Double Dips - ABB UMC100.3 Manual

C O N F I G U R I N G T H E M OTO R P R OT E C T I O N F U N C T I O N S

Double Dips

Special handling can be activated if two Dips occur within one second. Set parameter 'Dip Enable' to 'On + Rapid Cycle Lockout'. If
within one second two low voltage situations occur, immediately after the start of the second low voltage situation the contactors
are switched off. They are automatically switched on again after the 'Dip Autorestart Delay' time if 'Dip Autorestart Enable' is set.
U
L
Dip
Restart
Level
Dip
Level
UMC Relay Out
DIP signal at
digital input
Relevant Parameters:
• Dip Enable
• Dip Duration
• Dip Autorestart Window
• Dip Autorestart Delay
1st undervoltage
situation
Dip Autorestart Window
Undervoltage situation
<1s
• Dip Autorestart Enable
• Dip Level (only when using the VI15x modules as trigger source)
• Dip Restart Level (only when using the VI15x modules as trigger source)
2nd undervoltage
situation
Undervoltage
Dip
situation
Autorestart
Delay
No Delay!
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