Description
Product Overview
The DANAHER S20660-SRS is a high-performance AC servo drive from the Danaher Motion S200 series. It is the SynqNet version of the S20660 drive and is designed to control compatible servo motors in precision motion-control applications.
The S20660-SRS is part of the 240 VAC input S200 drive family. Published Danaher Motion specifications identify the S20660 class with up to 18 A RMS peak output current and 6 A RMS continuous output current at 40°C, making it suitable for higher-power servo applications than the smaller S20260 and S20360 models.
The SRS version uses a SynqNet interface and supports servo-motor feedback through the appropriate feedback interfaces. Current technical references identify support for SFD/Halls and additional feedback configurations through the applicable connectors and option hardware.
Key Features
- Danaher Motion S200 Series servo drive
- Model: S20660-SRS
- SynqNet AC servo drive configuration
- 240 VAC input class
- 18 A RMS peak output current
- 6 A RMS continuous output current at 40°C
- Supports velocity and torque control
- Compatible feedback options include SFD/Halls
- Compact panel-mount construction
- Diagnostic functions for voltage and motor protection
- Suitable for precision industrial motion-control systems
Technical Datasheet
| Parameter | Specification |
|---|---|
| Manufacturer | Danaher Motion |
| Model | S20660-SRS |
| Series | S200 |
| Drive Type | SynqNet AC Servo Drive |
| Input Voltage Class | 240 VAC |
| Peak Output Current | 18 A RMS |
| Continuous Output Current @ 40°C | 6 A RMS |
| Continuous Output Current @ 30°C | 9 A RMS |
| Peak Output Power, 3-Phase | 6 kVA |
| Continuous Output Power, 3-Phase | 2 kW |
| Nominal Motor Shaft Power @ 3000 RPM | 1.5 kW at 0–30°C |
| Feedback Support | SFD / Halls; additional configurations depending on system/options |
| Network | SynqNet |
| Protection | IP20 |
| Operating Temperature | 0–40°C typical specification |
| Storage Temperature | -35 to 85°C |
| Altitude | Less than 1500 m |
| Product Type | AC Servo Drive |
| Condition of Referenced Listing | Used |
The S20660 family specifications show 18 A RMS peak current and 6 A RMS continuous output current at 40°C, while the 30°C continuous rating is 9 A RMS. The published 3-phase continuous output rating is 2 kW.
The S20660-SRS technical reference additionally lists 120/240 V input, 18 A RMS peak current, 6 A RMS continuous current, IP20 protection, and a 0–40°C operating range.
Servo Control Function
The S20660-SRS is designed to regulate the operation of a compatible servo motor by controlling motor current and coordinating the commanded motion with feedback from the motor.
Depending on the application, the drive can be used for:
- Velocity control
- Torque control
- Precision positioning
- Acceleration and deceleration control
- Motor feedback processing
- Coordinated motion through a SynqNet network
The drive’s feedback system allows the controller to monitor motor position and operating conditions. Correct motor, feedback device, drive configuration, and network setup are essential for stable servo operation.
SynqNet Communication
The S20660-SRS is specifically identified as a SynqNet AC drive. This differentiates it from standard S200 drive configurations.
A typical system architecture can be represented as:
Motion Controller → SynqNet Network → S20660-SRS → Servo Motor → Feedback → Drive / Controller
The exact network configuration depends on the motion controller, SynqNet hardware, motor, feedback device, and application software.
Protection & Diagnostic Functions
The S20660-SRS incorporates diagnostic and protection functions intended to protect the drive and connected motor.
Published technical information identifies functions including:
- Control under-voltage detection
- DC bus over-voltage detection
- DC bus under-voltage detection
- Motor short-circuit protection
- Line-to-neutral motor protection
- Line-to-line motor protection
- Line-to-PE protection
These functions can assist with troubleshooting drive faults and abnormal motor conditions.
Mechanical Information
The S20660-SRS uses a compact panel-mount enclosure.
Danaher Motion’s reference manual gives the S20660-SRS a width of approximately 2.52 in (64.0 mm). The associated S200 SynqNet mechanical drawing shows approximately 5.18 in (131.57 mm) in the other principal dimension and 6.89 in (175.01 mm) for the side-view height.
