Laser LS8000-3 manual Advanced Operating Parameters, Length Threshold a, Length Threshold B

LaserSpeed 8000-3 Instruction Handbook

LaserTrak Software

Low Speed Pulse Config The low speed pulse output defaults to outputting pulse according to the Low Speed Pulse Rate set in the standard Configuration Tab. The pulse output can be configured to output gauge status if the low speed pulse output is not needed. The choices are shown in the table.

Length Threshold A	Indicates when the current length has exceeded the Length Threshold
	A set point. This output is reset when the Index Pulse resets. See the
	Index Pulse/Length Thresholds section for details about length
	thresholds.
Length Threshold B	Indicates when the current length has exceeded the Length Threshold
	B set point. This output is reset when the Index Pulse resets. See the
	Index Pulse/Length Thresholds section for details about length
	thresholds.

Advanced Operating Parameters

Direction Inversion Switch

Changes the function of the Direction Digital input.

When set to Normal, a low voltage on the Direction Input (or leaving it disconnected) will cause the gauge to measure a positive velocity and the length to count up, and a high (5-24V) voltage on the Direction Input will cause the gauge to measure a negative velocity and the length to count down.

When set to Reverse, the polarity of the digital input is reversed, so a low will cause the gauge to measure a negative velocity, and a high (5-24V) will cause the gauge to measure a positive velocity.

Changing the direction will also change the phase of the pulse outputs, causing a connected quadrature counter to count in the opposite direction.

Part No. 93463 / Drawing No. 0921-01561 Page 111 of 221 Revision A (Sep 2007)