KStep 4-Axis Microstepper Amplifier for KFLOP
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Check our YouTube channel to see what other users have done.
Please view our on-line documentation for full details.
What is KStep?
KStep is a KFLOP expansion board designed specifically for plug-and-play stepper motor control. With only a motor power supply, stepper motors and the KFLOP+KStep you have all you need to start controlling 4 motors (or 8 with 2 KSteps).
This ease-of-use also comes with high performance, high efficiency, and additional 12-24V isolated I/O expansion sufficent for most applications. Although it is possible to use third-party stepper or servo drives with our KFLOP controller, KStep provides complete connectivity with a single ribbon cable connection, easily mounts to KFLOP with standoffs, and gets the most out of our software. In addition, KStep's ultra low resistance MOSFETS eliminates the need for special cooling and heat sinking. This setup reduces cabling and wiring and puts everything you need into a nice footprint. KStep really is a culmination of many customer requirements in one expansion board.
Highlights
- Quad 240W Microstepper Amplifer
- Plug-n-Play with KFLOP
- 16X Microstepping
- 5A @ 48V Max
- Super High Efficiency 17 milliohm MOSFETS
- Opto Isolation
- Mixed Current Decay
- 500K steps/sec
- Regenerative Voltage Clamping (1KW peak)
- Includes 1 Opto Isolated Analog Output
- Includes (16) 12-24V Opto Inputs
- Includes (2) 30v @ 0.1A Opto Isolated Drivers
Example Applications:
- Most anything using 200+W Steppers
- CNC machining:
- Mills
- Lathes
- Brakepresses
- Grinders
- Spinners
- Routers
- Saws
- Robotics
- Automation
- Camera Control
- Pick-and-place
- Data Acquisition
Example Input/Output devices:
- Size 23 Stepper Motors
- Stepper Motors greater than 5A are ok, but current is limited at 5A which is generally not a problem
- Simple sinking 24V Limit and Home Switches
- Spindle controls with 0-10V analog input
Not to be used with:
- Supply voltages lower than 12V and higher than 48V
Basic KStep Setup
Need to get up and running with KStep fast? View this high-level explanation of a basic KStep setup:
And read this KStep Basics Tutorial to help you get started.
KStep Block Diagram
KStep Hardware Breakdown
| Parameter | Specification |
|---|---|
| Micro Stepper Drivers | |
| Type | Bipolar Dual Full Bridge Chopper Drivers |
| Number | 4 |
| Microstepping | 16X |
| Supply Voltage | 12-48VDC Common |
| Motor Coil Current | Jumper Programmable 8 levels (0.6 - 5A) |
| Max Step Rate | 500KHz |
| Logic Inputs (Step,Dir,Enable,Relay PWM,MuxCtrl) | |
| Voltage | 3.3V LVTTL (2.4V min High 0.4V max low) |
| Current | 16ma max |
| Analog | |
| Number | 1 fully Isolated |
| Input Supply Range | 5-30V |
| Output Impedance | <1K ohm |
| Response, Tau | 10ms |
| Inputs | |
| Type | Opto Isolated Common Anode |
| Number | 16 |
| Internal Series Resistor | 10K ohm |
| Min On Voltage | 11V |
| Max Allowed Voltage | 25V |
| Max Off Voltage | 1.0V |
| Outputs | |
| Type | Opto Isolated |
| Number | 2 |
| Type | Opto Isolated Darlington |
| Max Voltage | 30V |
| Max Current | 100ma |
| Voltage Clamp | |
| Power peak | 1KW |
| Power Average (3 sec) | 10W |
| Levels | Jumper Programmable (13V, 25V,37V,49V) |
| 5V Logic Supply | |
| Voltage | +5V ± 5% |
| Max Current | 0.05 A |
| 3.3V Logic Supply | |
| Voltage | +3.3V ± 5% |
| Max Current | 0.05 A |
| Terminal Strips | |
| Screw Terminals | 24 Pluggable Screw Terminals (6) x 4 pin 5mm pitch |
| Environment | |
| Operating Temperature | 0-40º C |
| Storage Temperature | 0-40º C |
| Humidity | 20-90% Relative Humidity, non-condensing |
| Dimensions | |
| Length | 5.5 inches (140 mm) |
| Width | 6.0 inches (151 mm) |
| Height | 1.0 inches (24 mm) |
| Green | |
| RoHS | Compliant |
See also: