VAMP 257 - Setting Protection Function Parameters

VAMP Ltd Feeder and motor manager
Operation and configuration
VAMP 257
VM257.EN002 VAMP 24h support phone +358 (0)20 753 3264
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The manager includes several protection functions. However,
the processor capacity limits the number of protection functions
that can be active at the same time.
5.6. Setting protection function parameters
The settings of the selected protection function can be read and
set separately in the submenus of each function.
Available Protection stages
• Overcurrent protection I>, I>>, I>>>
• Directional overcurrnet protection Iϕ>, Iϕ>>, Iϕ>>>, Iϕ>>>>
• Broken conductor protection I2/I1>
• Unbalance protection I2> *
• Phase reversal / incorrect phase sequence protection I2>> *
• Stall protection Ist> *
• Undercurrent protection I<
• Earth fault protection Io>, Io>>, Io2>, Io2>>
• Directional earth fault protection Ioϕ>, Ioϕ >>
• Overvoltage protection U>,U>>,U>>>
• Undervoltage protection U<,U<<,U<<<
• Reverse power and underpower protection P<, P<<
• Residual voltage protection Uo>, Uo>>
• Thermal overload protection T>
• Overfrequency and underfrequency protection f>< (fX),
f>><< (fXX)
• Underfrequency protection f<, f<<
• Rate of change of frequency (ROCOF) protection df/dt
• Frequent start protection N> *
• Circuit-breaker failure protection CBFP
• Arc fault protection ArcI>, ArcIo>, ArcIo2>
• Automatic re-close Recl
• Inrush detector If2>
• Synchrocheck function ∆f, ∆u, ∆ϕ
*) Available only when the application option is in motor protection