AMCI SMD23-240 Manuel de l'utilisateur - Page 9
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ADV ANC ED
MIC RO CON T RO L S INC.
Wiring the SMD Control Signals to a Single-Ended Input
The SMD is built with differential inputs for optimal noise immunity. However many stepper
control circuits use single-ended (sinking or sourcing) control signals. The following schematics
show the correct wiring when using the SMD with single-ended control signals.
O p e n C o l l e c t o r S o u r c i n g O u t p u t
S M D
I n p u t
O p e n C o l l e c t o r S i n k i n g O u t p u t
S M D
I n p u t
Disable Input Wiring
The Disable input circuit is the same as step and direction inputs. Electrical connections,
instructions, and comments are the same, except that the input resistor value is 1K.
The Disable Input on the SMD will shut off motor current when active. The circuitry of the
Disable Input is identical to the Step and Direction Inputs.
The SMD does not accept directional pulses while the Disable Input is active.
20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786
Tel: (860) 585-1254
Fax: (860) 584-1973
+ S T E P
O R
+ D I R E C T I O N
S T E P
O R
D I R E C T I O N
S h i e l d e d , T w i s t e d
P a i r C a b l e
+ S T E P
O R
+ D I R E C T I O N
S T E P
O R
D I R E C T I O N
S h i e l d e d , T w i s t e d
P a i r C a b l e
Note: SMD input resistor value – 316 ohm
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SMD-23 Integrated Stepper Drive & Motor
V
D C
+ 5 t o + 2 4 V
I n d e x e r
R
O u t p u t
L I M
V
D C
+ 5 t o + 2 4 V
R
L I M
I n d e x e r
O u t p u t
V
R
D C
L I M I T
5 V o l t s
N o n e
1 2 V o l t s
2 . 0 K
9
1 5 V o l t s
2 . 0 K
9
2 4 V o l t s
3 . 9 K
9
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