ALSPA PROFIBUS Field Bus Coupler Appendix A.Configuration Example
(09/06)
Technical Manual
Page A3
Example for transmitted/monitored data
Table A-2 Simple monitor parameter set-up.
Parameter
Value
Meaning
P75.31
9.01
PPO PZD2 – P9.01 Speed
feedback
P75.32
9.04
PPO PZD3 – P9.04 Torque
demand
P75.33
0
PPO PZD4 – not required
P75.34
0
PPO PZD5 – not required
P75.35
0
PPO PZD6 – not required
Speed Feedback and Torque Demand will be transmitted from the
drive onto the PROFIBUS link.
Received Data
This example also has a simple reference parameter, P5.17
minimum speed. P75.24 is configured below in Table A-3.
Note that the minimum speed parameter P5.17 and its units are in
rpm, not percentage. The drive is connected to a 1500 r/min motor.
To write to parameters within the drive, enter the parameter number
into the appropriate Receive parameter.
Table A-3 Simple reference parameter set-up.
Parameter
Value
Meaning
P75.24
5.17
PPO PZD3 - P5.17 minimum speed
This will allow the PROFIBUS link to write directly to the minimum
speed parameter.
A.6 Reference
Parameters
References are parameters within the drive that cannot be written to
directly, speed reference is one such example. In order to have
PROFIBUS data as the speed reference it is necessary to write the
PROFIBUS data to a PROFIBUS reference and then select this
reference to be the speed reference.
The first stage to setting up a reference parameter is to produce a
PROFIBUS reference. PROFIBUS references are held in P75.12 to
P75.21. Even numbers contain the reference, odd numbers contain
the fallback for the reference. In this example we will use
