Datalogic DS6300-100-011 Manual de Instalação Página 60

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DS6300 REFERENCE MANUAL
44
4
the same value which usually corresponds to 5 ms when using a photoelectric sensor, while
I2 is set to 500 s when this input is used for the Encoder. The maximum Encoder frequency
is 2 kHz.
Input 1 (External Trigger/PS) is used in the On-Line operating Mode and tells the scanner to
scan for a code. The yellow Phase On LED (Figure C, 3) which refers to Input 1 is on only
whe
n current flows through the input circuit and therefore when the active state of this input is
set to "active open", the LED lights up when the input corresponds to OFF.
Input 2 is normally used for the Encoder input. The Encoder detects the conveyor speed.
Inputs 3 and 4 can be used as the stop signal for the reading phase.
The debouncing delay value can be changed through the software parameter Debouncing for
Input x, see the "6-8 K Software Configuration Parameter Guide” or Help file.
Powering Inputs
Input devices can be supplied by either scanner power (Vdc and GND) or external power
supplies (Vext).
Electrical isolation between the input command logic and the scanner is maintained when
powering the input devices from an external supply voltage (Vext).
The driving logic of the input signals may be powered, for convenience, with the voltage
supply between pins 9 (Vdc) and 23 (GND) of the 25/26-pin I/O connector. In this case,
however, the device is no longer electrically isolated. The voltage available on the 25/26-pin
I/O connector, is physically the same as used to power the scanner.
INPUT 1 - 2 CONNECTIONS USING DS6300 POWER
EXTERNAL TRIGGER/ENCODER
DS6300
+ 5V
A/B
B/A
GND
V
~
~
+
-
V
dc
Ground
Figure 61 - PNP Command Input Connection Using Scanner Power
EXTERNAL TRIGGER/ENCODE
R
D
S
6
300
A
/B
B/A
GND
V
+ 5V
~
~
+
-
Groun d
Vdc
Figure 62 - NPN Command Input Connection Using Scanner Power
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