8 Adjustment of Internal Settings
52
Version: 2.0.0
PZ166E
E-625 Piezo Servo Controller
Tools and Accessories
As for the adjustment of the sensor range (p. 48)
Adjusting the Static Sensor Gain in Analog Mode
1.
Switch the servo mode on by moving switch 3 on the
Settings
DIP switch block to ON
(down).
If an oscillation (positioner's humming) can be heard after switching on the servo mode:
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.
Apply 0.0000 V input voltage to the
ANALOG IN/WTT
SMB socket.
3.
Adjust the external measuring device so that it shows the zero position exactly.
4.
Apply e10.0000 V input voltage to the
ANALOG IN/WTT
SMB socket.
5.
Check the position of the positioner:
a)
Read the sensor signal on the
SENSOR MONITOR
SMB socket using the voltmeter. It
must be e10.0000 V.
b)
Read the measured value on the external measuring device. The value must
correspond exactly to the upper travel range limit.
6.
If the sensor signal on the
SENSOR MONITOR
SMB socket deviates from +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 is exactly
+10.0000 V (refer to the E-802 user manual).
7.
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).
8.
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.
Adjusting the Static Sensor Gain in Computer-Controlled Mode (E-625.CR only)
1.
Send the
SVO A 1
command (
A
indicates the axis) to switch on the servo mode.
If an oscillation (positioner's humming) can be heard after switching on the servo mode:
