Installation
4-14 821XKlimaBA0399
4.2.3.3 Connection diagrams
62
78
9
K11 K12
K14
3k
3k3k
3k3k
Vcc
GND 2
K1
GND 1
5,2V
Vref
3k3
>100k
82XX
R
≥
1k
20
28
E1
E2
E3 E4
39
PE
K35.0077-3
FIG 4-7 Control connections: Supply with internal control voltage
62 7
8
9
K11 K12 K14
3k
3k3k3k
3k
Vcc
GND 2
GND 1
5,2V
Vref
3k3
>100k
12...30V
82XX
R
≥
1k
+
-
20 28 E1 E2 E3 E4 39
PE
K1
K35.0077-4
FIG 4-8 Control connections: External voltage supply (+12 V ... +30 V)
GND1 Reference for internal voltages
GND2 Reference for external voltages
GND1 and GND2 have a potential isolation inside the unit.
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