1.2.2 Electrical Overview
24V
0V
24V
0V
L1
L2
L3
3 Phase
power
input
PE
PE
+10Vdc
0-10Vdc-
0-10Vdc-
50 (+10V OUT)
54 (A IN)
53 (A IN)
55 (COM A IN/OUT)
0/4-20 mA
0/4-20 mA
42 0/4-20mA A OUT / DIG OUT
45 0/4-20mA A OUT / DIG OUT
18 (DIGI IN)
19 (DIGI IN)
27 (DIGI IN/DIGI OUT)
29 (DIGI IN/
DIGI OUT)
12 (+24V OUT)
24V (NPN)
20 (COM D IN)
OV (PNP)
24V (NPN)
OV (PNP)
24V (NPN)
OV (PNP)
24V (NPN)
OV (PNP)
Bus ter.
Bus ter.
RS-485
Interface
RS-485
(N PS-485) 69
(P RS-485) 68
(Com RS-485 ) 61
(PNP)-Source
(NPN)-Sink
ON=Terminated
OFF=Unterminated
ON
1
2
240V AC 3A
Not present on all power sizes
Do not connect shield to
61 on 116,117 and 118 unites
01
02
03
relay1
relay2
UDC+
UDC-
Motor
U
V
W
130BB984.10
06
05
04
240V AC 3A
Illustration 1.4 Electrical Overview
NOTE
There is no access to UDC- and UDC+ on the following units:
IP20 380-480 V, 30-90 kW
VLT® HVAC Basic Drive Casca...
VLT
®
HVAC Basic Drive Cascade Controller
MI18I302 - VLT
®
is a registered Danfoss trademark
5
1
1
