AS-Interface analog module VBA-4A-G11-I/U-F

The analog module VBA-4A-G11-I/U-F has four analog outputs. They can be configured either as current outputs (0 mA ... 20 mA) or voltage outputs (0 V ... 10 V). Automatic output detection allows outputs to operate as a current or voltage output, depending on the existing load. The outputs are configured as current outputs on delivery from the factory.

Power is supplied to the outputs through the yellow AS-Interface cable or auxiliary power, depending on the position of the DIP switch. Analog value conversion and data transfer are provided asynchronously according to AS-Interface profile 7.3. The rise time of the analog signals is approx. 2 ms.

If a current output has the analog value “0”, lead breakages are not monitored on the respective channel. In this case, peripheral faults are not signaled when there is no active connection to an actuator. If the internal “watchdog” monitoring function is enabled, the output signals are reset to zero if communication with the AS-Interface fails.

The G11 module with IP68/IP69K protection is particularly suitable for demanding field applictions. The connection to the actuators is established via M12 connectors. The module can be presddressed by connecting it to the handheld programming unit VBP-HH1 via the addressing socket. The connection to the AS-Interface transfer line is established using the AS-Interface flat cable.

Note:

A lead breakage at a current output, an output value outside the value range or an overload of the actuator supply is transmitted to the AS-Interface master via the 'peripheral fault' function. Communication via the AS-Interface continues.