Electrical Wiring - Control Cables - Danfoss VLT FC 103 Programming Manual

Introduction
1 1

1.1.5 Electrical wiring - Control Cables

3 Phase
power
input
DC bus
+10Vdc
0-10Vdc
0/4-20 mA
0-10Vdc
0/4-20 mA
Illustration 1.2 Diagram showing all electrical terminals without options.
Terminal 37 is the input to be used for Safe Stop. For instructions on Safe Stop installation, refer to the section Safe Stop Installation in
the Design Guide.
Very long control cables and analogue signals may in rare
cases and depending on installation result in 50/60 Hz
earth loops due to noise from mains supply cables.
If this occurs, it may be necessary to break the screen or
insert a 100 nF capacitor between screen and chassis.
The digital and analogue inputs and outputs must be
connected separately to the common inputs (terminal 20,
55, 39) of the frequency converter to avoid ground
currents from both groups to affect other groups. For
8
®
VLT Refrigeration Drive Programming Guide
91 (L1)
92 (L2)
93 (L3)
95
PE
88 (-)
Power Supply
89 (+)
15mA
50 (+10 V OUT)
+
S201
53 (A IN)
ON=0-20mA
S202
OFF=0-10V
54 (A IN)
55 (COM A IN)
12 (+24V OUT)
13 (+24V OUT)
P 5-00
18 (D IN)
19 (D IN)
20 (COM D IN)
27
(D IN/OUT)
24V
0V
29 (D IN/OUT)
24V
0V
32 (D IN)
33 (D IN)
*
37 (D IN)
MG16H102 - VLT
Switch Mode
24Vdc
200mA
- + -
24V (NPN)
0V (PNP)
24V (NPN)
(COM A OUT) 39
0V (PNP)
24V (NPN)
S801
0V (PNP)
ON=Terminated
OFF=Open
5V
24V (NPN)
0V (PNP)
S801
RS-485
(P RS-485) 68
Interface
24V (NPN)
(N RS-485) 69
0V (PNP)
24V (NPN)
(COM RS-485) 61
0V (PNP)
example, switching on the digital input may disturb the
analog input signal.
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is a registered Danfoss trademark
(U) 96
(V) 97
(W) 98
(PE) 99
Motor
(R+) 82 Brake
resistor
(R-) 81
relay1
03
240Vac, 2A
02
01
relay2
06
240Vac, 2A
05
400Vac, 2A
04
Analog Output
0/4-20 mA
(A OUT) 42
0V
RS-485
(PNP) = Source
(NPN) = Sink