Electrical characteristics
(Original Document)
Characteristics
The following table shows the electrical characteristics of the TSX EEF 16D2 module.
TSX EEF 16D2
Number of channels
16 inputs
IEC 1131-2 conformity
Yes, type 2
2-wire and 3-wire ddp compatibility
Yes
Nominal values (channels)
Voltage
24 VDC (positive logic)
Current
7 mA
Sensor supply (including ripple)
19.2 to 30 VDC
Max/min input values
Voltage at 0
< 5 V
Voltage at 1
> 11 V
Current at 0
< 2 mA at 11 V
Current at 1
> 6 mA at 11 V
Built-in protection against short-circuits
350 mA per 4 channel group.
Display per 8 channel group.
  • SF1: channels 0 to 7,
  • SF2: channels 8 to 15.
Standard response time
0 to 1
3.5 ms
1 to 0
3.5 ms
Sensor power supply surveillance
between 14 and 18 Volts
Isolation
Between channels
no
Between bus and internal logic
500 VAC
Module power consumption
130 mA with 10 inputs connected to 2 wire sensors (plus 10 mA per sensor input connected to each additional 2 wire sensor and plus 10 mA per 3 wire sensor used)
The following graph shows the standard response time for protection against short-circuits on sensor power supplies.