Stepper Motor Drive - AC Current, STAC Series

・Materials
The STAC6-Q series stepper drives area powerful, two-phase, bipolar step motor drived for high-speed, high-torque applications. They employ sophisticated current control designed for optimal smoothness over a wide speed range. Anti-resonance, torque ripple smoothing, and microstepping work together to bring step motor performance to a new high.

The STAC6-Q and QE operates on single-phase 120 VAC and outputs up to 6.0 A/phase (peak-of-sine) to the step motor. The STAC6-Q-220 operates on single-phase 220 VAC and outputs up to 3.2 A/phase (peak-of-sine) to the step motor. They features over-voltage, over-temperature, and over-current protection and is complemented by a specially matched set of low-loss NEMA 23 and NEMA 34 frame step motors.

The STAC6-Q series can operate in all of the same control modes as an S drive, plus it has the ability to run stand-alone Q programs stored in non-volatile memory. Q programs are created using the Q Programmer™ software, which provides multi-tasking, math functions, conditional processing, data register manipulation, and more features in a robust yet simple text-based programming language

For connecting to external devices such as limit switches, proximity or photoelectric sensors, PLC I/O, lamps, and other devices, STAC6-Q and STAC6-Q-220 stepper drives come with 7 digital inputs, 3 digital output. The STAC6-QE stepper drive comes with 15 digital inputs, 7 digital outputs. All STAC6 series drive also come with 2 single-ended analog inputs (analog inputs can be wired together as 1 differential analog input).

The STAC6-Q series stepper drives come with an RS-232 port for configuration and programming. It also provides an RS-485 port for streaming serial (SCL) and Q commands over serial networks with up to 32 axes.

Each STAC6 drive comes with an encoder feedback connector for applications that demand a higher level of position control than ordinary open-loop step motor systems can provide. Use our double-shaft step motors with incremental encoders and activate either Stall Detection or Stall Prevention in the drive. Stall Detection notifies the system as soon as the required torque is too great for the motor, which results in a loss of synchronization between the rotor and stator, also known as stalling. Stall Prevention automatically adjusts motor speed to maintain synchronization of the rotor to the stator under all conditions. This unique feature allows step motors to operate in a much broader range of applications than previously possible, such as torque-control. The Stall Prevention feature also performs static position maintenance, which maintains the position of the motor shaft when at rest. Additionally, the inclusion of the optional encoder allows the motor to be precisely homed to the index (marker) pulse.

The STAC6-QE is UL Recognized (File No. E310506), CE approved.

STAC6-Q Series Features

• 744 lines of stored program capability • Math calculations using analog and digital parameters • Stall detection and prevention with encoder feedback • 7 digital inputs, 3 digital outputs on the Q and 15 digital inputs and 7 digital outputs on the QE, all optically isolated • 2 analog inputs, +/- 10 volt range • Microsteppong to 51,200 steps/rev • RS-232 cable and all mating connectors are included. • Idle current reduction • 32 axis multi-drop capability • Capable of all "S" drive control modes