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DigiSpeed-GX™
6.2.1 Motor Controller Connection
The DigiSpeed-GX™ is connected to the motor controller via the three terminal pluggable
connector J2.
The terminal labeled
•
connector on the speed controller.
The terminal labeled
•
controller.
The terminal labeled
•
speed controller.
These three connections plug into your speed controller in place of your existing manual
speed potentiometer. Unless you are using a voltage isolation board these leads are at
***MAINS VOLTAGE POTENTIAL
not connect any earthed test equipment to this terminal block as it is at mains potential.
6.2.2 Initial Testing
6.2.2.1
Attenuation Trimpot Speed Control.
To test the DigiSpeed-GX™ control manually via the attenuation trimpot VR1:
1. Turn off the Motor Speed controller and the CNC controller .
2. Set the DigiSpeed-GX™ mode to Attenuation Trimpot by inserting jumpers MS1
and MS2.
3. Turn the attenuation trimpot Anti-Clockwise eleven complete turns.
4. Power up the DigiSpeed-GX™ .
5. Turn on the Motor Speed controller. Ensure that there is 5Vdc power applied to the
DigiSpeed-GX™. You can verify this by the Lazy Double Flash of the LED
illuminated on the DigiSpeed-GX™.
6. Slowly turn the trimpot Clockwise unit the required maximum spindle speed is
reached.
6.2.2.2
Computer Speed Control.
To test the DigiSpeed-GX™ control from Mach3:
1. Turn off the Motor Speed controller and the CNC controller .
2. Set the DigiSpeed-GX™ mode to :PWM by inserting jumpers MS1 only.
3. Power up the DigiSpeed-GX™ .
4. Turn on the Motor Speed controller. Ensure that there is 5Vdc power applied to the
Copyright 2006 ©
- Users Guide
AV+
Vout
AGnd
Homann Designs
connects to the potentiometer positive voltage
connects to the potentiometer connector on the speed
connects to the potentiometer control voltage on the
***. They can cause serious injury or death. Do
Page 17
Revision 0.1
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