Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011 133
Detailed Drive Operation Chapter 1
Motor Simulator
The simulator mode allows the drive to be operated without a motor connected
and is meant for demo purposes only. If a motor is connected with this mode
selected, very erratic and unpredictable operation will occur.
Parameter 228 [MtrSpd Simulated] contains the simulated speed feedback.
Parameter 229 [MtrPosit Simulat] contains the simulated position feedback. It is
calculated based on the simulated speed feedback and the value in parameter 225
[Virtual Edge/Rev]. [Virtual Edge/Rev] is a user-defined value for the number of
pulses per motor revolution.
Feedback Option Cards
There are three different feedback option cards that can be installed on the
PowerFlex 700S Phase II drive:
1. The Stegmann Hi-Resolution Encoder feedback option card
2. The Resolver feedback option card
3. The Multi-Device Interface (MDI) option card. The MDI option card has
an input for a Stegmann Hi-Resolution Encoder and an input for a linear
feedback device.
Only one of the option cards above can be physically installed on the drive at a
time. When the Stegmann Hi-Resolution encoder option or Resolver option is
installed, the data is processed by feedback option card port 0. When the MDI
option card is installed, it has a Stegmann Hi-Resolution encoder processed by
feedback option card port 0 and a linear sensor processed by feedback option card
port 1. Note that feedback option port 1 is used for position feedback only and
cannot
be used for motor feedback.
Parameter 250 [FB Opt0 Posit] contains the position feedback from either the
Stegmann Hi-Resolution encoder or the resolver connected at port 0.
Parameter 251 [FB Opt0 Spd Fdbk] contains the speed feedback from either the
Stegmann Hi-Resolution encoder or the resolver connected at port 0.
Parameter 252 [FB Opt1 Posit] contains the position feedback from the linear
sensor when the MDI option card is installed.
228
229
Motor
Simulator
Spd Calc
MtrSpd Simulated
To Feedbac
Selection
MtrPosit Simulat
225
Virtual Edge/Rev
Accum
1
1-Z
-1
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