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Trouble Shooting 
If your spindle is not turning on, follow the procedure below. 
1.  Check the REV and FWD LEDs on the Apollo I Breakout Board. 
a.  Neither REV nor FWD ever come on: 
i.  Make sure your spindle is enabled (Config->Ports and Pins->Motor Outputs). 
ii.  Set the spindle’s Step Pin# to 1 and the Step Port# to 2 (Config->Ports and Pins->Motor 
Outputs). 
iii.  Enable outputs 1 and 2, set both Port#’s to 2 and the Pin#’s to 14 and 16 respectively 
(Config->Ports and Pins->Output Signals).  
iv.  Make sure the check box Disable Spindle Relays is unchecked and that the Clockwise 
Output # is 1 and the Counterclockwise Output # is 2. Also, select the check box PWM 
Control and set the PWM Base Freq. to 100 (Config->Ports and Pins->Spindle Setup).  
b.  REV and/or FWD do work 
i.  Set the spindle speed to the maximum pulley speed. 
ii.  Check the 0-10V on 0-10 terminal on the Apollo I Breakout Board with a voltmeter. You 
should read 10V. 
iii.  Check your wiring.