Programming Guide | VLT® HVAC Drive FC 102
Electrical Diagrams
3
Wiring Diagram
3.1
91 (L1)
3-phase
92 (L2)
power
93 (L3)
input
3)
95
DC bus
88 (-)
89 (+)
50 (+10 V OUT)
+10 V DC
0/-10 V DC-
53 (A IN)
+10 V DC
0/4-20 mA
0/-10 V DC -
54 (A IN)
+10 V DC
0/4-20 mA
55 (COM A IN)
12 (+24 V OUT)
13 (+24 V OUT)
18 (D IN)
19 (D IN)
20 (COM D IN)
27
29
32 (D IN)
33 (D IN)
37 (D IN)
Figure 1: Wiring Diagram
A=Analog, D=Digital
1) Do not connect cable shield.
Terminal 37 is used for Safe Torque Off (STO). For STO installation instructions, refer to the VLT® Frequency Converters - Safe Torque Off
Operating Guide.
Long control cables and analog signals may in rare cases, depending on installation, result in 50/60 Hz ground loops due to noise from
mains supply cables. If 50/60 Hz ground loops occur, consider breaking the shield or insert a 100 nF capacitor between shield and
enclosure.
18
| © 2024.10
PE
Switch Mode
Power Supply
10 V DC
15 mA
+
-
A53
ON=0/4-20 mA
A54
OFF=0/-10 V DC -
+10 V DC
P 5-00
24 V (NPN)
0 V (PNP)
24 V (NPN)
0 V (PNP)
24 V (NPN)
(D IN/OUT)
0 V (PNP)
24 V
0 V
24 V (NPN)
(D IN/OUT)
0 V (PNP)
24 V
0 V
24 V (NPN)
0 V (PNP)
24 V (NPN)
0 V (PNP)
1)
24 V DC
200 mA
+
-
relay1
relay2
(COM A OUT) 39
(A OUT) 42
S801
ON=Terminated
OFF=Open
5V
S801
RS-485
(N RS-485) 69
Interface
(P RS-485) 68
(COM RS-485) 61
Electrical Diagrams
(U) 96
(V) 97
(W) 98
(PE) 99
Motor
Brake
(R+) 82
resistor
(R-) 81
03
240 V AC, 2 A
02
01
06
240 V AC, 2 A
05
400 V AC, 2 A
04
Analog Output
0/4-20 mA
0 V
RS-485
: Chassis
: Ground
2)
: PE
: Ground 1
: Ground 2
AU430028034214en-001901 / 130R0310
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