Electrical Installation, Control Cables - Danfoss VLT FC 102 Series Design Manual

Electrical Installation

6.5.7 Electrical Installation, Control Cables

6 6
Figure 6.55 Basic Wiring Schematic
A=Analog, D=Digital
*Terminal 37 (optional) is used for Safe Torque Off. For Safe Torque Off installation instructions, refer to the Safe Torque Off
Instruction Manual for Danfoss VLT
**Do not connect cable shield.
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 line power supply cables. If this occurs, it may be necessary to break the shield or insert a 100 nF
capacitor between shield and chassis. The digital and analog inputs and outputs must be connected separately to the
common inputs (terminal 20, 55, 39) of the adjustable frequency drive to avoid ground currents from both groups affecting
other groups. For example, switching on the digital input may disturb the analog input signal.
124
3-phase
91 (L1)
power
92 (L2)
input
93 (L3)
95
PE
DC bus 88 (-)
89 (+)
50 (+10 V OUT)
+10 V DC
S201
0/-10 V DC-
53 (A IN)
+10 V DC
0/4–20 mA
S202
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)
(COM D IN)
20
(D IN/OUT)
27
(D IN/OUT)
29
32 (D IN)
33 (D IN)
*
37 (D IN)
®
Adjustable Frequency Drives.
Danfoss A/S © Rev. 06/2014 All rights reserved.
Design Guide
Switch Mode
Power Supply
10 V DC 24 V DC
15 mA 130/200 mA
+ - + -
ON=0/4–20 mA
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)
0 V (PNP)
S801
24 V
0 V
24 V (NPN)
0 V (PNP)
24 V
0 V
RS-485
Interface
24 V (NPN)
0 V (PNP)
24 V (NPN)
0 V (PNP)
(U) 96
(V) 97
(W) 98
(PE) 99
Brake
(R+) 82
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
(COM A OUT) 39
0/4–20 mA
(A OUT) 42
ON=Terminated
OFF=Open
5 V
S801 0 V
(N RS-485) 69
(P RS-485) 68
**
(COM RS-485) 61
Motor
RS-485
: Chassis
: Ground
MG11BC22