38(80) Cabling and connections vacon
Vacon Oyj Telephone: +358-201-2121 Fax: +358-201-212 205
24-hour support: +358-40-8371 150 Email: vacon@vacon.com
6
6.2.3.1 Jumper selections on Vacon NXL basic board
The user is able to customise the functions of the frequency converter to better suit his needs by
selecting certain positions for the jumpers on the NXL board. The positions of the jumpers determine
the signal type of analogue input (terminal #2) and whether the termination resistor RS485 is used
or not.
On the MF2 board, there is one jumper block X4 containing ten pins and two jumpers. On the MF3
board there are two jumper blocks: X4 containing six pins and three jumpers and X7 containing
four pins and one jumper. The selectable positions of the jumpers are shown in the figure below.
See also Figure 6-18 on the next page.
Figure 6-16. Jumper selection for Vacon NXL, MF2 and MF3
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Jumper block X4 in
MF3:
Voltage input; 0...10V
Termination resistor RS 485 is in use
0...20mA; Current input
Voltage input; 0...10V
= Factory default
0...20mA; Current input
Termination resistor RS 485 is not used
Jumper block
X4 in MF2:
Jumper block X7 in
MF3:
Termination resistor RS 485 is in use
Termination resistor RS 485 is not used
Termination resistor
Termination resistor
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