2-20
2.7.14 HiD 2873/2874 Solenoid/Alarm Driver, Bus Powered
DC supply
Current consumption 65 mA
@ 24 V, 300 Ω load (per channel)
Power dissipation 1.1 W
@ 24 V, 300 Ω load (per channel)
Hazardous Area Signal (Output)
Output characteristic see diagram below
Response time (@ 300 Ω load)
Turn-on time 1 msec
Turn-off time 2 msec
Max. operating frequency 250 Hz
Safe Area Signal (Input)
Control input External switch (dry contact or open collector) non isolated or logic
level input fully floating
Operation mode Output ON with contact close, transistor ON or logic level > 4 V
Output OFF with contact open, transistor OFF or logic level < 1.5 V
Nominal load
> 100 Ω to < 5 KΩ
Short wire fault detect
< 25 Ω typical
Open wire fault detect
> 100 KΩ typical
Fault detect current 4 mA typical
Selector switches Input logic level
Input dry contact or
open collector
fully floating
Factory set as Input dry contact
LED Indicators Power ON
Output status
Line Fault
Green
Yellow (per channel)
Red (per channel)
Fault output Open Collector
Transistor
common to both channels
Output characteristic: