7 Functions and settings
Maschinenfabrik Reinhausen 201480 3550953/00 ENTAPCON® 230 pro
1. > Control parameter > Limit values > Press until the
desired parameter is displayed.
ð U< blocking.
2. Press for On setting or for Off setting.
3. Press .
ð Undervoltage blocking is activated/deactivated.
Activating/deactivating message for voltages below 30 V
You can use this parameter to set whether the Undervoltage message is to
be suppressed at a measured value of less than 30 V. This setting is used to
ensure that no event message appears when the transformer is switched off.
You can select the following options:
Setting Function
On The Undervoltage message is also displayed
when the measured value is less than 30 V.
Off The Undervoltage message is no longer dis-
played when the measured value is less than
30 V.
Table 12: Response
To activate/deactivate the message, proceed as follows:
1. > Control parameter > Limit values > Press until the
desired parameter is displayed.
ð U< also under 30 V.
2. Press for On setting or for Off setting.
3. Press .
ð The message is activated/deactivated.
Setting overvoltage monitoring U>
You can use these parameters to set the limit values for overvoltage moni-
toring. This overvoltage monitoring triggers tap-change operations to return
to the desired operating status. If the operating status can no longer be cor-
rected, a message is triggered by the Function monitoring relay.
If the measured voltage V
actual
exceeds the set limit value , the red LED V>
and associated signaling relay activate (contact X4:1/3 opens and X4:2/3
closes). The Overvoltage V> message appears in the display. At the same
time, the high-speed return function is activated without delay time T1. Once
the set switching pulse time
has passed, the tap position is lowered by
activating the motor-drive unit until the measured voltage V
actual
again falls
below the limit value . The Overvoltage V> message is reset.
7.5.2
Response to high-speed
return
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