,2198-H015-ERS AB Unbuffered Encoder Outputs
Brand：Allen-Bradley Model number：2198-H015-ERS
Colour：new Warranty: 12 months
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2198-H015-ERS A-B Controller module Brand new
Incremental encoder counts are generated in the drive by counting the
(high to low and low to high) transitions of the incoming A and B
encoder signals. In Figure 2.49 the channel A signal has two
transitions, as does the channel B signal, which results in x4
interpolation (4 transitions/line equals 4 counts/line). So, for example,
typical 2000 line/rev encoder output becomes 8000 counts/rev in the
drive. Counts are not directly available at the encoder outputs, only
the A quad B representation.
Figure 2.49
Incremental Encoder Counts
The incremental buffered outputs available from the drive (CN1-16
through -21) are software selectable as follows:
• Buffered Outputs are a filtered representation of the original
incoming encoder (CN2) signals. Buffered outputs have the same
number of cycles/rev as found on CN2.
• Interpolated Outputs are the same as buffered outputs when
using an incremental encoder. The only interpolation performed
on an A quad B signal is the drive’s internal counting of transitions
(4 counts/line). Because counts are not available outside the drive,
selecting this in software is the same as selecting buffered (as
described above).
• Divided Outputs are the same as buffered outputs, except when
divided is selected in the software, the lines/rev are then reduced
by the value of the divisor chosen in the software (as shown in the
figure below).
2711P-T4W21D8S, 2711P-T4W22D8S, 2711P-T4W21D8S-B, 2711P-T4W22D8S-B, 2711P-T6C21D8S, 2711P-T6C22D8S, 2711P-T6C21D8S-B, 2711P-T6C22D8S-B, 2711P-T7C21D8S, 2711P-T7C22D8S, 2711P-T7C21D8S-B, 2711P-T7C22D8S-B, 2711P-T9W21D8S, 2711P-T9W22D8S, 2711P-T9W21D8S-B, 2711P-T9W22D8S-B, 2711P-T10C21D8S, 2711P-T10C22D8S, 2711P-T10C21D8S-B, 2711P-T10C22D8S-B, 2711P-T12W21D8S, 2711P-T12W22D8S, 2711P-T12W21D8S-B, 2711P-T12W22D8S-B, 2711P-T15C21D8S, 2711P-T15C22D8S, 2711P-T15C21D8S-B, 2711P-T15C22D8S-B
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