Specifications

Operation

Command

String to Send

Response Action Performed

SVA? A A=+0085.0000

Query the commanded output voltage. It

resulted from the last valid SVA command.

ERR? 302 -

(error 302 -

"Voltage out

of limits")

Get error code of the last occurred error. The

error code is cleared by the ERR? command

ERR? 0 - (error 0

- "No error")

No error occurred since the last ERR? query

VMA A 100

Set voltage output high limit for the axis to 100

volts.

SVA A 100

Set the output voltage for axis A to 100 volts.

SVA? A A=+0100.0000

Query the commanded output voltage. It

resulted from the last valid SVA command.

VOL? 1 1=+0099.3135

Query the current output voltage of piezo

channel 1.

POS? A A=+0106.1647

Query the current position axis A. The nominal

travel range @ 0 to 100 V is 100 µm, with a

tolerance of ±20%.

SVR A -20

Move axis A relative by subtracting 20 volts

from the current output voltage.

VOL? 1 1=+0080.4106

Query the current output voltage of piezo

channel 1.

POS? A A=+0093.9297

Query the current position axis A.

Example 2:

This example moves three axes in closed-loop operation. Afterwards the

current position is queried. It is discovered that axis B is blocked by an

external hard stop. It will then be moved back to its zero position.

Hardware: E-500 system with 3 channels, each equipped with a sensor

servo-module, piezo stage with 3 axes