ELECTRICAL CONNECTIONS
26 SMART-VS
POWER SUPPLY
The power must be between 10 and 30 Vdc only.
NOTE
INPUTS
There are two optocoupled polarity insensitive inputs available on the reader: Input 1
(External Trigger) and Input 2 (Remote Button).
The External Trigger is necessary to start acquiring and processing images.
The Remote Button installation is recommended in cases where the device is not acces-
sible and, in general, to have easier access to the Teaching function.
The electrical features of both inputs are:
V
AB
= 30 Vdc max.
I
IN
= 10 mA 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 "
or refer to the Settings section of the Smart-VS WebApp User’s Guide for fur-
ther details on these parameters.
These inputs are optocoupled and can be driven by both NPN and PNP type commands.
NOTE
Trigger and external push-button connection
The following table shows how to connect the Trigger and Remote inputs.
External
Push-Button
A Normally Open push-button is
needed.
I2A and I2B are polarity insensitive and
can be inverted.
Trigger signal
from PNP device
Connect the output of the PNP trigger
device to I1A and the GND supply rail to
I1B.
I1A and I1B are polarity insensitive and
can be inverted.
Trigger signal
from NPN device
Connect the output of the NPN trigger
device to I1B and the VDC supply rail to
I1A.
I1A and I1B are polarity insensitive and
can be inverted.
Each time the Smart-VS is powered on, the electronic focus motor sys-
tem does extra work for system checking and setup. It is recommended
to limit power cycles to a few times per day.
Polarity insensitive inputs assure full functionality even if pins A and B
are exchanged.
RECOMMENDED CONNECTION
NOTES
