Leuze
electronic
Electrical Connection
Leuze electronic
Technical Description BCL 90
95
T
N
T 35/
7-
24V
Figure 7.6: Circuitry of the switched outputs "SWO 1 … SWO 4"
Table 7.20:Pin and terminal assignment of the switched outputs "SWO 1 … SWO 4"
Connect the outputs as shown in Figure 7.6.
Table 7.21: Characteristics of the switched outputs "SWO 1 … SWO 4"
Output (result X)
BCL "I/O" connection (pin Y)
SWO 1
Pin 4
SWO 2
Pin 8
SWO 3
Pin 10
SWO 4
Pin 15
Function assignment
(base setting)
SWO 1: "Device Ready" (statical), polarity: not inverted
SWO 2: "Good Read", polarity: not inverted
SWO 3: "No Read", polarity: not inverted
SWO 4: "Match 1", polarity: not inverted
Pulse duration: 400 ms each
Switching characteristics
p-n-p connected against the supply voltage V
S
Features
the current is limited to 0.7 A during short circuit
Electrical values
0 V
U
a
30 V
Guaranteed: U
a
V
S
- 1.3 V at I
a
100 mA
I
a
100 mA
Notice!
In the function "Device Ready", the output supplies a statical pulse when the BCL is in read
operation. For the connection of the switched output via the connector unit MA 90 see data
sheet MA 90.
Notice!
To check the switching functions with a high-resistance digital voltmeter, connect the out-
puts to a load. This measure serves to avoid a display of incorrect voltages/switching states.
GND
Result X
Y
R
L
V
S
5
Logic
V
S
=
DC +18 … +30 V for BCL without heater,
DC 24 V +20% / -10% for BCL with heater
Pulse duration depending
on the setting:
• 10 ms … 990 ms
• 100 ms … 9900 ms
• 00: statical (to the end of
the next reading cycle)
Fuse
Tempera-
ture
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