Optocoupler module switches 4A currents at 500Hz

The SIMATIC top connect modules enable users to connect I/O components quickly and reliably to SIMATIC S7-300 Controller input/output modules. One of the big advantages of the optocoupler technology is its high switching frequency of up to 500Hz - which compares favourably with the five to ten switching cycles per minute achieved by conventional relays.

The new eight-channel optocoupler module adapts the controllers' output signals to the power requirements of the I/O devices. The eight overload and short-circuit-proof 24V outputs are suitable for use with I/O devices with power requirements of up to 4A. The operating state of each individual channel is indicated by red and green LEDs; the red LED illuminates in the event of a wire break or an overload at the output. The unit also has two group error signalling contacts that are activated in the event of a fault. Four channels are assigned to each signalling contact. The new optocoupler module is available with screw or spring-loaded terminals.

For more information go to www.siemens.com/sitop.