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Kanalog without KFLOP

Kanalog Expansion Board for KFLOP

Kanalog is an expansion board for KFLOP that adds six types of powerful I/O - enough to control a complete system such as a mill or router, in many cases. It's these capabilities that make Kanalog our most popular expansion board for KFLOP.

After examining a number of typical CNC control applications, Kanalog was designed to meet the requirements that we encountered the most. Many systems with obsolete controls can be retrofitted with the state-of-the-art trajectory control and user interface provided by the KFLOP+Kanalog combo with minimal cost while taking advantage of existing amplifiers and motors.

In addition, Kanalog was designed specifically to interface to analog servo drives with +/-10V analog input commands for either torque or velocity. It provides an interface for differential encoder inputs, optical inputs (typically home/limits), optical outputs (typically amplifier enablers, spindle control, coolant, etc...). Relay Outputs, and Digital IO.

Kanalog easily connects to the KFLOP (see pictures) and comes connected when purchased together. Only two simple connectors and four screws are required to mount the KFLOP onto the Kanalog expansion board.

Once connected, Kanalog uses the +5V it receives from KFLOP to generate +/- 15V on-board so that no other power supply is required. Kanalog's footprint with 112 screw terminals, which are pluggable, make wiring easy.

This KFLOP+Kanalog combo provides the most compact, low-cost, high-performance control package available. Unlike other systems with PWM or Step/Dir to Analog circuits, Kanalog includes true digital to analog converters with low ripple and fast response.

Kanalog is the most popular of the KFLOP expansion boards for its capability in incorporating the needs of a complete system. Those who are retrofitting mills and routers with existing analog servo drive find the Kanalog expansion board especially useful.

For CNC applications use our KmotionCNC software with your KFLOP+Kanalog and get highly advanced data capture capabilities to fully understand how the system is performing in terms of following error, speed, output, response, bandwidth, etc.
$299 USD Plus Tax, S&H
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Check our YouTube channel to see what other users have done.

Please view our on-line documentation for full details.

Example Input/Outputs:
  • Analog Motor Amplifiers
  • Relays
  • Switches
  • Encoders
  • Analog Sensors

Example Applications:

  • CNC machining
    • Mills
    • Lathes
    • Brakepresses
    • Grinders
    • Spinners
    • Routers
    • Saws
  • Robotics
  • Automation
  • Camera Control
  • Pick-and-place
  • Data Acquisition


Kanalog works with many different Input/Output devices:

Kanalog 1.0 Hardware





DAC Outputs



ADC Inputs

(8) ± 10V  @ 10ma, recommended load >2Kohm

12 bit - update rate 11.1KHz all 8 channels


(8) ± 10V 100Kohm input Impedance

12 bit - update rate 11.1KHz all 8 channels


Opto Isolated Outputs


Opto Isolated Inputs

(8) Max differential voltage 80V  25ma


(8) 3-24V input, internal 10KOhm series resistor

Differential Differential Input Receivers


±7V common mode range, 200mv sensitivity

Internal 470ohm termination

Relay Drivers N channel FET Switches

(8) 24V @ 1 Amp max

Open Drain switches to ground

Digital I/O GPIO - LVTTL

(8) Outputs Source/Sink 12ma

(8) Inputs LVTTL, 3.3V 1µa max


On-board DC-DC Generator

2 Watts (70ma each supply)

RS232 Driver/Receiver


Terminal Strips Screw Terminals

112 Pluggable Screw Terminals

(7) x 16 pin

5mm pitch

Watchdog Charge Pump

DSP communication enables

(1) Relay Driver, FET Switch 24V @ 1A


Logic Supply


Typical Current

+5V ±10%

0.5 A


Operating Temperature
Storage Temperature

0-40° C

0-40° C
20-90% Relative Humidity, non-condensing





8.5 inches (216mm)

7.0 inches (178 mm)

0.75inches (19 mm)

Green RoHS Compliant

See also:

Kanalog Hardware/Connectors

Board Layout

Kanalog Use and Settings  

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