Description
Product Overview
The Yokogawa SR1030B62 is identified in available equipment records as a Dynaserv direct-drive servo actuator used for precision rotary motion applications. The SR1030B62 is associated with a 230 VAC, 50/60 Hz electrical configuration, and current product records classify it as a discontinued servo actuator. The direct-drive arrangement is significant: the actuator is intended to transmit rotary torque directly to the machine mechanism rather than relying on a conventional speed reducer. That architecture can reduce mechanical transmission elements and is particularly relevant to equipment where positioning accuracy and repeatability depend on the original motor/load relationship.
For Yokogawa SR1030B62, the complete suffix matters. Public records also show variants such as SR1030B62-3MN*1C, while other records associate the basic SR1030B62 with a Dynaserv servo-drive system. This means a procurement request based only on “SR1030B62” is not sufficient for a controlled replacement. The feedback device, motor winding, connector arrangement, voltage configuration, and matched amplifier should be compared against the installed unit.
The is best treated as a legacy motion-system component rather than a general-purpose DCS or PLC module. It is relevant to older automated machinery requiring controlled rotary positioning, including precision production and material-handling equipment. Public sources contain conflicting descriptions of this model, so specifications such as torque, rated current, encoder resolution, and exact dimensions should not be accepted from an unverified listing. For a replacement purchase, the physical nameplate and original system documentation should take precedence.
Product Introduction
A direct-drive actuator cannot be replaced safely by matching voltage alone. is documented as a 230 VAC, 50/60 Hz servo actuator, and its direct-drive mechanical arrangement makes motor/load matching a critical commissioning issue.
For a legacy Dynaserv servo replacement, verify the complete suffix, feedback system, amplifier, mounting interface, and machine tuning data before approving an equivalent. The available documentation is limited, so unsupported torque or encoder claims should be treated cautiously.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer / Brand | Yokogawa |
| Model | |
| Product Type | Direct-Drive Servo Actuator |
| Servo Family | Dynaserv |
| Electrical Supply | 230 VAC |
| Frequency | 50/60 Hz |
| Motion Type | Direct rotary drive |
| Mechanical Transmission | Direct drive; no conventional reduction gearbox |
| Feedback | Position/speed feedback; exact configuration requires nameplate verification |
| Application | Precision rotary motion and positioning |
| Product Status | Legacy / discontinued |
| Related Variant | |
| Associated System | Dynaserv servo drive/amplifier |
| Replacement Method | Match complete actuator and drive configuration |
The 230 VAC, 50/60 Hz designation and discontinued status are supported by current equipment records.
Technical caution: I could not locate an authoritative manufacturer datasheet confirming the commonly repeated claims of 30 Nm torque, 4.5 kW continuous power, or a specific encoder resolution for the exact . Those values should therefore not be treated as verified specifications.

SR1030B62-3MN*1C
Related Products
- — A documented variant of the family. The additional suffix should be matched exactly because feedback and electrical configurations may differ.
- SR1008B62 — Related Dynaserv direct-drive actuator used in a smaller motor configuration. It belongs to the same general family but should not be assumed to have identical torque or amplifier requirements.
- SR1015B62 — Another SR-series actuator. Useful for identifying related legacy motion equipment, but not a drop-in replacement without electrical and mechanical verification.
- SR1045B02 — Related Dynaserv actuator family member with a different motor designation. Application matching is required.
- SR1400A2 — Larger direct-drive actuator from the same broader Dynaserv family. Intended for different load and motion requirements.
- DR-1030B-115 — Associated Dynaserv drive designation appearing in equipment records for systems. Verify the exact drive nameplate before pairing.
- DR1008B115 — Related drive for the SR1008B62 configuration. Its motor pairing differs from the system.
- DR-1015B62-115 — Related Dynaserv drive designation for another SR-series actuator. It should not be substituted solely because the model family is similar.
Frequently Asked Questions
What is Yokogawa used for?
The is a direct-drive servo actuator intended for controlled rotary motion.
Its application is fundamentally different from a PLC I/O card or DCS controller. The actuator forms part of a motion-control system in which the servo amplifier, feedback device, mechanical load, and controller operate as a coordinated system.
Available records identify it as a 230 VAC, 50/60 Hz servo actuator.
Is a Yokogawa DCS module?
No.
Although the model is frequently listed under Yokogawa industrial automation equipment, available equipment records identify the as a Dynaserv servo actuator rather than a conventional Yokogawa CENTUM I/O or processor module.
This distinction is important when preparing a replacement quotation.
What voltage does use?
The available product records identify the as 230 VAC, 50/60 Hz.
Do not use this value as the only acceptance criterion. Check the complete nameplate, particularly if the machine documentation identifies a suffix such as .
Can I replace with another SR-series actuator?
Not without a complete motion-system comparison.
Check:
- Rated voltage
- Motor winding
- Continuous and peak current
- Feedback type
- Encoder/resolver configuration
- Shaft and mounting dimensions
- Load inertia
- Required speed
- Required torque
- Servo amplifier compatibility
- Existing tuning parameters
A similar SR-series designation does not establish interchangeability.
Can I hot-swap the ?
No. Treat it as a powered electromechanical motion component.
Before replacement, isolate the servo power supply and secure the driven mechanism. A direct-drive actuator can move the machine immediately when the amplifier is enabled, so commissioning should begin at controlled speed and torque limits.
Does support firmware v3.1?
The actuator itself is not the appropriate place to establish a generic “firmware v3.1” compatibility claim.
For this type of system, firmware or configuration compatibility normally concerns the servo amplifier/controller and feedback system. Identify the exact amplifier model, firmware revision, actuator suffix, and feedback configuration before determining whether an existing machine image can be reused.
How should I verify a New Surplus ?
For this discontinued actuator, I would require more than a visual inspection.
Recommended acceptance procedure:
- Confirm the complete nameplate.
- Record all suffixes, serial numbers, and revision markings.
- Verify the 230 VAC configuration.
- Inspect the motor housing and connectors.
- Check shaft/coupling condition.
- Check bearings for abnormal play or roughness.
- Test winding resistance.
- Perform an appropriate insulation-resistance test.
- Verify feedback/encoder signals.
- Operate the actuator with the correct matched amplifier.
- Check servo alarms and following error.
- Perform a controlled low-speed positioning test.
One procurement point deserves emphasis: is listed as discontinued, so old stock condition and storage history matter. A unit that has never been installed can still require careful inspection of bearings, feedback electronics, connectors, and insulation before being placed back into a production machine.
