Laser Show Systems - Pinouts - Accelerator124

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Laser Show Systems - Pinouts

This section contains pinouts of many popular boards and components that are used in laser show systems.
DISCLAIMER: The pinouts shown here were contributed by manufacturers, vendors and individuals. While every effort has been made to insure accuracy, LaserFX.com can not be responsible for any errors or omissions.

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LSDI Accelerator124 scan amp card

Pinout for the card edge connector and on-board controls of the LSDI Accelerator124 scan amp designed to drive open loop galvos at speeds up to 12 K. This is NOT an official LSDI document - for the latest info, contact lsdi@lasdi.com

Card edge connector

Pin Number	Signal description
A	+VDC input (+15V to +18V)
B	Signal input (high)
C	N/C
D	N/C
E	Ground
F	Ground
H	Galvo High
J	N/C
K	Galvo Low
L	-VDC input (-15V to -18V)

NOTE: Amplifier is fused at 1.5 amps (Microfuse)

Adjustments on card

Adjustment trimmers in order from top towards bottom (edge connector) of the card - see layout diagram above.

Trimmer	Name	Description
VR2	Servo Gain	adjusts feed-forward compensation
VR1	Input Gain	adjusts level of input signal
VR4	di/dt	adjusts level of derived feedback
VR5	Damping	adjusts velocity signal level
VR3	Phase	fine-tune adjust to balance X-Y scanner pair
VR6	DC offset	Normally set to zero (center of range)

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