AEA 300, 8 analog inputs (4-20 mA)

The Helmholz GmbH & Co. KG Analog input module are set with the STEP 7® software. The module does not have a measuring range module, measuring range switchover operations are performed software-controlled via internal relays. Open circuit monitoring is possible in measuring range 4. to 20mA. If open circuit monitoring is active, the module detects a current <1.185 mA. The wire break is indicated by the group fault LED lighting up. The diagnostic bytes must be evaluated by the user. If the diagnostic alarm is enabled, the module also triggers a diagnostic alarm. If the wire break monitoring is not activated, the module will trigger a diagnostic alarm on reaching underflow.

Isolated from backplane bus
Isolated from power supply
Red LED for group fault display
16 bit DEA 300 front connector
24 V DC via front connector reverse polarity protection
8 inputs for connecting current sensors and current sinks