Pacific Scientific SC904-001-01 Servo Drive | Replacement, Equivalent & Selection Guide
The Pacific Scientific SC904-001-01 is a high-performance AC servo drive designed for precision motion control in demanding industrial automation environments. Whether you are sourcing an original unit, seeking a compatible replacement, or evaluating equivalent alternatives, this guide provides the technical depth and selection criteria you need to make a confident procurement decision.
Technical Specifications
- Manufacturer: Pacific Scientific (Danaher Motion)
- Part Number / SKU: SC904-001-01
- Series: SC900 Servo Drive Series
- Type: AC Servo Drive
- Output Current: Refer to OEM datasheet for rated continuous and peak current
- Input Voltage: Typically 115/230 VAC single-phase or three-phase (verify with OEM spec)
- Control Interface: Analog ±10 V / Step & Direction / RS-232
- Feedback: Encoder (incremental)
- Protection: Over-current, over-voltage, under-voltage, over-temperature
- Weight: 1,380 g (approx.)
- Compliance: CE, UL (verify current certification status)
Note: Always cross-reference with the official Pacific Scientific SC904 datasheet before installation.
Compatible Replacement & Equivalent Models
When the original SC904-001-01 is discontinued, long lead-time, or cost-prohibitive, the following models are commonly evaluated as functional equivalents. Compatibility must be verified against your specific motor, feedback device, and control architecture.
- Pacific Scientific SC904-002-01 – Same series, higher current rating variant
- Pacific Scientific SC904-001-02 – Revised firmware/hardware revision of the same base model
- Kollmorgen AKD-P00306 – Modern EtherCAT-capable replacement; requires wiring adaptation
- Danaher Motion S200 Series – Direct successor platform from the same parent company
- Parker Hannifin Compax3 – Cross-brand equivalent for multi-axis servo applications
- Yaskawa SGDV / SGDH Series – Industry-standard alternative with broad motor compatibility
Important: Replacement drives may require parameter re-tuning, connector rewiring, and firmware configuration. Consult your system integrator before substitution.
Why Choose the Original SC904-001-01
- Drop-in compatibility: No wiring or parameter changes required when replacing like-for-like
- Proven reliability: Validated in thousands of installed servo systems globally
- OEM warranty compliance: Maintains machine builder warranty and CE/UL certification chain
- Reduced commissioning time: Eliminates re-tuning and integration risk
- Spare parts availability: Konmask.com maintains stock of tested, verified units
Typical Applications
- CNC machine tool axes (milling, turning, grinding)
- Packaging machinery (form-fill-seal, cartoning)
- Semiconductor wafer handling and pick-and-place
- Printing and converting equipment
- Robotics and multi-axis gantry systems
- Medical device manufacturing automation
System Compatibility
The SC904-001-01 is designed to operate with Pacific Scientific brushless servo motors and is compatible with the following control environments:
- PLCs: Allen-Bradley (Rockwell), Siemens S7, Mitsubishi Q/FX series via analog or pulse interface
- CNCs: Fanuc, Siemens SINUMERIK, Heidenhain TNC (via analog ±10 V command)
- Motion Controllers: Delta Tau PMAC, Galil DMC series
- Feedback: Incremental encoder (A/B/Z), 5 V differential line driver
Selection Guide
Use the following criteria to confirm the SC904-001-01 is the correct drive for your application, or to select an appropriate alternative:
- Step 1 – Motor matching: Confirm motor continuous/peak current ≤ drive rated output
- Step 2 – Supply voltage: Verify AC input voltage matches your facility power (115 V or 230 V)
- Step 3 – Command interface: Confirm your controller outputs analog ±10 V or step/direction signals
- Step 4 – Feedback type: Verify incremental encoder with 5 V differential output
- Step 5 – Environmental rating: Confirm ambient temperature and enclosure IP rating requirements
- Step 6 – Certifications: Verify CE/UL requirements for your machine’s target market
Not sure which model fits? Contact our technical team at support@konmask.com with your motor nameplate data and control architecture details.
Quality Assurance & Sourcing
- Source: Authorized distributors, OEM surplus, and certified refurbished channels
- Inspection: Each unit undergoes visual inspection and functional verification before shipment
- Traceability: Serial number and date code recorded for every unit shipped
- Warranty: 90-day replacement warranty on all stocked units (see full terms at Konmask.com)
- Counterfeit prevention: Units sourced exclusively from traceable supply chains
How to Order
- Add the SC904-001-01 to your cart and proceed to checkout
- For bulk orders (>3 units) or urgent requirements, email support@konmask.com
- Provide your motor model number for free compatibility verification before purchase
- International orders: DHL / FedEx express available — typical lead time 3–7 business days
- Payment: T/T bank transfer, PayPal, credit card accepted
Replacement & Compatibility FAQ
Q: Is the SC904-001-01 still in production?
A: Pacific Scientific (now part of Danaher/Kollmorgen) has transitioned this series. New production units may not be available; Konmask.com stocks verified surplus and refurbished units.
Q: Can I replace the SC904-001-01 with a Kollmorgen AKD drive?
A: Functionally yes, but the AKD uses EtherCAT/CANopen by default. An analog command interface adapter and full re-commissioning are required.
Q: What motor does the SC904-001-01 pair with?
A: It is designed for Pacific Scientific brushless servo motors. Contact us with your motor model for a compatibility check.
Q: Do you provide a test report or inspection certificate?
A: Yes. A functional test report is available upon request for all units. Contact support@konmask.com.
Q: What is the difference between SC904-001-01 and SC904-002-01?
A: The -002- variant typically denotes a higher continuous current rating. Verify with the OEM datasheet or contact our team.
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