LaserSpeed 8000-3 Instruction Handbook

Pulses look funny on an oscilloscope.

Wiring

Appendix E: Troubleshooting Guide

The pulse outputs should look something like the picture:

In this picture:

User VIN = +24VDC

Channel 1: Phase A True

Channel 2: Phase A False

Channel 3: Phase B True

Channel 4: Phase B False

If the pulses don't look like this, then the oscilloscope may not be connected properly, or the pulses/counter may be wired incorrectly.

Check that you are connected to the correct pins

Check that the scope ground leads are connected to Signal Ground, and not Phase A False and Phase B False.

Check that Phase A False and Phase B False are not connected to signal ground.

Miscellaneous

Gauge resets itself, (Laser On

Power Supply voltage is too

flashing, shutter opening/closing)

low on a long cable

Laser is flashing

Ambient temperature is too

 

high (or low.)

System Status Indicator is OFF

Laser At Temperature

Laser Interlock

Check +24VDC supply. Adjust up to +29VDC if necessary.

See Appendix D for more information

If the ambient temperature is too high, the gauge may not be able to properly control the laser temperature.

Connect air or water coolant to reduce the gauge temperature. See the Specifications section for details.

If in a hot environment, cooling may be required for the gauge to maintain the proper laser temperature. See the specifications section for details.

The Laser Interlock (Pin 16) must be

Part No. 93463 / Drawing No. 0921-01561

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Revision A (Sep 2007)

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Laser LS8000-3 manual Miscellaneous