VLT
®
8000 AQUA
giving an alarm. The frequency converter cannot
be reset 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 overtemperature (MOTOR TIME)
According to the electronic thermal protection (ETR),
the motor is too hot. Parameter 117
Motor thermal
protection
allows a choice of whether the frequency
converter is to give a warning or an alarm when the
Motor thermal projection
reaches 100%. The fault is
that the motor is overloaded by more than 100% of the
preset, rated motor current for too long. Check that the
motor parameters 102-106 have been set correctly.
WARNING/ALARM 11
Motor thermistor (MOTOR THERMISTOR)
The thermistor or the thermistor connection has
been disconnected. Parameter 117
Motor thermal
protection
allows a choice of whether the frequency
converter is to give a warning or an alarm. Check
that the thermistor has been correctly connected
between terminal 53 or 54 (analog voltage input)
and terminal 50 (+ 10 V supply).
WARNING/ALARM 12
Current limit (CURRENT LIMIT)
The current is higher than the value in parameter
215
Current limit I
LIM
and the frequency converter
trips after the time set in parameter 412
Trip delay
overcurrent, I
LIM
has passed.
WARNING/ALARM 13
Overcurrent (OVER CURRENT)
The inverter peak current limit (approx. 200% of the
rated current) has been exceeded. The warning will last
approx. 1-2 seconds, following which the frequency
converter will trip and give off an alarm.
Turn off the frequency converter and check whether
the motor shaft can be turned and whether the motor
size matches the frequency converter.
ALARM 14
Ground fault (GROUND FAULT)(GROUND FAULT)
There is a discharge from the output phases to ground,
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
Switch mode fault (SWITCH MODE FAULT)
Fault in the switch mode power supply (internal
± 15 V supply).
Contact your Danfoss supplier.
ALARM 16
Short-circuiting (CURR. SHORT CIRCUIT)
There is short-circuiting on the motor terminals
or in the motor itself.
Cut off the mains supply to the frequency converter
and remove the short-circuit.
WARNING/ALARM 17
Serial communication timeout (STD
BUSTIMEOUT)
There is no serial communication with the frequency
converter. This warning will only be enabled if
parameter 556
Bus time interval function
has been
set to a value different from OFF.
If parameter 556
Bus time interval function
has been
set to Stop and trip [5], the frequency converter
will first give off an alarm, then ramp down and
finally trip while giving off an alarm. It is possible to
increase parameter 555
Bus time interval.
WARNING/ALARM 18
HPFB bus timeout (HPFB TIMEOUT)
There is no serial communication with the
communication option card of the frequency converter.
The warning will only be enabled if parameter 804
Bus
time interval function
has been set to anything but
OFF. If parameter 804
Bus time interval function
has
been set to
Stop and trip,
the frequency converter
will first give off an alarm, then ramp down and
finally trip while giving off an alarm.
Parameter 803
Bus time interval
could possibly
be increased.
WARNING 19
Fault in the EEprom on the power card
(EE ERROR POWER)
There is a fault on the power card EEPROM. The
frequency converter will continue to function, but
is likely to fail at the next power-up. Contact
your Danfoss supplier.
WARNING 20
Fault in the EEprom on the control card
(EE ERROR CONTROL)
There is a fault in the EEPROM on the control
card. The frequency converter will continue to
function, but is likely to fail at the next power-up.
Contact your Danfoss supplier.
MG.83.A2.02 - VLT is a registered Danfoss trademark
178