EP2339-0042 - Introduction
16 digital combi channels 24 VDC
The EP2339-0042 EtherCAT Box has 16 digital channels, each of which can be operated either as inputs or outputs. A configuration whether a channel is to be used as input or output is not required; the input circuit is internally permanently connected to the output driver so that a set output is automatically displayed in the input process image.
The inputs have a filter constant of 3.0 ms. The outputs, which are protected against polarity reversal and short-circuit proof, can handle load currents of up to 0.5 A. The signal state is indicated by LEDs. The signals are connected via M12 screw connectors.
The EP2339-0042 is interference-free. You can use the EP2339-0042 instead of an interference-free standard terminal in accordance with the following chapters of the TwinSAFE Application Guide:
- "All-pole disconnection of a potential group with downstream interference-free standard terminals (Category 4, PL e)"
- "Single-pole disconnection of a potential group with downstream interference-free standard terminals with fault exclusion (Category 4, PL e)"
- „EL2911 potential group with interference-free standard terminals (Category 4, PL e)"
 | Supply of the connected sensors from UP, not from US In contrast to many other modules, the EP2339-0042 EtherCAT Box supplies digital sensors from the UP peripheral voltage and not from the US control voltage. |
Notice | |
For shutdown in the event of a fault, do not supply sensors externally If the design of your installation is such that the power supply voltage UP is switched off in the event of a fault, you must not power the connected sensors externally, but only through the EP2339-0042! Otherwise, when the UP energy is switched off, the EP2339-0042 can continue to draw energy from the external sensor supply, and the outputs will not be switched off. |
Notice | |
Damage to sensitive signal transducers due to current peaks The protective circuit of a digital input can cause an inrush current peak of well over 2 mA during the switching operation. This current spike can damage sensitive signal transducers such as reed switches.
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