Circuit Diagrams For Signal Inputs; Power Outputs - Avery Dennison ALS 204 Service And Installation Manual

7 E
LECTRONICS
7.7 A
PPLICATOR
Circuit diagrams for signal
7.7.3
inputs
All signal outputs are designed as PNP and are gal-
vanically separated from the 5 V control system (opto-
coupler).
Connection Maximalstrom
Applicator 0.5 A each power output
Maschine status 0.5 A each power output
[180] Maximum ouput current.
The maximum output power drawable from the 24 V
supply is 24 W (1 A). This is the sum of all sensor sup-
plies and of all switch outputs which are active at the
same time.
Applicator Interface
5 V 24 V
GND
[181] Main circuit for outputs (PNP).
The outputs are equipped with quad channel
power switches, which are protected against
overcurrent and overtemperature as follows:
– Overtemperature of a power switch: all out-
puts of the power switch are turned off, until the tem-
perature reaches the admissible range.
– Overcurrent of one or several outputs: the respecti-
ve outputs are pulsed until the overcurrent condition
is removed. During this, the output current is limited
to 400mA
During an error case, each quad channel power switch
sets a diagnosis signal, which is detected and sent to
the CPU by the microcontroller.
D
ESCRIPTION
I (
NTERFACE OPTION
GND
)

Power outputs

7.7.4
Power outputs can directly drive loads.
Load Max. value
Resistive load ≥ 48 Ohm @ 24 VDC
≤ 200 mJ
Inductive load
≤ 10 W
Lamp
[182] Admissible loads at power outputs.
Maximum admissible output current for each power
output: 0.5 A (I over all outputs < 1 A).
max
Quantity
Supply voltage
Voltage drop at V
OH
t
pLH
t
pHL
t
delay
1) Rise time „0" → „1" at 48 Ohm
2) Fall time „1" → „0" at 48 Ohm
3) 5 V microcontroller output → 24 V
[183] Switching levels of power outputs.
161
ALS
20X
256
Value Note
24 V ± 10%
≤ 0,5 V @ 0,5 A
1)
≤ 5 µs
2)
≤ 5 µs
3)
≤ 60 µs