ABB OmniCore V400XT Product Manual page 357

Recommended working procedure
If the FlexPendant starts but does not display the main interface during the start-up,
use this procedure to troubleshoot what might cause the problem.
Product manual - OmniCore V400XT
3HAC081697-001 Revision: A
7.2.5 Problem starting or connecting the FlexPendant
Action
DANGER
Troubleshooting on the controller while powered on must be performed by personnel
trained by ABB or by ABB field engineers.
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7 Troubleshooting
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