NOTICE
Damage after reconnecting due to a charged P-843!
The P-843 can remain charged when the connecting cable is pulled out of the electronics
during operation. Reconnecting a charged P-843 to electronics during operation can cause a
mechanical impulse that will damage the P-843.
►
Do not pull the connecting cable of the P-843 out of the electronics during operation.
►
If the connecting cable of the P-843 is accidentally pulled out of the electronics during
operation: Switch off the electronics before you reconnect the P-843.
NOTICE
Destruction of the piezo actuator due to overheating!
Overheating can destroy the piezo actuator.
►
Adjust the operating voltage, operating frequency and/or operating time so that the
maximum operating temperature (p. 28)
of the piezo actuator is not exceeded; see
"Determining the Operating Parameters" (p. 18)
NOTICE
Uncontrolled oscillation!
Oscillation can cause irreparable damage to the P-843. Oscillation is indicated by a humming
noise and can be caused by the following:
■
A change in the load and/or dynamics requires the servo-control parameters to be
adjusted.
■
The P-843 is operated near to its resonant frequency.
If you notice oscillation:
►
In closed-loop operation, switch off the servo mode immediately.
►
In open-loop operation, stop the P-843 immediately.
Starting and Operating the P-843
1. Start up the electronics (see the user manual for the electronics).
2. Configure the electronics for the P-843 during startup. If you are using a digital controller
from PI, run the PC software and select the entry in the positioner database that matches
the P-843 exactly.
3. Start a few motion cycles for testing purposes (see the user manual for the electronics).
7.3
Discharging the P-843
The P-843 must be discharged in the following cases:
■
When the P-843 is not in use but the electronics remain switched on to ensure
temperature stability
■
If the P-843 is accidentally disconnected from the electronics during operation
■
Before disassembling (e.g., before cleaning and transporting the P-843) as well as for
modifications
Requirements
✓
You have read and understood the
general safety instructions (p. 8)
Tools and Accessories
■
7 STARTUP AND OPERATION
P843M0001EN
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2/23/2021
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M O T I O N | P O S I T I O N I N G
