1.1.8 Electrical Overview
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)
29 (DIGI IN)
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
240Vac 2A
Not present on all power sizes
Do not connect shield to
61 on 116, 117 and 118 units
01
02
03
relay1
relay2
UDC+
UDC-
Motor
U
V
W
130BB626.10
06
05
04
240Vac 2A
Figure 1.2
NOTE!
Please note there is no access to UDC- and UDC+ on the following units:
IP20 380–480 V 40–125 hp [30–90 kW]
IP20 200–240 V 20–60 hp [15–45 kW]
IP20 525–600 V 3–125 hp [2.2–90 kW]
IP54 380–480 V 30–125 hp [22–90 kW]
Introduction
VLT
®
HVAC Basic Drive Programming Guide
MG18B222 - VLT
®
is a registered Danfoss trademark
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1
1