WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Type | Programmable positioner / amplifier |
| Motor Compatibility | Brush and brushless |
| Output Current | 6.5 A |
| Output Stage | 4-quadrant (V-MOS transistors) |
| Switching Frequency | 30 kHz |
| Operating Voltage | Approx. 220 V (115 VAC class) |
| Main Power | 3-phase with smoothing capacitors (single-phase optional) |
| Line Frequency | 50–60 Hz |
| Short-Circuit Protection | On motor terminals |
| Auxiliary Supply | DC-link or external 24 V DC |
| Protection Class | IP00 |
| Operating Altitude | ≤ 1000 m |
| Ambient Humidity | 5–85 % RH (non-condensing) |
| Communications | RS-232 / RS-422/485 (multidrop capable) |
4. Product Introduction
The Kollmorgen BJRL-20012-110001 is a programmable servo positioner/amplifier from the BJRL / Goldline Smart Drives family. It combines positioning logic and a power amplifier in one compact unit and drives both brush and brushless motors.
This drive is used in legacy motion systems that require integrated step-and-direction or programmed positioning without a separate controller and amplifier. It remains a practical replacement for existing BJRL installations where the original unit has failed.
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No motor motion | Drive disabled, power loss, or command missing | ✅ High | Verify supply voltage and Enable signal | Confirm power and command inputs first |
| Over-current or fault LED | Shorted motor leads or overload | ✅ High | Measure motor winding resistance; check mechanical load | Clear bind or replace drive if internal fault |
| Motor hunts or vibrates | Tuning or feedback issue | ✅ High | Check encoder/resolver connections and shielding | Inspect feedback wiring; re-tune if needed |
| Communication failure | Serial wiring or baud rate mismatch | ✅ Medium | Verify RS-232/485 cabling and settings | Match controller parameters to drive |
| Intermittent operation | Loose connectors or thermal issue | ✅ Medium | Reseat all connectors; check cooling | Improve ventilation and secure connections |
If the problem continues, record all LED states, supply voltage, and command signal presence, then contact technical support with connection photos.
BJRL-20012-110001
BJRL-20012-110001
6. Frequently Asked Questions (FAQ)
Q: Is the BJRL-20012-110001 still in production?
A: No. It is a legacy Goldline / BJx series drive. New-surplus and fully tested refurbished units are the available options for maintaining existing systems.
Q: What motors does it support?
A: Both brush and brushless motors. Confirm motor voltage and current ratings match the drive’s 6.5 A continuous capability.
Q: Does it require external programming software?
A: Yes. It uses the BJx command language. Original setup parameters or a backup should be available before replacement when possible.
Q: What power supply is required?
A: Main power is typically 3-phase (with optional single-phase and smoothing capacitors). An auxiliary 24 V DC supply may also be used.
Q: Can it be used with modern controllers?
A: It supports serial communications (RS-232/RS-485). Compatibility depends on the host controller’s ability to speak the BJx protocol or provide suitable step/direction signals.
Q: Can I hot-swap this drive?
A: No. Always remove power and disable the axis before connecting or disconnecting the motor or control cables.
Q: Why choose a tested refurbished unit?
A: These intelligent servo drives are no longer manufactured. Fully tested units restore motion capability quickly while carrying a warranty, avoiding the long lead times of scarce new-surplus stock.
