The
STM24QF-3RE integrated stepper is a drive+motor unit, fusing a NEMA 24
step motor and a sophisticated, 6.0 A/phase (peak-of-sine) step motor
drive into a single device. Power to the drive, located at the rear of
the motor, must be supplied by an external DC supply. See Related and
Recommended Products below for compatible 24 and 48 volt DC
power supplies.
The STM24QF-3RE integrated stepper can operate in all of the same
control modes as S models, plus the ability to run a Q program stored in
non-volatile memory. Q programs are created using Applied Motion’s
Q Programmer™
software, which provides powerful commands for motion, I/O, conditional
processing, multi-tasking, math functions, and more. All STM24
integrated steppers are setup and configured using Applied Motion’s
ST Configurator™ software.
An integral 1000-line (4000 count/rev) incremental encoder is housed
inside the same enclosure as the drive electronics, providing protection
from dust and debris. The integration of the encoder means the stepper
can perform special functions not available otherwise. 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 actually prevents
stalling of the step motor by dynamically adjusting motor speed to
maintain synchronization of the rotor to the stator. This unique feature
allows step motors to operate in a much broader range of applications
than previously available to step motors, such as torque-control
applications. The Stall Prevention feature also performs static position
maintenance, which maintains the position of the motor shaft when at
rest.
The STM24QF-3RE comes with 4 digital I/O points, called Flex I/O
points, because each point can be individually defined as an input or an
output. As inputs, the Flex I/O points accept signals of 5-24 VDC and
can be used for connecting pulse & direction signals, end-of-travel
limit switches, jog switches, quadrature encoder signals, PLC outputs,
sensors, or many other signal types. When defined as digital outputs,
the Flex I/O points can be connected to PLC inputs, counters, lights,
relays, or other devices. The unit also comes with 1 analog input that
accepts 0-5 VDC signals, which can be used for velocity and position
control.
The STM24QF-3RE comes with an RS-485 port for programming and serial communications.