Non-regenerative front end
vacon • 197
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
11
10
Input phase
External electronic monitoring relay have
detected undervoltage, phase
sequence or phase failure issue.
•
min. threshold value: 360Vac for
400-500Vac supply voltage
•
min. threshold value: 470Vac for
525-690Vac supply voltage
•
response delay is set to be 0.1 sec
Various causes:
-
Supply phase failure
-
Supply fuse failure
-
Incorrect Mains cabling
-
Grid interruption
Check EMD relay settings,
Signal wiring, supply volt-
age, fuses, supply cable,
rectifying bridge.
13
Undertemperature
Power module heatsink temperature is
under –10 °C.
Power module is in a too
cold
place or coolant agent is too
cold. Check the ambient &
coolant temperature. Check
the signal wiring.
14
Overtemperature
Fault:
Power module heatsink temperature is
over 60 °C.
Warning:
Power module heatsink temperature is
over 55 °C.
•
Check Coolant flow
and temperature
•
Check the ambient
temperature.
•
Check the cooling fan
condition
•
Check the power
module loading
•
Check the signal
wiring
32
Fan cooling
Jammed cooling fan
-
Cooling Fan failure
-
Cooling Fan is not rotating
•
Check the signal
wiring
•
Change the cooling
fans
51
Ext Fault
External fault digital input have triggered
the fault
•
Check the signal
wiring
•
Check External Fault
input
56
Choke Temp
Over temperature switch feedback or
Fault:
The temperature of the external input AC
choke is over 130 °C (measured from
PT100 thermistor).
Warning:
The temperature of the external input AC
choke is over 110 °C. (measured from
PT100 thermistor)
•
Check input AC choke
cooling conditions
•
Check the power
module loading
•
Check the signal
wiring
Table 96. Fault codes
Fault
code
Fault
Possible cause
Correcting measures
Содержание NX
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