Always compare the actual mounting dimensions and connector arrangement before replacing an existing drive.
Typical Applications
The S20660-SRS is suitable for industrial motion-control applications such as:
- Precision automation machinery
- Electronic assembly equipment
- Semiconductor manufacturing equipment
- Pick-and-place systems
- Automated production equipment
- Precision positioning systems
- Multi-axis motion platforms
- Machine tools
- Legacy SynqNet motion-control systems
Technical references specifically associate the S20660-SRS with electronic-assembly applications using compatible AKM servo motors.
Installation & Configuration Guide
1. Verify the Drive Model
Confirm the complete model number:
S20660-SRS
The suffix is important. S20660-SRS is the SynqNet configuration and should not automatically be substituted with S20660-SDS or another S200 drive.
2. Check Motor Compatibility
Before connecting the motor, verify:
- Motor model
- Motor rated current
- Motor voltage
- Feedback type
- Feedback connector
- Motor cable
- Brake requirements
- Drive configuration
The drive should only be operated with a compatible motor and correctly configured feedback system.
3. Check the Power Supply
Verify that the machine’s AC supply matches the S200 drive requirements and that protective grounding is correctly connected.
Disconnect and lock out power before wiring or servicing the drive.
4. SynqNet Configuration
For a SynqNet installation, confirm:
- Motion controller compatibility
- SynqNet network connection
- Node configuration
- Drive identification
- Motor configuration
- Feedback settings
- Motion parameters
Network configuration should be performed using the applicable Danaher/Kollmorgen commissioning software and system documentation.
5. Initial Power-Up
After installation:
- Confirm wiring.
- Check grounding.
- Verify motor and feedback connections.
- Confirm network communication.
- Power up the system under controlled conditions.
- Check drive diagnostic status.
- Test motor operation at low speed.
- Verify direction and feedback.
- Gradually increase operating speed and load.
Maintenance & Inspection
For a used S20660-SRS, inspect the drive carefully before installation.
Check:
- Front and rear connectors
- Terminal blocks
- Cooling surfaces
- Mounting holes
- Housing condition
- PCB condition where accessible
- Signs of overheating
- Dust accumulation
- Corrosion
- Burn marks
- Connector damage
- Model and revision labels
Keep the ventilation area clean. Excessive dust or restricted airflow can increase internal temperature and shorten component life.
Troubleshooting Reference
| Symptom | Areas to Check |
|---|---|
| Drive does not power up | AC supply, wiring, fuse, grounding |
| Over-voltage fault | DC bus condition, regenerative energy, braking circuit |
| Under-voltage fault | Incoming power and supply stability |
| Motor does not rotate | Enable signal, motor wiring, feedback, configuration |
| Feedback fault | Feedback cable, encoder type, connector |
| Network communication fault | SynqNet cable, controller, node configuration |
| Motor overcurrent | Motor wiring, motor condition, acceleration settings |
| Motor short-circuit fault | Motor cable, motor windings, output stage |
| Excessive heating | Load, ambient temperature, ventilation |
Always investigate the actual fault code and system conditions rather than replacing the drive immediately.
Compatibility Notes
The S20660-SRS is part of the S200 family, but different S200 models have substantially different current and power ratings.
For example, the S20660 is rated higher than the S20360, while the S21260 and S22460 provide still higher output ratings.
When sourcing a replacement, match:
Model + Suffix + Input Configuration + Output Rating + Feedback + Network Configuration
Do not replace an S20660-SRS with a visually similar S200 drive without confirming the complete application requirements.
Pre-Owned Condition
The referenced eBay listing identifies this unit as Used.
As a pre-owned servo drive, the unit may show normal cosmetic signs of previous installation. Before putting it into production service, inspection and functional testing are recommended.
Particular attention should be given to the power section, connectors, cooling condition, feedback interface, and SynqNet communication.
Product Identification
Manufacturer: Danaher Motion
Model: S20660-SRS
Series: S200
Product Type: SynqNet AC Servo Drive
Input Class: 240 VAC
Peak Output Current: 18 A RMS
Continuous Output Current: 6 A RMS @ 40°C
Network: SynqNet
Condition: Used
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