The device queries 4 potential-free contacts with internally generated query voltage. The input status is indicated by 4 yellow LEDs. The binary inputs enable the acquisition of a total of 4 input signals (in 2 groups). The devices have one button for manual operation per channel. The devices are supplied via the ABB i-bus® and do not require any additional power supply.
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Description
The device queries 4 potential-free contacts with internally generated query voltage. The input status is indicated by 4 yellow LEDs. The binary inputs enable the acquisition of a total of 4 input signals (in 2 groups). The devices have one button for manual operation per channel. The devices are supplied via the ABB i-bus® and do not require any additional power supply.