OR-7453 binary output module

The OR-7453 binary output module has 8 relay outputs, max. 3 A. The outputs are arranged independently and are galvanically isolated from each other. The outputs are realized alternately by break-make and switching contacts (outputs 0, 2, 4 and 6 are break-make contacts, outputs 1, 3, 5 and 7 are switching contacts.

Figure 7.5.2.1 OR-7453 module connector (connection example)

• The module is fitted with a 20-pin connector. The user has a possibility to make a choice from several connector types according to the way of conductor connections (TXN 102 3x).

• Individual output groups are isolated only by operational insulation (it is not possible to switch for example the 230 VAC circuits by one group and the SELV 24 V circuits by a second group).

• The output of the switched DC load is limited by the load curve given in chapter 7.4.1.

• The electric lifetime of the contacts of the relays used is specified in chapter 7.4.4.

• The individual outputs can be loaded by a continuous current of up to 3 A.

• The minimum switched current (ensuring trouble-free relay operation) is 100 mA.

• The example on Figure 7.5.2 illustrates the use of the module (outputs DO0 and DO1) for three-point control of drives with interlocking.

• The break-make contacts can be used also as break contacts (DO4 in the example).