Owner manual

RMS Technologies Page 5 Version 1.04
IMDP23/IMDEP23 Manual 8/4/2010
1 FEATURES
 NEMA Size 23, 2 Phase, 1.8° Bipolar Step Motor w/ Built-In Microstepping Driver
 Operates from +12 to 75 VDC
 Software selectable run currents from 0.1 to 5.0 Amp Peak (in 0.05 Amp increments)
 Software selectable hold currents from 0 to 5.0 Amp Peak (in 0.05 Amp increments)
 Step Resolutions from Full step, 2x, 4x, 5x, 8x, 10x, 16x, 25x, 32x, 50x, 64x, 125x,
128x, 250x, 256x Microstepping
 Four Selectable Damping modes for smooth motion
 No low minimum inductance (any NEMA 23, 1.8° step motor can be selected)
 Step sensing on the rising or falling edge of step pulse input
 Direction switching – to change first powered on direction of rotation
 Enable active high or low – to allow unit to be enabled with a high or low signal
 Smooth motion
 Three optically isolated control inputs (step, direction, disable)
 Inputs are sinking inputs, maximum current input is 15mAmps
 Pole Damping Technology™ integrated within driver board
Pole Damping Technology™
Pole Damping Technology™ (PDT) enhances step motor performance by dampening each
full step in order to create a more accurate and smooth motion profile. Microstepping the
step motor will optimize Pole Damping Technology™. PDT outputs the correct amount of
run and hold currents to the motor, at the right time. Thus, it will overcome the step
motor’s natural tendency to want to forcefully pull towards the full step ON position.
IMDEP23 – Encoder Features
 32-1250 cycles per revolution (CPR)
 128 to 5000 pulses per revolution (PPR)
 2 Channel Quadrature
 TTL Squarewave Outputs and optional index (3
rd
Channel)
 E2 US Digital Encoder
Default Settings
Default Settings of the IMDP23 or IMDEP23
Direction of rotation
Counterclockwise
Step Resolution
8x step (3200 steps/rev)
Run Current
Motor’s rated current or up to
5 Amps Peak if motor is rated
for 5 or higher.
Holding Current
0.5 Amp/Phase
Smoothness setting
2
Step signal sensing
Senses on the Rising Edge or
positive edge
Disable Active
Low or 0V signal to disable
unit
Table 1: Default settings