Danfoss VLT PROFIBUS DP MCA 101 Manuale di installazione - Pagina 13
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Installation
3.7.4 Wiring Procedures
Wiring procedure for enclosure sizes A1–A3
1.
Mount the fieldbus connector on the fieldbus
option (terminals 62, 63, 66, and 67). For top
cable entry, mount the supplied EMC bracket on
top of the frequency converter with 2 screws.
2.
Prepare the fieldbus cable by stripping a section
of the cable insulation, so that the cable screen is
in contact with the EMC bracket. Keep the
unshielded wire as short as possible. For cable
specifications, refer to chapter 3.7.2 Cable Specifi-
cations. For fieldbus cable requirements, see
chapter 3.7.3 Bus Segment Requirements.
3.
Connect the fieldbus cable wires to the terminals
according to the colour code of the wires, see
Illustration 3.10.
4.
To establish mechanical fixation and electrical
contact between cable screen and ground,
position the stripped cable between the spring
loaded metal clamps.
2
1
1 Cable screen
2 EMC bracket (used for top cable entry only)
Illustration 3.9 Wiring for Enclosure Sizes A1–A3
MG33C602
Installation Guide
62
63
66 and 67 5 V DC supply, available for external termination
CS
Illustration 3.10 Fieldbus Cable Terminal Connections
Danfoss A/S © 07/2015 All rights reserved.
CS
62 63 66
67
RxD / TxD
P
+5 V
RxD / TxD
N
0 V
RxD/TxD-P red cable
RxD/TxD-N green cable
Control select, 5 V DC indicates transmission from the
fieldbus option
3
3
11