Vacon NX User Manual

9
vacon • 148 Fault tracing
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
14
Frequency
converter
overtemperature
3) Heatsink temperature is over 70 °C.
Overtemperature warning is issued when
the heatsink temperature exceeds 65 °C.
4) Circuit board temperature is over
85 ºC. Overtemperature warning is
issued when the board temperature
exceeds 75 ºC.
Subcodes:
S1 = Overtemperature warning in unit,
board or phases
S2 = Overtemperature in power board
S3 = Liquid flow
S4 = Overtemperature on ASIC board or
driver boards
Cause 1):
Check that values for Ith
(Chapter 4.2) are not
exceeded.
Check the correct coolant
flow and temperature. Also
check the circulation for
possible leaks.
Check the ambient
temperature.
Make sure that the switching
frequency is not too high in
relation to ambient
temperature and motor load.
Cause 2):
Circulation of air in the drive
is blocked.
The cooling fans are defect.
15 Motor stalled Motor stall protection has tripped. Check motor and load.
16
Motor
overtemperature
Motor overheating has been detected by
AC drive motor temperature model.
Motor is overloaded.
Decrease the motor load.
If no motor overload exists,
check the temperature
model parameters.
17 Motor underload Motor underload protection has tripped. Check load.
18
Unbalance
(Warning only)
Unbalance between power modules in
paralleled units.
Subcode in T.14:
S1 = Current unbalance
S2 = DC-Voltage unbalance
Should the fault re-occur,
contact your local distributor.
22
EEPROM
checksum fault
Subcodes:
S1 = Firmware interface power down
variable checksum error.
S2 = Firmware interface variable check
sum error.
S3 = System power down variable check
sum error
S4 = System parameter checksum error
S5 = Application-defined powerdown,
variable checksum error.
S6 = Application-defined powerdown,
variable checksum.
S10 = System parameter checksum error
(fault history entries, device valid,
system menu parameters).
Should the fault re-occur,
contact your local distributor.
24 Counter fault
Values displayed on counters are
incorrect.
Take a critical attitude
towards values shown on
counters.
Table 60. Fault codes
Fault
code
Fault Possible cause Correcting measures

Vacon NX Specifications

General

Product Type	AC Drive
Control Method	Scalar Control
Enclosure	IP00, IP21
Communication	Ethernet
Safety	STO (Safe Torque Off)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Ambient Temperature Range	-10°C to +50°C (with derating above +40°C)
Cooling Method	Air-cooled, Liquid-cooled