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The G540 is a complete 4-axis system which plugs directly into your computer via the parallel port and to your motors through DB9 connectors. It contains four G250 drives, an integral breakout board and a hard anodized aluminum case. Plug and play with CNC Router Parts NEMA 23 Stepper Motors and Cables!

• Four 10-Microstep motor drives
• 0 to 3.5A rated phase current
• 18VDC to 50VDC supply voltage
• Mid-band resonance compensation
• Auto standby current (70% current)
• Short-circuit protected
• Optoisolation on all LPT signal pins
• Two 1A at 0 to 50VDC rated outputs
• Four SPST to GND inputs (TTL)
• FAULT indicator LED,signal to PC
• POWER indicator LED
• I-SET resistor on motor connector
• TRIM adjust for motor smoothness
• Panel mount (5.7” by2.4” hole dim.)
• Anodized aluminum package
• No heatsink needed below 40C ambient
• Easy to service, removable drives
• Modular PCB design with no internal wires
• 10kHz watchdog timer (charge pump)
• Optoisolated analog output for a VFD drive
• Conservative ratings, premium components

More information at www.geckodrive.com