Encoder Input; Inputs And Outputs - OWIS PS90 Betriebsanleitung

Encoder Input

The encoder input enables both the connection of encoder with line
drivers (antivalent signals for CHA, CHB and optionally index I), and
of encoders with TTL/CMOS signals.
The following input signals are defined:
supply voltage
channel
channel
channel
channel
channel
channel
The conversion of the antivalent signals to TTL signals takes place
with RS-422 recievers. If an encoder with TTL/CMOS signals is
connected, then the input for the inverted signal remains open and
is internally pulled to 1.4 V by a high-impedance voltage divider.
The conductor paths of the inverted signals have cut-off points on
the drive controller boards inside the PS 90 with soldering jumper
pads, in order to allow interruption and reconnection of the
inverted signals, if necessary. A pull-up resistor is provided towards
+ 5 V at the non inverted inputs.6.2 Inputs and Outputs

6.2 Inputs and Outputs

For the interaction with external sensors and actuators, corresponding
digital and analog inputs and outputs are provided.
Forked light barriers, etc. can be connected to the TTL-compatible
inputs.
Using the TTL outputs it is possible to control digital hardware
directly in the application setup.
The SPS compatible inputs enable the use of the 24 VDC inductive
sensors in two-wire and three-wire technology, typically used in
mechanical engineering. The load-resistor array of the SPS inputs
can be configured as Pull-Up or Pull-Down, using the software.
The SPS outputs control single solenoid valves or other inductive
and resistive loads directly (switching towards + 24 V). The outputs
are short-circuit proof.
features level
TTL inputs 0-5 V
SPS inputs 0-24 VDC
analog inputs 0-4.096 VDC
TTL outputs 0-5 V
SPS outputs 0-24 VDC
analog outputs 0-4.096 VDC
power outputs 0-24 VDC
The analog inputs can measure voltages between 0 V and 4.096 V
directly and convert them into digital values with a resolution of
10 bits (reference voltage: 4.096 V). The in- and outputs are not
galvanically separated.
The query commands "?ANIN<uv>" and "?INPUTS" correspond to
the same inputs of the PS 90 (see command set, page 62). The eval-
uation of the inputs takes place either analog or digital.
The four power outputs are PWM-type and switching towards
GND. They are designed to drive inductive loads which need a
high actuating current for a short time and a low stand-by current
afterwards, as holding brakes or solenoids, e.g.
Änderungen vorbehalten
48
V cc (+ 5 V); GND
A (TTL or CMOS)
A inverted
B (TTL or CMOS)
B inverted
I (TTL or CMOS)
I inverted
current others
2-wire/3-wire
resolution 10 bit
10 mA
300 mA short-circuit proof
10 mA resolution 10 bit
1.0 A PWM
Betriebsanleitung-User Manual PS 90
The power outputs can be configured by software especially for
driving a motor holding brake.
The emergency-stop functionality of the PS 90 is based on EN 418
and interrupts the supply circuit of the motor output stages on the
secondary side (safety-low voltage 24 V or 48 V). The function is
implemented by means of a self-holding relay with forcibly actuated
contacts (two n.c. contacts in series). When switching off the output
stages, their supply is switched off and additionally, the output
stages are disabled (dual security).
Subject to change without notice