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  7. 2-axis Pulse Train Positioning Motion Unit

Programmable ControllerKV-8000 series

2-axis Pulse Train Positioning Motion Unit



Select Language




Positioning/Motion unit

Number of control axes

2 axes

Built-in device

Relay: 896 points (56 ch), Data memory: 54 words (high speed)/402 words (simple)

Output format

Differential line driver output (switchable among 1-pulse method, 2-pulse method, and A/B-phase method)

Connectable CPU units


Max. output pulse

4 MHz

Control mode

Position control

Control period

1.0 ms

External interface

Input: Photocoupler input, Output: Open collector output (30 VDC 50 mA)

Input time constant

Each input is set in 11 stages for each block

Axis control function execution method

Ladder program, motion flow

Motion flow

Program capacity

768 KB

Max. number of blocks

A total of 256 blocks in all flows

Max. number of flows


Number of simultaneous activities

Number of connectable axes × 2

Position unit

mm, deg (angle), PLS (pulse count), decimal point position from 0 to 9 digits, unit conversion function available

Cumulative address

-2,147,483,648 to +2,147,483,647 instruction units

Positioning control

Positioning mode

Absolute value/relative value

Position setting range

-2,147,483,648 to +2,147,483,647 instruction units


Straight-line interpolation (up to 16 axes), arc interpolation, helical interpolation

Single operation address

-2,147,483,648 to +2,147,483,647 instruction units

Acceleration/deceleration curve

Straight-line, SIN, Bezier

Acceleration/deceleration time

0 to 65,535 ms

Start-up time

Independent: 500 to 600 µs, Interpolation (straight-line 2 axes): 600 to 700 µs, Interpolation (arc 2 axes): 700 to 800 µs,
Interpolation (helical 3 axes): 800 to 900 µs (only for KV-MC40V) (When the 1st axis is activated)
Zero start: Input time constant +2 µs, Direct cache start: Max. 8 µs


1 to 65,000, WITH/AFTER mode

Sensor positioning

External input - based switching control from speed to position

Number of points

800 points/axis

Synchronisation control


Counter (KV-MX1 required), instruction coordinates, current coordinates (KV-ML16V only)


Select from direct, slide, and follow-up


Resolution: 2048 to 32768, Amount of data: 4 to 64 (Number changes according to the resolution)

Contact output

16 points (including 8 external output points) × 2

Correction during operation

Correction via auxiliary input, phase correction, and lead angle correction

Fine control

Fine data work area

8 MB

Built-in ROM capacity

512 KB

Number of settings

Built-in ROM: 100, SD memory card: 1000

Data capacity of one setting

Built-in ROM: 512 KB, SD memory card: 8 MB (KV-MX1 is required)

Origin return

Origin return method

Origin sensor edge/midpoint, push origin return, Dog type ("With Z phase" or "Without Z phase" can be selected), data set type, no limit switch

Speed control

Speed instruction range


Torque control

Torque instruction range


Inching (The number of pulses can be specified), JOG (high speed/low speed)


Current coordinate teaching and teaching from the counter current value are supported

Memory data

Point parameters 800 points (each axis), synchronisation parameters (each axis), fine setting (built-in ROM: 512 KB, expandable with a SD card),
cam data motion flow setting, etc. can be read and written during RUN (with some restrictions)

High-speed counter

When KV-MX1 is connected: INC 4 ch/ABS Grey, residual Grey, binary 2 ch (switched, based on settings), Max. 6.4 MHz (2-phase, 4 multiplication)

5-V power output

5 V ±5%, Max. 100 mA (total value)

Output display

Error status/Pulse output status

Self-diagnosis function

Diagnosis can be made through hardware error, various parameter errors, error number, and error messages

Parameter setting

Parameters can be set from KV-HPD1, “KV STUDIO,” and ladder programs

Data backup

Coordinates and error/warning history backup, parameter settings backup via flash ROM, 100,000 times switching

Internal current consumption

Main unit: 120 mA or less, external I/O: 80 mA or less


Approx. 170 g

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