Danfoss VLT 2800 Manual page 146

WARNING/ALARM 34: HPFB communication fault
Communication fault only occurs in Fieldbus versions.
Regarding alarmtype, please see parameter 953 in
fieldbus literature.
ALARM 35: Inrush fault
This alarm occurs when the frequency converter has
been connected to the mains supply too many times
within 1 minute.
WARNING/ALARM 36: Overtemperature
If the temperature inside the power module rises
above 75 - 85 °C (depending on the device) the fre-
quency converter will emit a warning, and the motor
will continue to run unchanged. If the temperature con-
tinues to rise, the switch frequency is reduced auto-
matically. See Temperature-dependent switching
frequency.
If the temperature inside the power module rises
above 92 - 100 °C (depending on the unit) the fre-
quency converter will cut out. The temperature fault
cannot be reset until the temperature has dropped to
below 70 °C. The tolerance is ± 5 °C. The temperature
can be caused by the following:
- The ambient temperature too high.
Motor cable too long.
-
- Too high mains voltage.
ALARM 37-45: Internal fault
If one of these failures occurs, please contact Danfoss.
Alarm 37, internal fault number 0: Communication fault
between control card and BMC.
Alarm 38, internal fault number 1: Flash EEPROM fault
on control card.
Alarm 39, internal fault number 2: RAM fault on control
card.
Alarm 40, internal fault number 3: Calibration constant
in EEPROM.
Alarm 41, internal fault number 4: Data values in EE-
PROM.
Alarm/warning limits:
Without brake
VLT 2800 1 / 3 x 200 - 240 V
[VDC]
Undervoltage 215
Voltage warning low 230
Voltage warning high 385
Overvoltage 410
The voltages stated are the intermediate circuit volt-
age of the frequency converter with a tolerance of ± 5
146
Alarm 42, internal fault number 5: Fault in motor pa-
rameter database.
Alarm 43, internal fault number 6: General power card
fault.
Alarm 44, internal fault number 7: Minimum software
version of control card or BMC.
Alarm 45, internal fault number 8: I/O fault (digital in-
put/output, relay or analog input/output).
NB!
When restarting after an alarm 38-45, the
frequency converter will display an alarm
37. In parameter 615 the actual alarm
code can be read.
ALARM 50: AMT not possible
One of the following three possibilities can occur:
- The calculated R
ted limits.
The motor current in at least one of the motor
-
phases is too low.
- The motor in use is too small for AMT calcu-
lations to be performed.
ALARM 51: AMT Fault regarding nameplate data
There is inconsistency between the registered motor
data. Check the motor data for the relevant setup.
ALARM 52: AMT missing motor phase
The AMT function has detected a missing motor
phase.
ALARM 55: AMT timeout
Calculations are taking too long, possibly due to noise
on the motor cables.
ALARM 56: AMT warning during AMT
A frequency converter warning is given while AMT is
being performed.
WARNING 99: Locked
See parameter 18.
With brake Without brake
1 / 3 x 200 - 240 V 3 x 380 - 480 V
[VDC] [VDC]
215 410
230 440
400 765
410 820
%. The corresponding line voltage is the intermediate
circuit voltage divided by 1,35.
MG.27.E2.02 - VLT is a registered Danfoss trademark
value falls outside permit-
S
With brake
3 x 380 - 480 V
[VDC]
410
440
800
820