Introduction to the TBX DMS 16P22 module
(Original Document)
About us
General
The TBX DMS 16P22 is a modular base unit with 24 V DC inputs, compatible with 2 and 3 wire proximity sensors and 24 V DC 0.5 A transistor outputs. The number of inputs/outputs is variable (8I/8O, 9I/7O, ..., 16I/0O).
The module is equipped with a terminal block for direct wiring of the sensors and preactuators, which can be removed when it is switched off.
The sensor voltage and preactuator voltage are monitored to ensure that there is sufficient voltage for the inputs to operate correctly and for coherent processing of the outputs.
The outputs are protected against overloads and short-circuits. If there is a fault at an output, it is set to a safe state, the default state, which is determined by the user: fallback position.
Once the fault has been corrected, the output can be reactivated, if it is reset.
The inputs/outputs of this module have functions which, in certain cases, are common to a group of channels. Thus, it is possible to assign the 2 channel groups of the module to the various tasks in the application.
Specific function
Each of the channels 8 to 15 of this base unit can be programmed, either as an input or as an output. This enables one base unit to have either 16 inputs, or 1 to 8 outputs and 15 to 8 inputs.
Technical specifications
The following table provides the technical specifications of the module.
TBX DMS 16P22
Nominal voltage +SV
24 V DC
Supply voltage +SV
19,2 V DC to 30 V DC
Current drawn on +SV of the base module (at 24 V)
if basic unit
30 mA typically
if extension base unit
negligible
Current drawn at +SV by extension module (at 24 V)
25 mA typically
Current drawn at +IS (at 24 V)
(loading = 60 %)
75 mA typically
Current drawn at +OS (at 24 V)
(with no active outputs)
100 mA typically
Power dissipated at nominal load in the module
(loading = 60 %)
6,5 W at 24 V
Dielectric strength between inputs and ground (GND)
1500 V rms - 50/60 Hz for 1 min
Isolation resistance
> 10 MΩ below 500 V DC
Key:
SV
Power supply to module (communication module if present and input/output interfaces).
IS
Power supply to sensors.
OS
Power supply to pre‐actuators.