3 Display, operation and options
BU 0200 en-US-4920
89
Information
Diagnostic caps’ tightening torques
The tightening torque for the transparent diagnostic caps (inspection glasses) is 2.5 Nm.
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3.1.2 Connection of multiple devices to one parameterization tool
Basically, it is possible to access several variable frequency drives via the
Parameter Box
or the
NORDCON software
. In the following example, communication is made via the parameterization tool
by tunneling the protocols of the individual devices (max. 4) via the common system bus (CAN). The
following points must be noted:
1 Physical bus structure:
Establish CAN connection (system bus) between the devices
2 Parameterization
Parameter
Settings on the VFD
No.
Designation
VFD1
VFD2
VFD3
VFD4
P503
Master function output
2 (system bus active)
P512
USS address
0
0
0
0
P513
Telegram time-out (s)
0.6
0.6
0.6
0.6
P514
CAN baud rate
5 (250 kBaud)
P515
CAN address
32
34
36
38
3 Parameterization tool is usually connected to the
first
variable frequency drive via RS485 (e.g. via
RJ12).
Conditions/restrictions:
Basically, all of the currently available variable frequency drives from NORD can communicate via a
common system bus. When devices in the SK 5xxE model series are incorporated, the framework
conditions described in the manual for the device series concerned must be noted.
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