TROUBLESHOOTING:
EVERYTHING IS CONNECTED, NOTHING HAPPENS: Is the GREEN LED lit? If not, either the G203V has no power supply voltage
connected or something very bad caused its internal fuse to blow. Check the power supply voltage using a multimeter set to ‘DC
VOLTS’ on terminal screw heads 1,2 of the drive.
The internal fuse is the G203V’s final line of protection. It blows only under the most extreme circumstances. Those are reversed
power supply polarity; AC voltage instead of DC voltage on terminals 1 and 2 and power supply voltages in excess of 114VDC.
Correct the problem and replace the fuse with the only approved type. It is the only kind that blows fast enough to protect the
G203V. Anything else voids the warranty.
The fuse used is manufactured by Littelfuse with manufacturer part number 0251005.MXL and can be purchased from Digi-Key
(
) or you can contact Geckodrive and we can send you some.
EVERYTHING IS CONNECTED, RED INDICATOR STAYS LIT: If the RED and GREEN indicator LEDs are lit then the motor is miswired,
the motor has a wire shorted to ground, is shorted to another motor wire or the motor is bad. Secondarily: Everything ran OK but
the RED LED lit a while later. Check the drive temperature; it may have overheated because of inadequate heatsinking. Also see
that the DISABLE input isn’t being activated (+5VDC on DISABLE).
MOTOR HAS NO HOLDING TORQUE: If the RED LED is off and the GREEN LED is on, check the CURRENT SET resistor with a
multimeter. Re-calculate the resistor value. Check to see if the motor is connected to the G203V.
MOTOR HAS HOLDING TORQUE BUT WON’T MOVE: Check your STEP, DIRECTION, DISABLE (if used) and COMMON interface.
Verify COMMON goes to your controller GND.
MY MOTOR RUNS ROUGH AT LOW SPEEDs: Try adjusting the ADJUST trimpot setting. Verify you are using the correct CURRENT
SET resistor. A round stepper motor will not operate as well as a square stepper motor as they were not designed for
microstepping.
THE YELLOW LED NEVER LIGHTS: You are not going fast enough to get full power from your motor. If you don’t need to go any
faster, use a lower power supply voltage. This indicator is a good application diagnostic for motor gearing and power supply
voltage choice. Using it correctly will help you to optimize your system.
G213V ADJUSTMENTS
