User Manual SCA-LE-30-03
4.1.1 Setting of the Jumpers
Mode
Set Value via
Encoder Control
1,5 kHz
Offset -
potentiometer
external
potentiometer external
voltage
Note: Advanced information’s about the jumpers refer chapter 5.3.
4.2.2. Adjustment procedure for Encoder mode
1. Presetting of the jumpers J7 –J12 refer chapter 5.3.
2. Potentiometer pre setting refer chapter 5.2.
3. Choose the maximum set value (e.g. 10 V). Turn the potentiometer
n max
, until the
desired maximum speed is reached with unloaded motor.
4. Adjust the current limiter to a value requested by you with the
I max
potentiometer. It
is of major importance that this value is lower than the maximum admissible constant
current (see motor data sheet). To measure the motor current use a current probe in
one of the motor cables with an oscilloscope or a multimeter, or the
Monitor I
output.
5. Slowly raise the value of the
Gain
potentiometer. If the motor begins to work
unsteadily, to vibrate or to cause excessive noise, carefully lower the gain factor
again, until the instability symptoms have disappeared for all load selections
6. Set the set value to zero and adjust the
Offset
potentiometer, to the standstill of the
motor.
WARNING:
Correct connection of the encoder and
Tacho out
to
Tacho
is crucial. Otherwise
the motor operates at maximum speed without any control.
ElectroCraft
®
E-Mail: [email protected] www.electrocraft.com May 2009
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