| Control Inputs | 
        
        
            | Opticaly Isolated Control Inputs | 
        
        
            | Enable | 
            Active Low, Ri = 1 kOhm, 5mA max, 5V TTL Compatible | 
        
        
            | Dir | 
            Ri = 1 kohm, 5mA max, 5V TTL Compatible | 
        
        
            | Step | 
            Ri = 1 kohm, 5mA max, 5V TTL Compatible | 
        
        
            | SpdExt | 
            0-5 VDC, Ri = 100 kohms | 
        
        
            | Features Selected by Dip Switches | 
        
        
            | Microstepping | 
            1/1; 1/2; 1/4; 1/16 | 
        
        
            | Current | 
            .5 - 5A / 1 - 10A | 
        
        
            | Fallback | 
            Current at standstill is reduced to 60% | 
        
        
            | Internal Oscillator | 
            1.5Hz to 1.2 kHz | 
        
        
            | Oscillator x 8 | 
            1.2 Hz to 9.6 kHz | 
        
        
            | Outputs | 
        
        
            | Auxillary Voltage Sources | 
            5 VDC, 50 mA max | 
        
        
            | Error | 
            Optical 10 mA max | 
        
        
            | Display | 
        
        
            | LEDs | 
            green = power / red = error | 
        
        
            | Potentiometers | 
        
        
            | Function of Potentiometers | 
            Speed | 
        
        
            | Mechanical Specs | 
        
        
            | Dimensions (L x W x H) inches / (mm) | 
            (119) X (85) X (27.5) | 
        
        
            | Mounting Hole Distance (mm) | 
            112 X 50 | 
        
        
            | Weight in ounces / (grams) | 
            (220) | 
        
        
            | Operating Temperature (°C) | 
            -10 to +45 | 
        
        
            | Storage Temperature (°C) | 
            -40 to +85 | 
        
        
            | Humidity Range Not Condensing (% rH) | 
            20% to 80% Relative, Non-condensing | 
        
        
            | Operation Mode | 
        
        
            | Operation Mode | 
            fullstep 1/1 
            halfstep 1/2 
            microstep 1/4 
            microstep 1/16 |