SPECIFICATION
5
Pin
Name
I/
O
Min. on
State
Curren
t
Max.
Current
Nominal
Voltage
Signal Levels
Comments
1
14
STEP+
STEP-
I
10mA
21mA
5V
TTL
note 1, 2, 4
2
15
DI
DIRECTION-
I
10mA
21mA
5V
TTL
note 1, 2
6
Slow Adjust
I
-
20mA
12V
-
-
7
Fast Adjust
I
-
20mA
12V
-
-
9
21
Fault+
Fault-
O
-
5mA
(at 1.0V)
24V
Unassigned
transistor 26V
max.
Active Low
under fault
condition
note 3
12
Slow Run
I
-
1.5mA
12V
Low <0.8V
High = O/C
Active low
13
Fast Run
I
-
1.5mA
4.3V
Low <0.8V
High = O/C
Active low
16
17
S
Shutdown-
I
10mA
21mA
5V
TTL
note 2
19
Adjust
Common
O
-
20mA
12V
-
-
20
Internal clock
out
O
-
15mA
24V
Open collector
Low <250mV
@ I
c
10mA
Active low
25
GND
I/
O
-
-
-
-
Signal return
Table 2. Control I/O Signal Specification
note 1
Do not change state of ‘DI’ and ‘DIRECTION-’ inputs within 2.5
µ
s of
STEP transition to STEP+ high, STEP- low.
note 2
See Figure 9 for input circuit.
note 3
See Figure 7 for output circuit.
note 4
Mininum pulse width 1
µ
s, maximum frequency 200kHz.
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