Datasheet

Thank you for purchasing Geckodrive’s GR214V motor control. The GR214V is a from-the-ground-up stepper motor controller
design and uses multiple proprietary techniques to run a stepper motor smoother, quieter and with more power than other
drives in its price range. This document seeks to quickly get your GR214V up and running and will explain each new feature and
its utility for your application. Let’s begin:
KEY NEW FEATURES OF THE GR214V:
1.) Form, fit, and function compatibility with IM483 and IM805 applications.
The GR214V was designed as a drop-in replacement for the discontinued IM483 and IM805 stepper motor
controls. Dimensions and pinout are identical, but with the numerous technological advantages of a modern
stepper drive.
2.) Cooler running temperature
Upgraded and over-rated power section components reduce heating by up to 30% compared to previous
revisions.
3.) Next-generation resonance compensation.
Midband instability and resonance is compensated for using all new algorithms, eliminating resonant frequencies
at the midband completely, with no adjustment necessary. The GR214V will run a motor smoothly out of the
box.
4.) Extra resolution choices.
Ranging from half-step to 256-microstep resolution, a stepper motor can be run with resolution of up to 51,200
pulses per revolution. Backwards compatibility with decimal resolution motor controls, such as our G203V and
G201X, allow for minimal parameter changes in software and programs.
Binary Decimal
Resolutions Resolutions
2
5
4
10
8
25
16
50
32
125
64
250
128
256
5.) Push Button Self-Test.
Testing and tuning stepper motors can now be done simply with an onboard self-test button. Simply pushing and
holding this button down will run the motor CW and CCW at low speed, allowing easy tuning for motor
resonance with the onboard adjustment trimpot.
6.) Resolution upscaling at low speeds.
Every microstep is further broken down into higher interpolated microsteps to increase motor smoothness at
extremely low speeds. The resolution upscaling will change depending on the microstep resolution chosen via
DIP switch to be sure your motor is getting the smoothest possible operation at all times.
7.) User adjustable standby current.
If the onboard DIP switch is used to set phase current the user can adjust a trimpot for holding torque from 0% -
100% current in standby mode. If an external resistor or voltage is used the user may use a second resistor to set
standby current, allowing full customization on multi-axis applications.