Characteristics of the inputs of module TBX DES 1622
(Original Document)
General characteristics
This table presents the characteristics of the inputs of module TBX DES 1622:
Module TBX DES 1622
Nominal voltage IS
24 V DC
Current at 24 V
15 mA
Sensor power supply IS
19.2 V DC to 30 V DC
Voltage for ON state
≥ 11 V
Current at 11 V
≥ 6 mA
Voltage for OFF state
< 5 V
Current for OFF state
≤ 2 mA
Input impedance
1.6 kΩ
Switch-on time
7  to 15.5 ms
Switch-off time
7  to 15.5 ms
Permitted line resistance (2 wire proximity sensor)
100 Ω
Permitted line resistance (volt-free contact)
500 Ω
Permitted leakage resistance (2 wire proximity sensor)
> 100 kΩ
Permitted leakage resistance (volt-free contact)
> 30 kΩ
IEC standard 1131
Type 2
Compatibility with Telemecanique 2 wire proximity sensors
Yes
Compatibility with CENELEC 3 wire proximity sensors
Yes
Compatible with TBX transistor outputs
Yes
Type of input
Resistive
Type of logic
Positive
Power dissipated per channel at ON state
0,36 W
Protection of +C terminals against overload or short-circuit
No
Protection against a reverse polarity on IS
Yes: reverse diode in parallel (ext. fuse 2 A (quick blow))
Key:
IS
Power supply to sensors.