Danfoss VLT Decentral Drive FCD 302 Design Manual page 38

System Integration
3 phase
power
input
Mechanical
brake
+10Vdc
-10Vdc-
+10Vdc
0/4-20 mA
-10Vdc-
+10Vdc
0/4-20 mA
Illustration 3.14 Electrical Terminals without Options
A=analog, D=digital
Terminal 37 is used for Safe Stop.
Relay 2 has no function when the frequency converter has
mechanical brake output.
Very long control cables and analogue signals may in rare
cases 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. Connect the digital and analogue
inputs and outputs separately to the common inputs
(terminal 20, 55, 39) to avoid ground currents from both
groups affecting other groups. For example, switching on
the digital input may disturb the analog input signal.
®
VLT Decentral Drive FCD 302
91 (L1)
92 (L2)
93 (L3)
95 (PE)
Switch Mode
122(MBR+)
Power Supply
123(MBR-)
24Vdc
10Vdc
600mA
15mA
50 (+10 V OUT)
S201
53 (A IN)
ON/I=0-20mA
S202
OFF/U=0-10V
54 (A IN)
55 (COM A IN)
12 (+24 V OUT)
13 (+24 V OUT)
P 5-00
24V (NPN)
18 (D IN)
OV (PNP)
24V (NPN)
19 (D IN)
OV (PNP)
20 (COM D IN)
24V (NPN)
27 (D IN/OUT)
OV (PNP)
24V (NPN)
29 (D IN/OUT)
OV (PNP)
24V
OV
24V (NPN)
32 (D IN)
OV (PNP)
24V (NPN)
33 (D IN)
OV (PNP)
37 (D IN)
®
MG04H102 - VLT is a registered Danfoss trademark
(U) 96
(U) 97
(W) 98
(PE) 99
(R+) 82 Brake
resistor
(R-) 81
relay1
03
240Vac, 2A
02
01
relay2
06
240Vac, 2A
05
400Vac, 2A
04
(COM A OUT) 39 Analog Output
0/4-20 mA
(A OT) 42
0V
S801
ON=Terminated
OFF=Open
5V
GX
S801
RS-485
RS-485
(N RS-485) 69
Interface
(P RS-485) 68
(COM RS-485) 61
GX
(PNP) = Source
(NPN) = Sink
VCXA
67
GND1
62
Profibus
interface
63
66
GND1
Motor
RS485
37
3 3