Scope of Delivery

The module must be installed on a suitable connector board to be able to operate. If a Field

Termination Assembly (FTA) is used, a system cable is required to connect the connector board

to the FTA. Connector boards, system cables and FTAs are not included within the scope of

delivery.

The connector boards are described in Chapter 3.6. the system cables are described in

Chapter 3.7. The FTAs are described in own manuals.

Structure

The module is equipped with 24 digital outputs. The outputs are not electrically isolated from

one another and from the voltage supply.

The module is equipped with line monitoring (SC/OC). If the open-circuit monitoring is

configured in SILworX, see Chapter 4.3. the channels are automatically checked for open

circuits (OC) and short-circuits (SC). The switching thresholds for line monitoring are predefined

and cannot be modified.

The outputs are protected against high currents. If a short-circuit occurs, the current at each

output is limited to 2 A.

If a current higher than 0.75 A flows through an output for 50 ms, the affected output is switched

off for 5 s. If the  overcurrent is still present after the outputs is automatically re-switched on, the

output is switched off again for 5 s. This process is repeated as long as the overcurrent is

present. If the cyclic switch-on after overcurrent must be prevented, the user program must be

configured accordingly.

The safety-related 1oo2 processor system for the I/O module controls and monitors the I/O

level. The data and states of the I/O module are made available to the processor modules via

the redundant system bus. The system bus has a redundant structure for reasons of availability.

Redundancy is only ensured if both system bus modules are inserted in the base plates and

configured in SILworX.