Test Procedure - PiezoDrive PD32 Manual And Specifications

15 Test Procedure for Grounded Load Versions
1. Turn the power off and disconnect all the inputs and outputs to the PD32.
2. Use a signal generator with a BNC output to create a 0V to +2V (2 Vpk-pk with 1 Vdc offset) 100Hz
sinewave. Check this with an oscilloscope.
3. Use the BNC to DSUB test connector supplied with the PD32 to apply the sine wave to all input
channels. Connect the input test connector to the PD32 with the supplied 32-Way DSUB cable.
4. Connect the PD32 to the output terminal block using the supplied 72-Way DSUB cable. Check that
nothing is connected to the terminal block outputs.
5. Turn the PD32 on and measure the output voltage on "1+" with an oscilloscope. The voltage should
be approximately 30 Vpk-pk with 15V DC offset. It may not be exactly 30 Vpk-pk as the input
impedance of all inputs in parallel is 1.65 kOhm and will reduce the signal generator voltage when
connected. You can measure the signal generator output and increase the amplitude and offset
until it is exactly 2 Vpk-pk with a 1V DC offset, the output should then be 30 Vpk-pk with a 15V DC
offset.
6. Increase the amplitude and/or offset of the input to verify that the output voltage range is correct.
7. Check the other channels successively by measuring the voltage at "+2" to "+32".
16 Test Procedure for Floating Load Versions
1. Turn the power off and disconnect all the inputs and outputs to the PD32.
2. Use a signal generator with a BNC output to create a +/-1V 100Hz sinewave (with zero DC offset).
Check this with an oscilloscope.
3. Use the BNC to DSUB test connector supplied with the PD32 to apply the sine wave to all input
channels. Connect the input test connector to the PD32 with the supplied 32-Way DSUB cable.
4. Connect the PD32 to the output terminal block using the supplied 72-Way DSUB cable. Check that
nothing is connected to the terminal block outputs.
5. Turn the PD32 on and measure the output voltage on "1+" with an oscilloscope. The voltage should
be approximately +/-10 V with zero DC offset. It may not be exactly +/-10 Vpk-pk as the input
impedance of all inputs in parallel is 195 Ohm and will significantly reduce the signal generator
voltage when connected. You can measure the signal generator output and increase the amplitude
until it is exactly +/-1V, the output should then be +/-10V.
6. Measure the inverting output "1-", which should be +/-10V but opposite polarity, i.e. 180 degrees
phase shift.
7. Since the load is floating and driven differentially by the "1+" and "1-" outputs, the total voltage
experience by the load is equal to twice that measured on either the "1+" or "1-" channels.
8. Increase the amplitude of the input and monitor the "1+" and "1-" output to check the voltage
range. The maximum output voltage on either the "1+" or "1-" outputs should be approximately
half the specified voltage range.
9. Check the other channels successively by measuring the voltage at "2+" and "2-" to "32+"
and "32-".
PD32 V4 Manual 13 15/02/2024