ABB Ability 800xA Series User Manual

Also see for Ability 800xA Series: Operation User manual User manual Operation Operation

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ABB Ability 800xA Series User Manual Manual pdf 46 page image

In a redundant set of Linking Devices, removing the power supply, the Ethernet cableor a H1 link cable from the primary device causes a redundancy change-over. Beforedoing so, make sure that the secondary device is operational (and not still bootingdue to a prior change-over) and the redundancy link interface cable is intact andconnected. Otherwise the system breaks down or the configuration information mightget lost. Therefore, wait at least one minute between such checks.2.7 Replacing a Defective Linking Device in aRedundant Set of Linking DevicesFor replacing a defective Linking Device in a redundant set of Linking Devices, performthe following steps:1. Identify the defective Linking Device, refer to Status Indicators - LEDs on page 37.2. Remove the power terminal block from the Linking Device.3. Remove the redundancy link wiring and the Ethernet cable.4. If not indicated on the cable, make a note to which channel each H1 link is connected.Then remove the H1 terminal blocks.5. Make sure that the new Linking Device has the same IP configuration (IP addressand subnet mask) as the defective Linking Device, see Network Configuration onpage 62.6. Replace the defective Linking Device.7. Plug in the H1 terminal blocks. Make sure to use the same allocation as before.Make sure not to permute the H1 terminal blocks! An accidental permutation of theH1 link connections at the secondary Linking Device will not be detected right away.On application level, detection will not be possible before a redundancy switch-overtakes place or the live lists of primary and secondary Linking Device are beingcompared manually.2PAA114135-610 462 Hardware Installation2.7 Replacing a Defective Linking Device in a Redundant Set of Linking Devices