piezosystem jena ENT Instruction Manual page 38


Turn the potentiometer into the maximum clockwise position (Pos. 4). The
display shows the maximum position. The total motion in open loop regime is
Pos.4 – Pos. 1.

Switch on the closed loop for this channel (closed loop = on).

The actuator moves to its zero position in closed loop regime (Pos. 2). The
display shows 0.0µm (±0.1) if there is no offset to the system. Because of the
fast motion of the actuator to Pos. 2 a noise or crack can be heard. This is
normal and not a malfunction.

Turn the potentiometer to the clockwise position. The actuator makes its
maximum movement in closed loop regime (Pos. 3). The total motion in
closed loop regime is Pos. 3 - Pos. 2. The specific value for that axis is given
in the calibration curve of the actuator.

Turn the potentiometer to its counter clockwise zero position, switch off the
closed loop switch (closed loop = off).

If the procedure is done you can switch off the electronics. Before you switch
off the electronics, be sure that the potentiometer is in the left zero position
and the closed loop switch is switched off!
If an EDA board is installed:

Please connect the PC and the EDA board by using an the interface cable
(both units must be switched off).

Switch on both units.

Please use a standard terminal program to operate the EDA board via your
PC (The terminal program is part of your operating system normally, please
refer your OS manual). Parameter: COMx:9600,n,8,1.
Geschäftsführer: Dr. Bernt Götz • Telefon 03641/66880 • Fax 03641/668866 • www.piezosystem.com
38
sketch 1: motion open loop closed loop