Applications: Speed and velocity irregularity measurement of motor and load

- When designing equipment using motors, it is important to more accurately capture the speed variation caused by the load.
- The F/V converter can measure the speed variation of the drive motor. (Figure A below)
- By using two F/V converters, it is possible to verify the tracking between the rotational speed of the drive motor and the rotational speed of the load. (Figures A and B below)
- KAZ-723A has a deviation output function, which enables measurement of speed irregularities during constant speed rotation. (Figure C below)
- The KAZ-723A responds to calculations and analog outputs within 5 µs, allowing detailed confirmation of speed fluctuations.

Motor Side Rotary Encoder	→	[A]	→	[A] Motor side Rotation speed
		KAZ-723A
Load-side Rotary encoder	→	[B]	→	[B] Load side Rotation speed
Load-side Rotary encoder	→	[C]	→	[C] Load side Uneven Rotation Speed

What we can do with measurement
- Starting and stopping conditions on the drive side/load side
- State of speed variation by load
- Delay time of the load side relative to the drive side
- Speed irregularity during constant speed rotation
- Time required for a series of operations

Selection Points
Speed measurement
High-speed F/V converter with one-pulse response

Speed irregularity measurement
F/V converter with ΔF (deviation) mode/ΔF auto (deviation auto tracking) mode function

Sensing
High resolution rotary encoder

Products

Products		Points	Overviews
	KAZ-723A Product page		- F/V converter for analysis. One-pulse response F/V converter with ΔF function. - Input frequency: 0.04Hz to 200kHz, 1-pulse response, for FFT preprocessing and rotational analysis.
	KAZ-Mighty Product page		- F/V converter for analysis, capable of 2-phase signal (A/B phase) input. - Input frequency: 0.23Hz to 250kHz, 1-pulse response. - Equipped with ΔF function and ΔF AUTO (automatic deviation tracking). Center value can be automatically set when measuring speed irregularities at steady-state speeds.
	KAZ-Mighty2 Product page		- 2ch F/V converter for analysis, 2-phase signal (A/B phase), 2ch input. - Input frequency: 0.23Hz to 250kHz, 1-pulse response. - Equipped with ΔF function and ΔF AUTO (automatic deviation tracking) function. Center value can be automatically set when measuring speed irregularities at steady-state speeds.
	Rotary Encoders Product page		- Rotary encoder manufactured by Micro-tec Laboratory, Inc. - A wide variety of variations such as ultra-compact, hollow, robust, and thin types are available. - Lineup includes a wide range of shapes from 5 mm to 100 mm in diameter, optical types for high-precision detection, and low-cost magnetic types. - Incremental encoders are a good match for Coco Research products.