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DigiSpeed-GX™
DO NOT GROUND THE MAINS POTENTIAL SIDE OF THE
The DigiSpeed-GX™ controller provides a control voltage in place of the control voltage
provided by the manual speed control potentiometer. This voltage can be varied from 0V
to 100% of the maximum control voltage by computer software.
There are 1023 steps from 0 to the maximum control voltage. If your maximum spindle
speed is 6000 rpm, this effectively provides for a 6-rpm resolution in controlling spindle
speed.
4.2
Mode Indication LED
The DigiSpeed-GX™ controller contains a SMT LED that is used to indicate the input
mode that has been selected and when activity on the input is present.
4.2.1 Mode Indication
The DigiSpeed-GX™ controller used the indicator LED to show which input mode is
selected. It does this by flashing the LED on power up as described below;
• LED Off – This indicates that there is no 5Vdc power supplied to the DigiSpeed-
GX™ .
• Single Flash – Indicates that the DigiSpeed-GX™ is powered in Analog input
Mode.
• Double Flash – Indicates that the DigiSpeed-GX™ is powered in PWM input
Mode.
• Triple Flash – Indicates that the DigiSpeed-GX™ is powered in Multi-turn
Trimpot input Mode.
4.2.2 Input Activity Indication
The DigiSpeed-GX™ controller uses the LED to indicate when there is activity on the
input. This activity is as described below;
Copyright 2006 ©
- Users Guide
***YOU HAVE BEEN WARNED***
CIRCUITRY
Homann Designs
Page 10
Revision 0.1
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