MR tapcon 240, Operating Instructions Manual

Page: 47 / 174

6 Commissioning
Maschinenfabrik Reinhausen 2014 47 222/08 EN TAPCON® 240
2. Set overvoltage U> [%] to 115 % [ ► 82].
3. Set the absolute limit values parameter to Off [ ► 78].
4. Set desired value 1 such that the measured voltage Uactual is above
the overvoltage U> [%] limit value [
► 67].
Measured voltage = 100 V
Desired value 1 = Set to 85 V (less than 100 V/1.15 = 87 V).
ð The Overvoltage U> LED will light up.
ð The Overvoltage message appears in the display and the relevant
signaling relay is activated.
5. Press to select auto mode.
ð The LOWER output relay emits a control command every 1.5 sec-
onds.
6. Press to select manual mode.
7. Reset the operating values for desired value 1 and overvoltage U>
[%] to the desired operating values.
ð The function test for overvoltage blocking is complete.
Checking desired value 2 and desired value 3
1. Press to select manual mode.
2. Set desired value 2 to the value you want. [ ► 67]
3. Apply voltage L+ to terminal desired value 2 (see connection diagram).
4. Press until the main screen is displayed.
ð Desired value 2 is shown on the main screen.
5. Set desired value 3 to the value you want [ ► 67].
6. Apply voltage L+ to terminal desired value 3 (see connection diagram).
7. Press until the main screen is displayed.
ð Desired value 3 is shown on the main screen.
ð The function test for desired value 2 and desired value 3 is complete.
Checking line drop compensation
If you want to use line drop compensation, you need to run this function test.
A load current of ≥ 10 % of the nominal transformer current is needed for the
following function tests. Before the function test, ensure that all parameters
for line drop compensation [
► 89] and for Z compensation [ ► 91] are set
to 0 .
1. Press to select manual mode.
2. Press until the main screen is displayed.