Rockwell Automation 442L SafeZone Singlezone & Multizone Safety Laser Scanner - Manual (Page 50)

R
SafeZone™ Safety Laser Scanner User Manual
48 10000073050, July 2011
Original instructions
Minimum Typical Maximum
Static control input
Input resistance when HIGH 2 k Ω
Voltage for HIGH 11V 24V 28.8V
Voltage for LOW -3V 0V 5V
Input capacitance 15 nF
Static input current 6 mA 15 mA
Input frequency
(max. switching sequence or frequency)
1/(multiple sampling + 1) x scan time x 2
OSSDs
Output signal switching device pair 2 PNP semiconductors, short-circuit protected
‘
, cross-circuit monitored
HIGH switching voltage at 500 mA U
V
- 2.7V U
V
Switching voltage LOW 0V 0V 3.5V
Source switching current 6 mA 0.2 A 0.5 A
Leakage current
’
250 μA
Load inductance
“
2.2 H
Load capacity 2.2 μF at 50 Ω
Switching sequence (without switching and without simultaneous monitoring) Depending on load inductance
Permissible cable resistance
”
2.5 Ω
Test pulse width
•
230 μs 300 μs
Test frequency 120 ms
Switching time of the OSSDs from red to green 120 ms
Time offset on switching the OSSDs between OSSD2 and OSSD1 1.3 ms 2 ms
Application diagnostic outputs warning field, contamination of the front screen/
error, reset necessary
HIGH switching voltage at 200 mA U
V
- 3.3V U
V
Source switching current 100 mA 200 mA
Current limiting (after 5 ms at 25°C) 600 mA 920 mA
Power up delay 1.4 ms 2 ms
Switch off delay 0.7 ms 2 ms
Configuration and diagnostics interface
Communication protocol RS-232 (proprietary)
Transmission speed
9600 baud
19 200 baud
38 400 baud
Cable length at 9600 baud and 0.25-mm
2
cables 15 m
Galvanic de-coupling No
Output TxD HIGH 5V 15V
Output TxD LOW -15V -5V
Voltage range RxD -15V 15V
Switching threshold RxD LOW -15V 0.4V
Switching threshold RxD HIGH 2.4V 15V