Digital ES（Discontinued）

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Jan.12.2017
Information on Discontinuation of ES Motor, Controller Series
Thank you for your many years of loyal patronage. Our ES motor and controller series were discontinued in September 2016.
As replacement models for future equipment updates or new applications, we recommend the servo amplifiers in ALPHA 5 series or ALPHA 5 Smart series.

Economical, Simple Servo System Digital ES Series

Features

Auto-tuning function
No potentiometer adjustment is necessary.The servo system automatically accelerates/decelerates in shortest time by responding to changing load conditions.
Control function
Velocity control range is 1:1000. The motor stop status can be selected among "velocity 0", "servo lock" and "external brake."
Compatible with general-purpose motors
The shaft ends and mounting dimensions of the K series motors are identical with those of general purpose motors. The maximum torque settings of K-series motors are restricted at 150%, which allows the K-series motors to be replaced with general-purpose motors without requiring any modifications to the existing mechanical systems.

Power and Model Variation

Rated input AC voltage

Three-phase 200V	200V/ 50Hz
	200～230V/ 60Hz

Allowable input power variation
Voltage : +10%　/　-15%
Frequency : ±5%
Voltage unbalance : 3% or less
Capacity range
GRK type : 0.05 to 3.7kW (a group of 9 models)

Outline Specifications

Amplifier

Type		RYE□□□D
Feedback		Encoder built-in motor, 1000pulse/rev (open collector)
Control accuracy	Load variation	±1r/min or less (0 to 100%)
	Power supply variation	±1r/min or less (+10 to -15%)
	Temperature variation	15r/min or less (-10 to +55℃)
Speed control range		1:1000
Frequency response		0 to 50Hz (on condition that JL=JM)
Overload capability		150% for 60s
Control modes		Velocity control, position control, and torque control
Velocity control	Velocity control voltage	±10V/±2500r/min
	Soft start	0 to 1s or 0 to 3s (0 to 10s or 0 to 30s depending on the switch setting)
	Stop control	Selectable from velocity 0, position lock (servo lock) and external braking
Position control	Position command pulse	1. Command pulse/command code 2. Forward/reverse pulse 3. Dual signals with 90-phase angle
	Maximum input frequency	100kHz
	Stop control	Position lock (servo lock)
Protective functions		Overload, DB resistor overheating, excessive deviation, excessive speed, overvoltage, encoder fault, control power supply fault, memory error, main circuit fault

<Motor>

Type	GRK2□□□*
Rated/maximum speed	2000/2500r/min
Rating	Continuous
Installation	Foot mounted/flange mounted
Enclosure and cooling method	Totally enclosed, natural cooling *