Electrical Wiring - Danfoss VLT Refrigeration Drive FC 103 Programming Manual

Introduction
1 1

1.3 Electrical Wiring

3-phase
power
input
DC bus
+10 V DC
0-10 V DC
0/4–20 mA
0–10 V DC
0/4–20 mA
Illustration 1.2 Basic Wiring Schematic Drawing
A=Analog, D=Digital
Terminal 37 is used for Safe Torque Off. For Safe Torque Off installation instructions, refer to the VLT
Safe Torque Off Operating Instructions.
Very long control cables and analog signals may in rare cases, and depending on installation, result in 50/60 Hz ground
loops due to noise from mains supply cables.
If this occurs, it may be necessary to break the shield or insert a 100 nF capacitor between shield and enclosure.
Connect the digital and analog inputs and outputs separately to the common inputs (terminals 20, 55, and 39) of the
frequency converter to avoid ground currents from both groups to affect other groups. For example, switching on the
digital input may disturb the analog input signal.
10
®
VLT Refrigeration Drive FC 103
91 (L1)
92 (L2)
93 (L3)
95
PE
88 (-)
89 (+)
15 mA
50 (+10 V OUT)
+
S201
53 (A IN)
ON=0–20 mA
S202
OFF=0–10 V
54 (A IN)
55 (COM A IN)
12 (+24 V OUT)
13 (+24 V OUT)
P 5-00
18 (D IN)
19 (D IN)
20 (COM D IN)
27 (D IN/OUT)
24 V
0 V
29
(D IN/OUT)
24 V
0 V
32 (D IN)
33 (D IN)
*
37 (D IN)
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Switch mode
power supply
24 V DC
200 mA
- + -
24 V (NPN)
0 V (PNP)
24 V (NPN)
(COM A OUT) 39
0 V (PNP)
24 V (NPN)
S801
0 V (PNP)
ON=Terminated
OFF=Open
5 V
24 V (NPN)
0 V (PNP)
S801
RS485
(P RS485) 68
Interface
24 V (NPN)
(N RS485) 69
0 V (PNP)
24 V (NPN)
(COM RS485) 61
0 V (PNP)
(U) 96
(V) 97
(W) 98
(PE) 99
Motor
(R+) 82
Brake
resistor
(R-) 81
Relay1
03
240 V AC, 2 A
02
01
Relay2
06
240 V AC, 2 A
05
400 V AC, 2 A
04
Analog output
0/4–20 mA
(A OUT) 42
0V
RS485
(PNP) = Source
(NPN) = Sink
®
Frequency Converters -
MG16H202