ABB | DSTC120 57520001-A | Communication Connection Unit

Product Description:

The number of simultaneously occurring overrides are controlled by a configuration parameter. The reset of the overridden signals can be done in several ways:
• The primary reset of overrides is via normal communicated dialog operations (manual entry). 

• A hard wired input to the Safeguard 400 Series is the secondary possibility for reset of all overrides in the safety system, independent of communication with any operator stations.
• Automatic reset of all overrides in case of loss of communication with all access granted operator stations.
• Automatic reset of all overrides in case of maximum allowed time exceeded timed from the first occurring override. The number of configured and active overrides are presented on the operator station and it is also possible to configure any active override in the system as an activation of a dedicated digital output. All activation and de-activation of overrides is recorded on the operator station event list.

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