KStep 1.2 Hardware

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 0-40 C
Storage Temperature 0-40 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