Inputs
Product Reference Guide 73
Inputs
There are two optocoupled polarity insensitive inputs available on the reader:
Input 1 (External Trigger) and Input 2, a generic input:
The External Trigger can be used in One Shot Mode or in Phase Mode. Its main
func
tions are:
• acquisition trigger in One Shot Mode
• reading phase-ON/reading phas
e-OFF command in Phase Mode
The main functions of the general purpose Input 2 are:
• second external trigger in Phase Mode
• match code storage command when the Match Code option is enabled
The electrical features of both inputs are:
V
AB
= 30 Vdc max.
I
IN
= 10 mA (reader) + 12 mA (CBX) max.
The active state of these inputs are selected in software.
An anti-disturbance filter, by default, is implemented
in software on both inputs.
The value can be changed through the software parameter Debounce Filter. See
the Help On Line page of the Reading Phase step (Inputs) in DL.CODE for further
details on these parameters.
These inputs are optocoupled and can be driven by both NPN
and PNP type
commands.
NOTE
The connections are indicated in the following diagrams:
CBX100/500 Description
+V Power Source - External Trigger
I1A External Trigger A (po
larity insensitive)
I1B External Trigger B (polarity insensitive)
-V Power Reference - External Trigger
The yellow Trigger LED (Fi
gure 13, 5) is on when the active state of the External
Trigger corresponds to ON.
Polarity insensitive inputs assure full functionality even if pins A and B are
exchanged.
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