THORLABS LNR502E, Руководство пользователя

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Page 12 ETN053047-D02
LNR502E Encoded Long Travel, Linear Stage with Stepper Motor Actuator
Chapter 4 Operation
4.1 Encoder Calibration Check
Calibration of the encoder is performed at the factory during manufacture. The following calibration check should be performed
if the SmartSignal electronics module is replaced, or when the accuracy of the system is in doubt. If the calibration check cannot
be performed satisfactorily, the unit should be returned to the factory for recalibration.
1) Perform the installation, electrical connection and stage association procedures as detailed in Section 3.
2) Position the stage at least 7mm (1/4 in.) away from its mid point.
3) Insert a small diameter, non-metalic shaft (e.g. plastic paper clip) into the hole in the casing and push the Calibration button
- see Fig. 4.1. The Power/Calibration LED flashes continuously.
4) Move the stage backwards and forwards over its mid point until the Power/Calibration LED stops flashing.
5) Move the actuator over its complete range of travel. The green ‘Proper Alignment’ LED should remain lit. If the yellow or red LEDs
light, see Troubleshooting, Section 4.4.
Fig. 4.1 Calibration indicators
4.2 Selecting the Stage Type
To ensure that a particular stage is driven properly by the system, a number of parameters must first be set. These parameters relate
to the physical characteristics of the stage being driven (e.g. min and max positions, leadscrew pitch, homing direction etc.).
To assist in setting these parameters correctly, it is possible to associate a specific stage type and axis with the motor controller
channel. Once this association has been made, the server automatically applies suitable default parameter values on boot up of the
software.
4.2.1 Using Kinesis Software
1) Install the electronic hardware and connect the modules to the relevant axes of the associated stages (see the handbooks
for the associated controller).
2) For each Stepper Motor Controller in your system, fit the interlock plug (supplied) to the MOTOR CONTROL connector on
the rear panel.
3) Ensure that the device is connected to the PC and powered up.
4) Run the Kinesis software - Start/All Programs/Thorlabs/Kinesis/Kinesis.
Note
The TravelMax encoded stage incorporates a linear encoder sensor and a SmartSignal electronics module, designed by
MicroE Systems. When the TravelMax is driven by a Thorlabs stepper motor actuator, all programmable and diagnostic
features are enabled via the APT server software, and the following procedures assume that a Thorlabs DRV014 actuator is
fitted (i.e. as shipped with the LNR502E).
If the TravelMax is to be used with a manual drive or piezo actuator, then an RS232 Interface Adapter and additional
‘SmartSignal’ software are required before the encoder functionality can be enabled. These are available directly from MicroE
Systems.
Note
To ensure correct operation, it is important to select the correct stage and axis type as described. Selecting an incompatible
stage/axis type could result in reduced velocity and/or resolution, and in the worst case could cause the motor to run into the
end stops or home incorrectly. If using Kinesis software, see Section 4.2.1. if using APT, see Section 4.3.
Caution
The host PC must be running Kinesis v1.14.12 or higher.
power/calibration LED
alignment LED
(proper alignment - green
optimal alignment - bright green)
improper alignment LED - red
improved alignment LED - yellow
calibration button