G
U/f>
24
U/f>
24
U/f>
24
en05000208.vsd
IEC05000208 V1 EN-US
Figure 61: Alternative connections of an Overexcitation protection
OEXPVPH(Volt/Hertz)
8.4.3 Setting guidelines
IP15039-1 v1
8.4.3.1 Recommendations for input and output signals
M6496-75 v4
Recommendations for Input signals
M6496-79 v5
Please see the default factory configuration.
BLOCK: The input will block the operation of the Overexcitation protection
OEXPVPH, for example, the block input can be used to block the operation for a
limited time during special service conditions.
RESET: OEXPVPH has a thermal memory, which can take a long time to reset.
Activation of the RESET input will reset the function instantaneously.
Recommendations for Output signals
M6496-84 v7
Please see the default factory configuration for examples of configuration.
ERROR: The output indicates a measuring error. The reason, for example, can be
configuration problems where analogue signals are missing.
START: The START output indicates that the level V/Hz>> has been reached. It
can be used to initiate time measurement.
TRIP: The TRIP output is activated after the operate time for the U/f level has
expired. TRIP signal is used to trip the circuit breaker(s).
Section 8 1MRK 504 169-UEN A
Voltage protection
158 Transformer protection RET650 2.2 IEC
Application manual
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