Features
(cont’d)
Short circuit protection circuitry - latches the drive off and
lights the POWER FAULT LED if a short circuit occurs on
the motor outputs.
Optical isolation circuitry - isolates the user signals from the
drive power circuits for the step, direction, enable, and reset
command lines.
User
adjustments
Mid-range instability control - eliminates loss of torque and
possible motor stalling conditions when operating at
mid-range speeds. This instability is a phenomenon of the
electronic, magnetic, and mechanical characteristics of a
stepping motor system. The enabled function damps
mid-range oscillations by advancing or delaying the switching
of the output transistors relative to the incoming pulse train.
Step size - sets the amount of shaft rotation per step. The
five settings range from full step to fractions of a full step
(microsteps). The microstep settings range from 1/2 to 1/125
for up to 25,000 steps/revolution with a standard 1.8
o
stepper
motor.
Idle current reduction (ICR) - reduces motor winding current
by 50% during motor dwell periods. ICR begins one second
after the last input step pulse occurs.
Current setting - sets the current supplied to the motor. The
available RMS current settings are 5, 6, 7.5, and 8 amps.
1 - 2
5630 Installation and Hardware Reference Manual
Rev E