Honeywell 10205/2/1 Fail-Safe Analog Output Module

Honeywell 10205/2/1 Fail-Safe Analog Output Module

Honeywell 10205/2/1 Fail-Safe Analog Output Module.pdf

Product Details:

The fail-safe analog output module 10205/2/1 has two 0(4)-20 mA output channels for analog control applications.

The load may only be resistive or capacitive. Inductive loads will cause the analog output module to be reported faulty. The two analog outputs are galvanically isolated from the 24 Vdc and the 5 Vdc.

The 0 V 1 and 0 V 2 pins are interconnected on the module. Each analog output channel consists of a 12-bit D/A converter for the output value and an A/D converter which reads the output value. Using the A/D converter it is possible to check the correct functioning of the D/A converter. Within the configured process safety time, the analog outputs are tested for:

• correct output value (current value ± 5%),

• ability to de-energize, and

• crosstalk between analog outputs.

If I/O backplanes are used, the analog output module 10205/2/1 requires a 10205/A/. module on each channel. Each analog output has a secondary means of de-energization, which enables the watchdog and/or the processor to de-energize the outputs, irrespective of the result of the application value.

The analog output module 10205/2/1 can only be used in non-redundant I/O configurations as it is not possible to put current outputs in parallel (which would be required for redundant I/O configurations).