6 Starting and Operating
P-5x7/P-5x8 Positioners
PZ82E
Version: 3.2.0
27
6.2
Operating the P-5x7/P-5x8
Requirements
You have read and understood the general notes on starting and operating.
You have read and understood the user manual for the electronics.
You have read and understood the user manual for the PC software.
You have correctly installed (p. 17) the P-5x7/P-5x8, and connected it to the protective
earth conductor (p. 18).
The electronics and the required PC software were installed. All connections to the
electronics were made (refer to the user manual for the electronics).
Operating the P-5x7/P-5x8
Follow the instructions for starting and operating the P-5x7/P-5x8 in the manual for the
electronics (p. 11) used.
6.3
Discharging the P-5x7/P-5x8
The P-5x7/P-5x8 must be discharged in the following cases:
Before Installation
When the P-5x7/P-5x8 is not used but the electronics remain switched on to ensure
temperature stability
Before demounting (e.g., before cleaning and transporting the P-5x7/P-5x8 and for
modifications)
The P-5x7/P-5x8 is discharged via the discharge resistor inside the electronics from PI.
Discharging a positioner connected to the electronics
In closed-loop operation:
1.
Switch off the servo mode on the controller.
2.
Set the piezo voltage to 0 V on the controller.
In open-loop operation:
Set the piezo voltage to 0 V on the electronics.
Discharging a positioner not connected to the electronics
Connect the positioner to the switched-off electronics from PI.
