Non-Switching Driver

Optimal driver for applications measuring small signals that detest ON/OFF noise

Features

• Stable rotation within a wide speed range.
• High-responsive current control.
• Noiseless non-switching operation.
• Increased PLL control range.
• EU RoHS compliant.
• Compact size : 43% volume, 77% mass compared with the existing "NS35"

Specification

Type		NS20
Applied Motor		Three-phase synchronous motor *1
Applied Encoder		Incremental encoder (Max.5MHz) *1
Power	Main Power	±24V (8A)
	Control Power	5V (1A), ±15V (0.2A)
Control	Output Current	Max.8A peak (Continuous 5A peak) *2
	Output stage	Non-switching (linear) inverter Sin-wave current control
	Control mode	PLL (Phase-Locked Loop) control Synchronization with clocking (line driver) Pulse frequency dividing function *3 Torque (current) control Analogue voltage dispatching (±10V)
	Input	Rotation & direction command, resetting, etc.
	Output	Encoder pulse (A,B,Z phase), PLL locking, Motor stop, Alarm etc.
	Rotation inconsistency	0.001% and below *4
	Abnormality detection	The following are displayed at 7segLED Emergency stop (Air pressure abnormality) Initial operation time-out Rotation direction abnormality Over-speed Motor overheat Driver overheat Power abnormality
	When abnormality occurs	Dynamic break (Built-in circuit)
Ambient environment		Temperature:0 -40 °C Humidity:85% and below (make sure there is no dew) Do not place the product in a harmful environment such as corrosive gas, metal powder, water, or oil, etc. for electric circuit.
Storage temperature		−20 - 85°C (Make sure there is no dew)
Mass		2kg
Dimensions		150mm × 91mm ×202mm (screws, connectors, or other protrusions not included)

*¹ Application is to be judged for each product.

*² The value is at the time of compulsory air cooling.

*³ Used when dividing precision of encoder pulse is insufficient.

*⁴ It could be 0.001% depending on load or rotation speed.

Specifications and dimensions are subject to change without notice.