WARNING/ALARM 11
Motor thermistor overtemp:
The thermistor or the thermistor connection is dis-
connected. You can choose if you want the ad-
justable frequency drive to give a warning or an
alarm when the counter reaches 100% in par.
1-90. Make sure that the thermistor is connected
correctly between terminal 53 or 54 (analog volt-
age input) and terminal 50 (+ 10 V supply), or
between terminal 18 or 19 (digital input PNP only)
and terminal 50. If aKTY sensoris 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
(in motor operation) or the torque is higher than
the value in par. 4-17 (in regenerative operation).
WARNING/ALARM 13
Overcurrent:
The inverter peak current limit (approx. 200% of
the rated current) is exceeded. The warning will
last approx. 8-12 sec., then the adjustable fre-
quency drive trips and issues an alarm. Turn off
the adjustable frequency drive and check if the
motor shaft can be turned and if the motor size
matches the adjustable frequency drive.
If extended mechanical brake control is selected,
the trip can be reset externally.
ALARM 14
Ground fault:
There is a discharge from the output phases to
ground, either in the cable between the adjustable
frequency drive and the motor or in the motor it-
self.
Turn off the adjustable frequency drive and re-
move the ground fault.
ALARM 15
Incomplete hardware:
A fitted option is not handled by the present con-
trol board (hardware or software).
ALARM 16
Short-circuit
There is a short-circuit in the motor or on the mo-
tor terminals.
Turn off the adjustable frequency drive and re-
move the short-circuit.
WARNING/ALARM 17
Control word timeout:
There is no communication to the adjustable fre-
quency drive.
The warning will only be active when par. 8-04 is
NOT set to
OFF
.
If par. 8-04 is set to
Stop
and
Trip
, a warning ap-
pears and the adjustable frequency drive ramps
down until it trips, while sounding an alarm.
par. 8-03
Control word Timeout Time
could pos-
sibly be increased.
WARNING 23
Internal fan fault:
The fan warning function is an extra protection
function that checks if the fan is running / moun-
ted. The fan warning can be disabled in
Fan Mon-
itor
, par. 14-53, (set to [0] Disabled).
WARNING 24
External fan fault:
The fan warning function is an extra protection
function that checks if the fan is running / moun-
ted. The fan warning can be disabled in
Fan Mon-
itor
, par. 14-53, (set to [0] Disabled).
WARNING 25
Brake resistor short-circuited:
The brake resistor is monitored during operation.
If it short-circuits, the brake function is discon-
nected and the warning appears. The adjustable
frequency drive still works, but without the brake
function. Turn off the adjustable frequency drive
and replace the brake resistor (see par. 2-15
Brake Check
).
ALARM/WARNING 26
Brake resistor power limit:
The power transmitted to the brake resistor is cal-
culated as a percentage, as a mean value over the
last 120 s, on the basis of the resistance value of
the brake resistor (par. 2-11) and the intermedi-
ate circuit voltage. The warning is active when the
dissipated braking energy is higher than 90%. If
Trip
[2] has been selected in par. 2-13, the ad-
justable frequency drive cuts out and issues this
alarm, when the dissipated braking energy is
higher than 100%.
VLT
®
AutomationDrive FC 300 Instruction Manual
Warnings and Alarms
MG.33.A8.22 - VLT
®
is a registered Danfoss trademark.
83