Installation; Connecting The Bus Line; Mechanical Installation - Danfoss MCA 194 Operating Instructions Manual

Installation

3 Installation

3.1 Connecting the Bus Line

3 3
Terminate the bus line at both ends of each segment. A
mismatch of impedance may result in reflections on the
line resulting in corrupt data transmission.
The DeviceNet Option Card contains a suitable termination.
To activate the termination, turn on Switch 1 on the
DeviceNet converter option. By default, the switch is
turned off.
NOTICE
Notice that pin numbers are colour-coded on the
DeviceNet connector.
Unlike the VLT
are colour-coded to avoid swapping the bus wires.
+24V
CAN_H
Illustration 3.1 Connecting Wires to VLT DeviceNet Converter
MCA 194
8
®
5000, the FC 302 DeviceNet connectors
5 4 3 2
Drain
Danfoss A/S © Rev. 2014-03-06 All rights reserved.
Operating Instructions
Pin no.
1
2
3
4
5
Table 3.1 Correct Colour-Coding

3.2 Mechanical Installation

3.2.1 Mount the Option
Illustration 3.2 Installing Fieldbus Option
1
GND
CAN_L
Terminal Colour Name
V- Black GND
CAN_L Blue CAN LOW
Drain (bare) Screen
CAN_H White CAN HIGH
V+ Red +24 V
MG37E102