Electrical Overview - Danfoss VLT HVAC Basic Drive Programming Manual

Introduction

1.1.6 Electrical Overview

L1
L2
3 Phase
L3
power
input
50 (+10V OUT)
+10Vdc
0-10Vdc-
53 (A IN)
0/4-20 mA
54 (A IN)
0-10Vdc-
0/4-20 mA
55 (COM A IN/OUT)
42 0/4-20mA A OUT / DIG OUT
45 0/4-20mA A OUT / DIG OUT
12 (+24V OUT)
18 (DIGI IN)
19 (DIGI IN)
20 (COM D IN)
27 (DIGI IN)
29 (DIGI IN)
NOTE
Please note there is no access to UDC- and UDC+ on the
following units:
IP20 380-480V 30-90kW
VLT HVAC Basic Drive Programming Guide
PE
24V (NPN)
OV (PNP)
24V (NPN)
OV (PNP)
24V (NPN)
OV (PNP)
24V (NPN)
OV (PNP)
®
MG.18.B1.02 - VLT is a registered Danfoss trademark
U
V
W
PE
UDC-
UDC+
relay2
06
05
04
relay1
03
02
01
Bus ter.
ON=Terminated
OFF=Unterminated
Bus ter.
RS-485
(N PS-485) 69
Interface
(P RS-485) 68
(Com RS-485 ) 61
Motor
Not present on all power sizes
240Vac 2A
240Vac 2A
RS-485
Do not connect shield to
61 on 116,117 and 118 unites
(PNP)-Source
(NPN)-Sink
11
1 1