Baldor DSM S Series Installation Manual page 23

NextMove ESB
(models NSB003-501 / NSB003-502 only)
+5 V
Step
Output
74AHCT244
GND
Direction
Output
74AHCT244
GND
Enable
Figure 11 - Sourcing input connections from a typical controller
Note: * The 1kΩ pull up resistors are optional, but can help prevent noise affecting the
DSM's inputs.
MN1940
+5 V
ULN2003
STEP0
ULN2003
DIR0
DGND
+5 V
REL COM
REL NC
(e.g. NextMove ESB models NSB003-501/502)
DSM
'X2'
Optocoupler
reference
4
1k*
Step clock
input
3
1k*
Direction
input
5
1
'X12'
7
Enable input
8
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Input / Output 4-7