THORLABS ELL10(K), Руководство по эксплуатации

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ELL10 Linear Stage Evaluation Kit Chapter 5: Troubleshooting and FAQ
Page 12
ETN039959-D02
Chapter 5 Troubleshooting and FAQ
Stage is moving back and forth after power up
If the digital line “bw” is driven low before powering up the stage, the module will go into calibration mode. Remove power to exit
calibration mode. Keep line tight up to 3.3V or 5V rail during power up or use a serial communication line instead.
Stage not moving
Check power supply lines ratings (polarity, voltage drop or range, available current) or reduce cable length.
Check module is not in boot loader mode (power cycle the module to exit boot loader) consumption must be higher than 36mA
at 5V.
Stage does not complete homing commands
Power cycle the unit.
Perform a frequency search on both motors.
Stage switching time increased / max load decreased
Check power supply voltage provided on J7 connector, increase voltage within specified limits if voltage drop along cable goes
below 5V during system operation.
Clean the moving surfaces. To avoid grease contamination, do not touch the moving parts.
Temperature change may affect the stage performance. Using the software to perform a frequency search will compensate
frequency as needed (required current could reach 1.2A during frequency search, use an additional 5V 1A power supply and a
USB connection).
Integrators should search for optimal frequency on every power up sequence
(commands “s1”, “s2” see ELL protocol document)
How do I restore the factory (default) settings
Factory settings can be restored at any time – see Section 4.5.
What is the product lifetime
ELL10 product lifetime is restricted by the wearing of moving surfaces and the motor contact as motion is started (due to
resonance build up) and performed (due to friction), and is expressed in km travelled. Lifetime will depend on several factors
(e.g. load, number of homing operations, number of frequency searches etc.) and users must take into account all these factors
when considering life time. For example, homing requires more travel than a simple motion, and a frequency search may not
generate any motion at all, but still energizes the motors fully.
The unit is not designed for continuous operation. Users should aim for a duty cycle of less than 40% wherever possible, and
never exceed a duty cycle of 60% for longer than a few seconds.
The minimum lifetime is 100 km.
Handling
The stage and interface board are robust to general handling. To ensure reliable operation, keep the surface of the plastic track
contacted by the motors free of oils, dirt, and dust. It is not necessary to wear gloves while handling the stage, but avoid touching
the track to keep it free of oils from fingerprints. If it is necessary to clean the track, it may be wiped with isopropyl alcohol or
mineral spirits (white spirit). Do not use acetone, as this solvent will damage the plastic track.