5
vacon • 64 Technical information
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Protection
Overvoltage protection
Undervoltage protection
NXI_5: 911 V
DC
; NXI_6: 1200 V
DC
NXI_5: 333 V
DC
; NXI_6: 460 V
DC
Earth fault protection
In case of an earth fault in the motor or motor cable,
only the inverter is protected
Output phase supervision Trips if any of the output phases is missing
Over current protection Yes
Unit over temperature
protection
Yes
Motor overload protection Yes
Motor stall protection Yes
Motor underload
protection
Yes
Short circuit protection of
+24 V and +10 V reference
voltages
Yes
Table 19. Technical specifications for size FR4-FR8 inverter units (INU)
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