Danfoss VLT PROFIBUS DP MCA 101 Installation Guide

130BD878.10
ON
1 2
SW. ver. XX.XX
MS
NS
ON
OFF
Code No. 130B1100
Termination
SN
SW
Address
ON
OFF
S600
S300
LD202 LD200
LD201 LD203
ON ON
8 7 6 5 4 3 2 1
PROFIBUS Option A
1
2
1 Termination switch
2 Address switches
Illustration 3.7 Location and Sequence of the Address Switches
3.7 Electrical Installation
3.7.1 Cabling Requirements
•
Terminate the nodes at the physical ends of each
segment. If the bus segment is branched, the
device furthest from the segment connector
represents the end of the segment.
•
Terminals 66 and 67 provide a 5 V DC supply,
available for external termination.
NOTICE
The PROFIBUS D-sub 9 adapter also features a
termination switch. When the D-sub 9 adapter is used,
set the termination switch on the eldbus option to OFF,
to avoid double termination.
NOTICE
When the eldbus is extended with a repeater, terminate
the extension at both ends.
NOTICE
To avoid impedance mismatch, use the same cable type
throughout the entire network. Refer to
chapter 3.7.2 Cable Specications for cable specications.
3.7.2 Cable Specications
Impedance at a measuring
frequency from 3–20 MHz
135–165 Ω
Resistance
<110 Ω/km
Capacitance <30 pF/m
Damping (total wire length) Maximum 9 dB over the whole
wire length
Cross-section
Maximum 0.34 mm
2
, AWG 22
Cable type Twisted in pairs, 1 x 2, 2 x 2, or
1 x 4 wires
Screening Copper-braided screen, or braided
screen and foil screen
Table 3.2 Cable Specications
Installation Installation Guide
MG33C602 Danfoss A/S © 07/2015 All rights reserved. 9
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Danfoss VLT PROFIBUS DP MCA 101 Specifications

General

Brand	Danfoss
Model	VLT PROFIBUS DP MCA 101
Category	Media Converter
Language	English