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For Industrial Equipment (E.G., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/Volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
Max Speed (Motor Dependent)
5,000 rpm
Delivery Time
3-5Workdays
Modbus RTU
Standard (RS-485 port)
Shipping Term
International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/Sea Freight / Air Freight / International Special Line
For Industrial Equipment (E.G., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/Volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
Max Speed (Motor Dependent)
5,000 rpm
Delivery Time
3-5Workdays
Modbus RTU
Standard (RS-485 port)
Shipping Term
International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/Sea Freight / Air Freight / International Special Line
The Delta ASDA-E3 750W Servo Drive (ASD-E3-0721-L) is the most popular power rating in Delta's economy servo family, delivering the optimal balance of performance, power, and price for mainstream industrial automation. With 2.5 kHz bandwidth, single/three-phase 220V input flexibility, and full compatibility with ECM-E3/E2/B3 motors, this drive handles a broad range of positioning and speed-control tasks. From conveyor tracking to packaging machinery and feeder systems, the 750W E3 provides dependable servomotor control with simplified wiring, auto-tuning, and advanced vibration suppression — all at a price point that makes upgrading from stepper motors a clear business decision.
Product Highlights
2.5 kHz High Response — 13% faster settling time vs. previous generation for precise stop-and-go motion
Single or Three-Phase Power — Flexible input configuration adapts to most factory electrical supplies
25% Smaller Footprint — Compact design saves panel space for multi-axis machine builds
5 Auto-Tuning Notch Filters — Automatically detects and suppresses mechanical resonance for smoother operation
Pulse + Analog Dual Control — Simultaneously accepts pulse train position commands and analog speed/torque signals
USB & RS-485 Connectivity — Easy commissioning via Delta ASDA-Soft software or PLC integration via Modbus
Broad Motor Ecosystem — Compatible with ECM-E3, E2, and B3 motors in 400W-750W range
Proven Reliability — Built on Delta's mature B3 platform with millions of units in global field service
Specifications & Models
Parameter
Specification
Model Number
ASD-E3-0721-L
Series
ASDA-E3 (Basic Economy Type)
Rated Power
750 W
Input Voltage
Single-phase / Three-phase 200-230 VAC (-15% to +10%)
Q1: What applications is the 750W E3 best suited for?
The 750W E3 excels in conveyor tracking, rotary indexing, feeding, and simple pick-and-place applications. It's the ideal step up from stepper motors when you need higher speed, smoother motion, and closed-loop accuracy without the cost of premium servo series.
Q2: Can the 750W E3 operate on household 220V single-phase power?
Yes, the 750W model accepts both single-phase and three-phase 200-230 VAC input, making it versatile for both small workshop installations and industrial three-phase environments.
Q3: Does the built-in regenerative resistor need external cooling?
The internal regenerative resistor is designed for typical duty cycles. For applications with frequent high-speed deceleration or large inertia loads, monitor the regenerative load ratio via ASDA-Soft — if it exceeds 80%, add an external resistor.
Q4: How many digital I/O points are available?
The E3 series provides a streamlined I/O set compared to the B3/A3: typically 5 digital inputs (configurable) and 3 digital outputs, plus 2 analog inputs. This covers most basic positioning and speed-control needs.
Q5: Can I control the E3 drive via Modbus RTU from a PLC?
Yes, RS-485 Modbus RTU is standard. You can read/write parameters, monitor status, and even command position/speed moves directly from a PLC or HMI over the Modbus interface.
Q6: Is this a good replacement for older Delta ASDA-B series drives?
Yes — the ASDA-E3 was specifically designed as the direct replacement for the discontinued ASDA-B series. It offers higher bandwidth (2.5 kHz vs. 0.5 kHz), 25% smaller size, and improved vibration suppression while maintaining similar wiring and control interfaces.
Q7: What is the factory default pulse input type?
Factory default is Pulse + Direction (Line Driver). This is configurable to CW/CCW pulse or A/B quadrature phase via parameter P1-00. Always verify your controller output type before wiring.
Q8: Does Delta provide CE-certified motor cables for the E3?
Yes, Delta offers pre-assembled shielded motor power and encoder cables in standard lengths (3m, 5m, 10m, 20m) with CE-compliant connectors. Using genuine Delta cables ensures EMC compliance and reliable encoder communication.
