G201X STEP MOTOR DRIVE REV 5: SEPTEMBER 13, 2010 Thank you for purchasing the G201X drive. The G201X microstep drive is warranted to be free of manufacturing defects for 1 year from the date of purchase. Also anyone who is dissatisfied with it or is unable to make it work will be cheerfully refunded the purchase price if the G201X is returned within 15 days of the purchase date. PLEASE READ FIRST BEFORE USING THE G201X Before beginning, be sure to have a suitable step motor, a DC power supply suitable for the motor and a current set resistor. The motors rated phase current must be between 0 Amps and 7 Amps. The power supply voltage must be between 4 times and 20 times the motors rated voltage. The current set resistor may be a 1/4 Watt, 5% part. Finally have a STEP and DIRECTION pulse source available. DIFFERENCES BETWEEN THE G201X AND G201 The G201X is 100% backwards compatible with the G201 and G210. It has several new features and performance enhancements: 1.) STEP and DIRECTION is +3.3VDC and +5VDC compatible at 2.5mA 2.) Recirculate mode during STANDBY greatly reduces motor heating while stopped 3.) No external 470uF capacitor needed 4.) Power-on RESET 5.) Direction is clocked in on the active step pulse edge 6.) No internal jumpers, no current set resistor, DIP switch settings 7.) Low motor heating while stopped 8.) Universal step and direction COMMON G201X TERMINAL WIRING The G201X uses a 2-piece modular main connector. The connector is split in two pieces terminals 1 through 6 (power supply and motor leads) and terminals 7 through 12 (control interface). Each can be removed separately by pulling the connector body upwards and off of the mating header pins on the G201X. The connectors must initially be removed to mount the G201X to a heatsink or chassis. TERMINAL 1 Power Ground Connect the negative (black) lead of your power supply to this terminal. TERMINAL 2 Power (+) Connect the positive (red) lead of your power supply to this terminal. It must be between +18VDC to +80VDC. TERMINAL 3 Motor Phase A Connect one end of your Phase A motor winding here. TERMINAL 4 Motor Phase /A Connect the other end of your Phase A motor winding here. TERMINAL 5 Motor Phase B Connect one end of your Phase B motor winding here. TERMINAL 6 Motor Phase /B Connect the other end of your Phase B motor winding here. TERMINAL 7 Disable This terminal will force the winding currents to zero when shorted to ground (TERMINAL 12). TERMINAL 8 Direction Connect the DIRECTION signal to this terminal. TERMINAL 9 Step Connect the STEP signal to this terminal. TERMINAL 10 Common Connect the controllers +3.3VDC, +5VDC or GND to this terminal. 1 G201X STEP MOTOR DRIVE REV 5: SEPTEMBER 13, 2010 TERMINAL 11 Current Set (OPTIONAL) Connect one end of your current set resistor to this terminal. TERMINAL 12 Current Set (OPTIONAL) Connect the other end of your current set resistor to this terminal. POWER SUPPLY HOOKUP TERMINAL 1 Power Ground Connect the power supply ground to term.1 TERMINAL 2 Power (+) Connect the power supply + to this terminal The power supply voltage must be between 18 VDC and 80 VDC. The maximum power supply current required is 67% of the motors rated phase current. An unregulated power supply may be used as long as the voltage stays between the limits keep the ripple voltage to 10% or less for best results. The drive has a 2 second power-on reset time before the motor is energized. CAUTION Power supply voltage in excess of 80 VDC will damage the G201X. CAUTION Never put a switch on the DC side of the power supply This will damage, if not destroy, your drive The choice of power supply voltage depends on the high speed performance required of the motor doubling the voltage doubles the motors high speed power. In all cases the power supply voltage should be no less than 4 times or no more than 25 times the motors rated voltage. The motor may not run as smoothly as possible if the power supply voltage is less than 4 times the motors rated voltage. A power supply voltage greater than 25 times the motors rated voltage will overheat and damage the motor, even if it is not turning. Motor winding inductance should be 500uH or greater, but generally no more than 7mH. A more accurate calculation of power supply voltage is to find your motors inductance, and put it into the following equation. 32 * (mH inductance) = Power Supply Voltage If your motor has 2mH of inductance, the equation would look as follows. 32 * (2) = 45.12V MOTOR CONNECTION TERMINAL 3 Phase A Connect one motor winding to this terminal TERMINAL 4 Phase /A Connect the other end of the winding to this terminal TERMINAL 5 Phase B Connect the other motor winding to this terminal TERMINAL 6 Phase /B Connect the other end of the winding to this terminal Connect one motor winding to terminals 3 and 4. Connect the other winding to terminals 5 and 6. Turn the power supply off when connecting or disconnecting the motor. If the motor turns in the wrong direction, reverse the motor winding connections to terminals 3 and 4. CAUTION Do not short the motor leads to each other or to ground damage will result to the G201X. 4-wire, 6-wire and 8-wire motor may be used. When 6-wire motors are used, they may be connected in half winding or full winding. This is equivalent to an 8-wire motor connected in parallel or series. If a motor is connected in series or full winding, the motors phase current rating is half of its parallel or unipolar rating. The choice depends on the high-speed performance required a parallel-connected motor will provide twice the power of a series-connected motor at the same power supply voltage. 2