Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) - Manual (Page 334)

5-92
Component Definition and Maintenance
7000A-RM001A-EN-P – January 2011 7000 “A” Frame
Figure 5.69 – 20-pin Interface Module (IFM)
Quadrature Encoder Operation
The Universal Encoder Interface will accept either single or dual
quadrature encoders. Configuration of the board to accept the encoders is
done through jumpers on J4.
Boards shipped from the factory come defaulted to single quadrature
encoder configuration.
For dual encoder configurations, the primary encoder is wired to pins 1 to
7 on the 1492-IFM20 module. (See table below).
To select the dual encoder option, remove the CD_QUAD jumper and
place it in PARK. This will configure the board to accept two individual
quadrature encoders. In this mode, the drive can switch between encoders
for applications such as Synchronous Transfer between two motors with
each having their own encoder.
For redundant encoder option, remove both the CD_QUAD and
POL_QRDNT jumpers and place them in PARK. With this configuration,
the drive will switch over to the redundant encoder when it detects a
problem with the primary encoder.
Consult factory for availability of dual Quadrature Encoder options.
Tachometer Feedback
Board (cont.)