vacon • 22 Filter types
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
The S- type dU/dt filters are forced air cooled and require a 220 V AC power supply for their fans.
The filter has a build-in thermal switch, which indicates if the filter temperature has exceeded the
safe limits. This NC contact can be wired to the External fault input of the drive - see the wiring
schematic in Figure 10.
Check the input parameterization from the relevant drive application manual. If the external fault
input is used for other purposes, you can also connect the fault contact in series with the RUN or
the RUN ENABLE command - for their terminal assignment see the relevant application manual.
Figure 10. Wiring schematic of the S-type dU/dt filter external fan supply and thermal supervision NC
connection
3~
L
3
4
WVU
U1
U1
V1
V1
W2
W2
PE
PE
PE
L1L2 L3
L1L2 L3
x10
N
L
EXTERNAL FAULT
EXTERNAL FAN
SUPPLY 230VAC
N
1 2
-A1
-L2
PE
-X2
-A16
-A11
NXOPTA1
Basic I/O
SLOT A
X1
A B C D
A B C D
+10V
ref
AI1+
AI1-
AI2+
AI2-
+24V
GND
DIN1
DIN2
DIN3
CMA
+24v
GND
DIN4
DIN5
DIN6
CMB
AOA1+
AOA1-
DOA1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
PE
-A2
7127_uk
X2
X2
A
B
X3
A B C D
X4
MAIN CIRCUIT CONTROL UNIT
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