At a Glance

The BMX DAO 1615 module is fitted with a removable 40-pin terminal block for the connection of 16 triac isolated output channels.

Output Circuit Diagram

The following diagram shows the circuit of an alternating current triac isolated output:

Module Connection

NC: Not connected.

1 4 A fast blow fuse.

2 Inductive load.

3 Resistive load.

2a and 3a Recommended output protection (see note below).

NOTE: The recommended output protection for both inductive and resistive load is composed of a varistor (GMOV 24...240 Vac). The electronic characteristics of the varistor depend on the voltage required by the device used.

For inductive load, an optional RC filter (snubber) is recommended in addition to the varistor. The values for the resistor and the capacitor depend on the device used.

Each terminal capacity is one wire 22...18 AWG (0,34...1 mm2). For more details, refer to terminal block wiring capacity.

Output Usage Rules

Usage of the outputs with different phases, is dependent on the power supply voltage:

  • In the range of 24...133 Vac, adjacent channel outputs can be used.

  • In the range of 133...240 Vac, the channel outputs used, need to be separated by an unused channel output (for example Q1 and Q2 with phase A, skip Q3, and Q4 with phase B).