Barcode reader VB34
Installation
Da
te
of
issue
06/
1
3
/2005
31
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
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OUT2+ is linked with the NO READ event, which indicates that no code has been
read.
OUT3+ is linked with the NONE event, i.e. no event. This means that the output
always maintains its status.
The characteristic electrical values of the outputs OUT1+ and OUT2+ are:
Maximum collector-emitter voltage
30 V
Maximum collector current
130 mA
Saturation voltage(VCE)
1 V at 10 mA max.
Maximum power loss
90 mW at T
U
= 50 °C
The limit defined by the maximum power loss is more important than the limit defined
by the maximum collector current: if one of these outputs is continuously deactivated,
the maximum current must not exceed 40 mA, even if up to 130 mA is permissible for
pulsed operation.
Figure 6.24
Connection layout of output 1 and output 2
OUT3+ is designed as a bidirectionally semiconductor relay with integrated current
limit and has thus different characteristic electrical values. At an ambient temperature
of 25°C, the maximum current through this output in continuous operation must not
exceed 200 mA, in pulsed operating, up to 300 mA is permissible. At a maximum
ambient temperature of 50°C, the maximum current is reduced to 160 mA
(continuous) and 240 mA (pulse).
The characteristic electrical values of OUT3+ are as follows:
Maximum voltage
100 V
Maximum collector current (pulse)
240 mA
R
on
6 – 15 Ohm
R
off
> 500 Ohm
Leakage current in Off status
< 1 µA
Maximum power loss
550 mW in T
U
= 50 °C
Figure 6.25
Connection layout of output 3
The control signal runs through a filter with a delay of 50 µs for OUT1+ and OUT2+
