Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Product Introduction
When a servo axis depends on a legacy motion network, replacing the drive requires more than matching its current rating. The Kollmorgen S20330-SRS combines digital servo control with a low-voltage DC power stage and a SynqNet interface, making it suitable for compatible machine architectures that rely on coordinated motion control.
Part of the S200 family, this drive provides velocity and torque operating modes, electronic gearing, high-resolution feedback support, and a high-bandwidth current loop. For maintenance teams keeping established automation equipment in service, the key purchasing priority is to preserve the original network interface, motor-feedback arrangement, and control configuration—not simply to find another drive with similar output specifications.
S20330-SRS
S20330-SRS
S20330-SRS
S20330-SRS
S20330-SRS
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Kollmorgen |
| Model | S20330-SRS |
| Series | S200 |
| Product Type | Digital DC servo drive |
| Motor Bus Supply | 20–90 VDC |
| Control Logic Supply | 10–90 VDC |
| Continuous Output Current | 3 A RMS |
| Peak Output Current | 9 A RMS |
| Peak Current Duration | 3 seconds |
| Current Loop Bandwidth | Up to 5 kHz |
| Velocity Loop Bandwidth | Up to 800 Hz |
| Analog Command Input | 0 to ±10 VDC, 18-bit resolution |
| Motion Network | SynqNet |
| Network Connector | RJ45 |
| Feedback Support | Smart Feedback Device and Hall-effect feedback |
| Feedback Resolution | Up to 24-bit SFD feedback, depending on the supported feedback configuration |
| Effective Carrier Frequency | 31.2 kHz |
| Mounting | Compact panel-mounted drive |
| Approximate Dimensions | 152.4 mm high × 48.3 mm wide × 101 mm deep, excluding connectors |
| Approximate Weight | 0.5 kg, reported in secondary technical listings |
The dimensions above reflect the S200 DC drive configuration with the SynqNet option; connector clearance must be included in the cabinet layout. Confirm the applicable manual and motor specifications before finalizing the electrical design.
Field Application & Technical Pitfalls
Application Scenarios
1) Precision servo positioning
The S20330-SRS can control compatible servo axes requiring regulated torque or velocity. Its digital control architecture and feedback support make it suitable for positioning equipment where command response and repeatability matter.
2) SynqNet-based motion systems
The SynqNet interface connects the drive to a compatible motion controller within an established network architecture. In coordinated machines, preserving the original network configuration is essential for predictable command exchange and motion synchronization.
3) Legacy machine maintenance
For equipment designed around the S200 drive family, a verified replacement can help avoid a larger motion-control retrofit. Confirm the exact model suffix and original parameter set before removing the existing drive.
Three Replacement Pitfalls to Avoid
Pitfall 1: Substituting a similar S200 model
The S200 family includes different voltage and current ratings as well as different interface options. An S20330-VTS or S20330-SDS, for example, should not be treated as automatically interchangeable with the S20330-SRS. Verify the full designation and network connector arrangement.
Pitfall 2: Ignoring the DC supply range
The S20330-SRS is a DC-input drive. Its motor bus operates within the specified 20–90 VDC range, while the control logic has a separately specified supply range. Applying an AC supply directly to the DC bus is not an acceptable substitution.
Pitfall 3: Overlooking motor feedback and network compatibility
Confirm that the motor’s feedback device is supported and that the host motion controller can communicate with the SynqNet interface. Also verify the motor’s current requirements, commutation arrangement, and stored drive parameters before commissioning.
Field example: A replacement drive may power up correctly but fail to establish communication with the motion controller because the installed system expects a different network option. Checking the complete model code and controller configuration before shipment can prevent unnecessary downtime during installation.
Commissioning Considerations
Before energizing the replacement, compare the original motor and drive documentation. Verify DC bus polarity, control power, motor wiring, feedback connections, protective grounding, and network cabling. Restore parameters only after confirming that they match the replacement hardware and motor.
Do not assume that a successful power-up confirms safe servo operation. Commissioning should include the required enable, feedback, fault-response, and motion checks under the machine’s approved safety procedures.
Quality Control (QC) SOP & Transparency
- Model verification: Confirm the complete S20330-SRS label, including the SynqNet option and any additional revision markings.
- Physical inspection: Examine the enclosure, connectors, terminals, and accessible surfaces for damage, corrosion, or signs of improper handling.
- Condition confirmation: Identify the specific unit as new original, new surplus, or refurbished before order confirmation.
- Electrical compatibility review: Check the DC bus supply, control logic supply, motor current requirements, and grounding arrangement against the target application.
- Interface verification: Confirm the SynqNet connection, supported feedback device, and host motion controller requirements.
- Functional testing: Where compatible test equipment and a suitable motor or test setup are available, perform the agreed power-up, communication, and functional checks. Do not claim tests that have not been completed.
- Inspection evidence: Provide available label photographs, condition photographs, and a clear record of the actual testing scope.
- Protective packaging: Use suitable electrostatic-discharge protection and packaging to protect the electronic drive and connectors during transportation.
A one-year warranty may be offered subject to the confirmed order terms. Confirm stock condition, testing scope, and dispatch lead time for the specific unit quoted.
Frequently Asked Questions
Q1: What is the Kollmorgen ?
It is an -series digital DC servo drive with a SynqNet motion-network interface, designed for compatible servo motor control applications.
Q2: What is its rated continuous output current?
The specified continuous output current is 3 A RMS, with a peak output current of 9 A RMS for up to 3 seconds.
Q3: What input voltage does the require?
The motor bus requires 20–90 VDC. The control logic supply is specified separately at 10–90 VDC. Confirm the installation manual and actual wiring requirements before connection.
Q4: What does the SRS suffix mean?
The SR option identifies the SynqNet interface with RJ45 connectors, while the final S indicates Smart Feedback Device support.
Q5: Can it replace an S20330-VTS or S20330-SDS?
Not automatically. The interface options differ, and the existing controller, network, and motor-feedback configuration must be checked before selecting a substitute.
Q6: Does this drive provide power directly from an AC supply?
No. The is a DC-input model. Use a power arrangement that meets the manufacturer’s DC bus and control-supply requirements.
Q7: What information should I provide for a quotation?
Provide the complete model number , quantity, preferred condition, and a photograph of the nameplate. If replacing an installed drive, also provide the motor model, feedback type, DC supply specification, and motion-controller or SynqNet configuration where available.
