33
HA0114T Rev 10 May 2019
Chapter 4
4.2.6 .Rear Panel Piezo In Connector
The Piezo In connector provides the feedback connection from the piezo actuators
(strain gauge).
The pin functions are detailed in Fig. 4.3.
Notes.
† Power supply for the piezo actuator feedback circuit. It must not be used to
drive any other circuits or devices.
* This signal is applicable only to Thorlabs actuators. It enables the system to
identify the piezo extension associated with the actuator.
Fig. 4.3 Piezo In connector - pin identification
Note
For use with piezo actuators with feedback capability.
Pin
Description
Return
1
Wheatstone bridge excitation
4 or 6
2
† +15V
4 or 6
3
† -15V
4 or 6
4
d.c.(+) or Equipment ground
5
Feedback signal in
4 or 6
6
Equipment ground
7
d.c.(-) or Actuator ID signal*
4 or 6
8
RS485(-)
9
9
RS485(+)
8
5
4
3
2
1
9
8
7
6
