING/ALARM 13, Over Current:
The inverter peak current limit (approx. 200% of the rated
current) is exceeded. The warning will last approx. 8-12
sec., then the frequency converter trips and issues an
alarm. Turn off the frequency converter and check if the
motor shaft can be turned and if the motor size matches
the frequency converter. If extended mechanical brake
control is selected, trip can be reset externally.
ALARM 14, Earth fault:
There is a discharge from the output phases to earth,
either in the cable between the frequency converter and
the motor or in the motor itself. Turn off the frequency
converter and remove the earth fault. ALARM 15,
Incomplete hardware: A fitted option is not handled by
the present control board (hardware or software).
ALARM 16, Short-circuit
There is short-circuiting in the motor or on the motor
terminals. Turn off the frequency converter and remove
the short-circuit.
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