Specifications

4.3
Wiring units and devices
4
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4.3.2 Setting the rotary switches on the inverters and servo units
Each of the inverters and servo units has a rotary switch to specify a PROFIBUS-DP slot
allocated to it. Set the rotary switch as follows:
• Each axis must have its rotary switch set to a unique number in sequence starting with 0.
• 2-axis servo units have only one rotary switch but use two values because each axis
needs a unique value. Thus, if a 2-axis servo unit has its rotary switch set to 2, the val-
ues 2 and 3 are actually used by those two axes, and the next unit must have its rotary
switch set to 4. A 2-axis servo unit should have its rotary switch set to an even number
(0, 2, 4, ...).
• The units connected to one converter may have their rotary switch set to a unique num-
ber between 0 and 6. The sequence in position of the units need not correspond to the
sequence of the set values of their rotary switches.
If a unit has its rotary switch wrongly set, the corresponding LED above the PROFIBUS connector on
the converter would go red (normally green).
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