Rockwell-automation 1746-HSRV SLC Servo Control Module User Manual Manuel d'utilisateur Page 28

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Vue de la page 27
Publication 1746-6.1.2 - July 2000
Selecting Power Supplies, Encoders, and Drives
2-5
24V DC I/O devices for compatibility with the electrical specifications
as shown in the table below.
Selecting an Encoder
The SLC Servo Module system supports Allen-Bradley 845H encoders.
Other encoders are compatible if they comply with the specifications
listed in the following table.
Outputs (source drivers)
Specification Rating
V
oh
(high-level, on-state output
voltage)
Refer to the specifications for your
user-side power supply
I
oh
(high-level, on-state output current
for each output)
+24V @ .20A (for resistive and
inductive loads); +24V @ .10A (for
capacitive loads)
Turn on time 500 µs
Turn off time 500 µs
Inputs
Specification Rating
V
T
(input low/high trip threshold) 10.51V (min)
12.5V (typ)
14.61V (max)
V
T
(input high/low trip threshold) 6.4V (min)
8.3V (typ)
10.3V (max)
V
HYST
1.9V (min)
4.1V (typ)
6.5V (max)
I
IN
@ 27V 2.5 mA (max)
T
PD+
(input low/high debounce filter) .2 msec (typ)
T
PD-
(input low/high debounce filter) .2 msec (typ)
V
IN
(absolute max.) +75V (max)
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