EM TEST Compact NX5
Operating Manual V 1.06 64 / 143
Variable voltage transformers adjustment procedure
The compact NX5 is able to control an external voltage source with a 0-10V analogue dc signal.
The 10V level corresponds to the max. output voltage of the connected voltage source. For the correct setting it
is necessary to know the max. output voltage of the source. For setting for ac or dc source the same procedure is
necessary.
Setup for adjust the external voltage variac to the compact NX5
The voltage setting is a regulating procedure where one
winding of the motor-variac is approx. 1.9 V.
Additionally the control needs some mechanical
tolerance for stop the step motor. Therefore the
selected voltage is normally in a tolerance of 4 V
The motor-variac control has an internal dead-zone
where the voltage will not be adjusted.
The following procedure will guide the user through the Set Voltage procedure.
The setting procedure for Vmax and Vnom is listed in the figures below.
If the output voltage is out of the tolerance, change the Vmax voltage and repeat the procedure.
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