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Input/ Output 4-7MN1940
NextMoveESB
(modelsNSB003-501 / NSB003-502 only)
STEP0
ULN2003
Step
Output
74AHCT244
GND
3
DSM
Optocoupler
reference
Stepclock
input
+5V 4
+5V
DIR0
ULN2003
Direction
Output
74AHCT244
GND
5
Direction
input
RELNC
7
Enableinput
‘X2’
‘X12’
+5V
RELCOM
1
DGND
8
Enable
1k*
1k*

Figure11 - Sourcing input connections from a typical controller

(e.g.N extMove ESB models NSB003-501/502)

Note: *The 1kpull up res istors are optional, but can help prevent noise affecting the

DSM’s inputs.