8 Adjustment of Internal Settings
E-625 Piezo Servo Controller
PZ166E
Version: 2.0.0
53
a)
Switch the servo mode off immediately.
b)
Optimize the notch filter frequency and the P-I controller settings in the E-625
(p. 43).
c)
Make sure that servo mode is switched on.
2.
Send the
MOV A 0
command.
3.
Adjust the external measuring device so that it shows the zero position exactly.
4.
Send the
MOV A pos
command whereby
pos
corresponds to the upper travel range
limit in µm.
5.
Check the position of the positioner measured by the sensor:
a)
Send the
POS? A
command (
A
indicates the axis). The response must show the
upper travel range in µm.
or
b)
Read the sensor signal on the
SENSOR MONITOR
SMB socket using the voltmeter. It
must be e10.0000 V.
6.
If the sensor signal deviates from the upper travel range limit (the response to the
POS? A
command does not correspond to the upper travel range limit or the sensor
signal on the
SENSOR MONITOR
SMB socket is not +10.0000 V):
Adjust the GAIN fine adjust potentiometer (P6) on the E-802.55 servo controller
submodule using the trimmer adjustment tool until the sensor signal corresponds
exactly to the upper travel range limit (refer to the E-802 user manual).
7.
Read the measured value on the external measuring device.
The value must correspond exactly to the upper travel range limit.
8.
If the measurement value on the external measuring device deviates from the upper
travel range limit:
Adjust the R143 (p. 37) sensor gain potentiometer on the main board using the trimmer
adjustment tool until the external measuring device shows exactly the upper travel
range limit (the displacement of the positioner changes).
9.
If necessary, repeat the last steps until stable values are displayed on the measuring
devices.
Is the nonlinearity of the sensor signal more than 0.05 % of the nominal travel range?
If so: Linearize the sensor signal (p. 54).
If not: Disconnect the E-625 from the power source by removing the power cord of the
wide input range power supply from the power socket and close the E-625.
