Instruction Manual

RMS Technologies Page 5 Version 1.00
IMD34 / IMDE34 User Manual 4/28/2009
1 FEATURES
• NEMA Size 34, 2 Phase, 1.8° Bipolar Step Motor w/ Built-In Microstepping Driver
• Operates from +24 to 75 VDC
• Selectable phase currents from 0.5 to 7.0 Amp Peak (in 0.1 A increments)
• Selectable hold currents from 0.0 to 7.0 Amps (in 0.1 A increments)
• Hold current delay time from 0.5 seconds to 6.0 seconds
• Step Resolutions include: Full step, 2x, 4x, 8x, 16x, 32x, 64x, 128x, and 256x
microstepping
• Three Selectable Damping modes (Fast decay, mixed decay of 25% and 75%)
• Step sensing on the rising or falling edge of step pulse input
• Direction of rotation enables user to start rotation CW or CCW
• Three optically isolated control inputs (step, direction, disable)
• Sinusoidal current waveform to provide smooth motion
• 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.
IMDE34 – Encoder Features
• 32-2500 cycles per revolution (CPR)
• 128 to 10000 pulses per revolution (PPR)
• 2 Channel Quadrature
• TTL Squarewave Outputs and optional index (3
rd
Channel)
• Compatible with E2, E5, E5D, or E3 US Digital Encoder
Default Settings
Default Settings of the IMD34 and IMDE34
Direction of rotation
Counterclockwise
Step Resolution
8x step (3200 steps/rev)
Run Current
Motor’s rated current or up to
7 Amps Peak if motor is rated
for 7 or higher.
Holding Current
2.5 Amps
Damping Mode
75% mixed decay
Step signal sensing
Senses on the rising edge
Delay time from run
to hold current
0.7 Seconds
Table 1: Default settings