PI PiezoWalk E-712 - Sensor Channels; Assignment of Channels to Axes

User Manual
E712T0010, valid for E-712.N1, E-712.1AM, E-712.1AN, .2AN, .3AN
CMo, BRo, 10/31/2024
Physik Instrumente (PI) SE & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany page 18 / 40
Phone +49 721 4846-0, fax +49 721 4846-1019, e-mail info@pi.ws, www.pi.ws
5.4 Sensor Channels
In the firmware of the E-711/E-712 system, the sensor channels are a subset of the input signal channels,
representing the lines provided for the sensors which are integrated in the connected mechanics. For the
available sensor input hardware and the corresponding channels, see also “Specifications and Product
Descriptions” and “Accessible Items and Their Identifiers” in the E-712 User Manual (PZ195E).
The Number Of Sensor Channels parameter, ID 0x0E000B03, gives the number of sensor channels.
5.5 Assignment of Channels to Axes
For the assignment of sensor channels to axes see “Input Signal Processing” in the E-712 User Manual (PZ195E).
Each axis must be assigned to at least one PiezoWalk channel, and each PiezoWalk channel must be assigned to
the piezo amplifier channels required to control the corresponding PiezoWalk® drive. Normally, your E-711/E-712
system comes preconfigured.
CAUTION
Incorrect parameter values may lead to improper operation or damage to your hardware. PI strongly
recommends to change the preset parameter values only after consultation with the PI customer service
department.
If you nevertheless want to change the assignment, you have to adjust several parameters using the SPA or SEP
commands or via the Device Parameter Configuration window of PIMikroMove. Proceed as follows:
1. Assign the piezo amplifier channels to the PiezoWalk channel:
When you are working in the Device Parameter Configuration window: Select the PiezoWalk parameter
group for the PiezoWalk channel to be configured.
Set the PiezoWalk Shear Channel and PiezoWalk Clamp Channel parameters (ID 0x09000100,
0x09000101, 0x09000200, 0x09000201) to the identifiers of the piezo amplifier channels to be used for
the shearing and clamping components of the pairs of piezo actuators. Possible identifiers for the piezo
amplifier channels depend on the number of amplifier modules present in the E-712 system.
Every piezo amplifier channel can be assigned once only, i.e. can only be dedicated to one of the four
voltage signals required for one certain PiezoWalk channel.
Setting a parameter value to zero means that no piezo amplifier channel is required. This can be the case,
for example, with customized PiezoWalk® drives which need no second clamping voltage due to the
internal wiring.