LACROIX Sofrel S4W - 16 DI Expansion Module Details; 16 DI Technical Specifications

16 DI Expansion Module
16 DI Expansion Module
Connection of DIs
Example for 2 DIs:
Technical specifications
- Number of digital inputs: 16
- Dry self-powered contacts:
- Normally open/Normally closed
(Configurable positioning logic)
- Maximum length of cable:
- 1,000 metres (AWG24 SYT+ cable type)
It is necessary to relay the digital inputs if the cable length is any higher
or if the cable crosses an environment with high interference.
- Digital input filtering for counters:
Any steady state digital input can be used for the counter acquisition; the minimum duration
of the steady state is 2 ms (max frequency is 250 Hz)
- Bias voltage: the max bias voltage on a DI is 15 V.
- Insulation: the DIs are isolated from the rest of the I/O module electronics; the insulation voltage is 3000 VDC minimum.
The DIs are not isolated from each other.
1 pair
for digital input no.2
1 pair
for digital input no.1
1 shared for 4 digital inputs
+24 V
DC
0V or GND
Possible applications:
Pulse counters
Duration counters
Digital input loop: Normally
closed
Digital input loop: Normally open