Physik Instrumente E-625.C0, Руководство пользователя

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8 Adjustment of Internal Settings
E-625 Piezo Servo Controller PZ166E Version: 2.0.0 51
5. Establish communication between the PC and the E-625 e.g. with PIMikroMove.
6. Send the
SVO A 0
command (
A
indicates the axis) to ensure that the servo mode is
switched off.
7. Increase the piezo voltage using the SVA command in increments of 10 volts from 0 V
up to the value where the upper travel range limit for the positioner is reached
approximately.
8. Send the
SVA A 0
command to set the piezo voltage to 0 V.
9. Read the sensor signal.
− Use the voltmeter on the SENSOR MONITOR SMB socket.
or
− Send the
POS? A
command (
A
indicates the axis).
10. If necessary, perform (p. 27) a zero-point adjustment of the sensor.
11. Send the
SVA A 90
command to set the piezo voltage to 90 V.
12. Resent
SVR A1
to slowly increase the piezo voltage until the external measuring device
shows the nominal displacement of the positioner (upper travel range limit).
13. Adjust the R143 (p. 37) sensor gain potentiometer on the main board with the trimmer
adjustment tool until the sensor shows the nominal displacement:
−
The voltmeter on the SENSOR MONITOR SMB socket shows +10 V.
or
− The response to the
POS? A
command shows the upper travel range limit in µm.
14. If necessary, repeat the last steps until stable values are displayed on the measuring
devices.
Do you want to use your system in closed-loop operation?

If so: For the highest positioning accuracy in closed-loop operation, adjust (p. 51) the
static static gain factor.

If not: Disconnect the E-625 from the power source by removing the power cord of the
wide-range-input power supply from the power socket and close the E-625.
8.6.2 Adjusting the Static Sensor Gain for Closed-Loop Operation
The adjustment of the static sensor gain ensures that in closed-loop operation the positioner
moves precisely to the upper travel range limit when this position is commanded. The setting is
made in closed-loop operation (servo mode ON).
Requirements

You have correctly adjusted the sensor range (p. 48).

You have not changed anything on the system setup that was used for the adjustment
of the sensor range. All devices are still ready for operation.

You have the user manual of the E-802 servo controller submodule within reach.