3.6 Setting Address Switches
NOTICE
Switch off the power supply before changing the address
switches. The address change comes into effect at the
next power-up.
The address switches enable setting of baudrate and node
ID:
•
Switches 8 and 7 arefor setting the baudrate for
either: 125, 250, or 500 Kbps.
•
Switches 6–1 are for setting the node address in
the range 1–62.
Switch
Baudrate
8
7
On
On
Parameter 10-01 Bau
d Rate Select
On
Off
500 kbps
On
On
250 kbps
On
Off
125 kbps
Table 3.1 Switches 8 and 7
Switch
Node ID
6
5
4
3
2
1
On
On
On
On
On
On
Parameter
10-02 MAC
ID
On
On
On
On
On
Off
62
Off
Off
Off
Off
Off
On
1
Table 3.2 Switches 6–1
When both switch 8 and 7are set to
ON
, select baudrates
via
parameter 10-01 Baud Rate Select
: 10, 20, 50, 100, 125,
250, or 500 kbps.
When switches 6–1 are set to
ON
, select node ID via
parameter 10-02 MAC ID
in the range: 1–127
3.7 Electrical Installation
3.7.1 Cable Specifications
Baudrate
[kbps]
Maximum
cable
length [m]
Resistance
[m
Ω
/m]
Cable cross-
section
[mm
2
]
Termination
resistor [
Ω
]
500
100
<60
0.34–0.6
120
250
250
<40
0.5–0.6
125
500
50
1000
<26
0.75–0.8
20
2500
10
5000
Table 3.3 Cable Specifications
3.7.2 Wiring Procedures
Wiring procedure for enclosure sizes A1–A3
1.
Mount the fieldbus connector on the fieldbus
option (CAN_L, Drain, CAN_H). 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
contacts the EMC bracket. Keep the unshielded
wire as short as possible. For cable specifications,
refer to
chapter 3.7.1 Cable Specifications
.
3.
Connect the fieldbus cable wires to the terminals
according to the colour code of the wires, see
Illustration 3.6
.
4.
To establish mechanical fixation and electrical
contact between cable screen and ground,
position the stripped cable between the spring
loaded metal clamps.
130BD877.10
1
2
1 Cable screen
2 EMC bracket (used for top cable entry only)
Illustration 3.5 Wiring for Enclosure Sizes A1–A3
Installation
VLT
®
CANopen MCA 105
8
Danfoss A/S © 05/2015 All rights reserved.
MG33J402
3
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