3 encoder ooutput resolution configuration – CONTREX CXB2040 User Manual
Page 31
CXB1525 and CXB2040 MANUAL
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Resolution
PLD
CODE
PLD PART
NUMBER
S1-1
S1-2
BITS
MIN.
125
000
8000-1212
ON
ON
10
128
000
8000-1212
ON
OFF
10
250
000
8000-1212
OFF
ON
10
256
000
8000-1212
OFF
OFF
10
500
001
8000-1213
ON
ON
12
512
001
8000-1213
ON
OFF
12
1000
001
8000-1213
OFF
ON
12
1024
001
8000-1213
OFF
OFF
12
2000
010
8000-1214
ON
ON
14
2048
010
8000-1214
ON
OFF
14
4000
010
8000-1214
OFF
ON
14
4096
010
8000-1214
OFF
OFF
14
360
011
8000-1218
ON
ON
12
720
011
8000-1218
ON
OFF
12
2160
011
8000-1218
OFF
ON
14
3600
011
8000-1218
OFF
OFF
14
625
100
8000-1215
ON
ON
12
1250
101
8000-1216
ON
ON
14
2500
110
8000-1217
ON
ON
14
5.3.3 Encoder Output Resolution Configuration:
Refer to Appendix B drawing 8000-1430 and 8000-1431. There are nineteen standard resolutions.
Up to four resolutions are contained in a single PLD. To configure the pre-amp for a given resolution,
ensure that you have the correct PLD (U13) and then configure the dip-switches S1-1 and S1-2 as shown
below.
The BITS refer to the Resolver-to-Digital resolution which must be factory configured. Encoder
resolution may be changed at any time to a resolution which requires the same or fewer bits. Increasing
the bits increases the possible encoder resolution, but decreases the maximum motor RPM (refer to
Section 5.3.5).