Description
Key Technical Specifications
-
Model Number: CB06560 (PRD-B040SAIB-62)
-
Manufacturer: Kollmorgen (formerly Danaher Motion)
-
Product Family: Servostar CD Series Servo Drives
-
Input Voltage: 200-480V AC, 3-phase, 50/60 Hz
-
Rated Power: 6.5 kW
; 4 kW
(conflicting sources)
-
Output Power: 6.5 kW
-
Rated Current: 17A
; 6A continuous
(conflicting sources)
-
Peak Current: 8A
; 13.4A
(conflicting sources)
-
Control Mode: Digital PID closed-loop control
-
Feedback: Resolver (ATAN of sin/cos), transformation ratio 0.47, modulation 7-8 kHz
-
Encoder Support: 1Vpp, 5Vpp, TTL, EnDat, BiSS
-
Communication: EtherCAT, CANopen, RS-232, RS-485, PROFINET
-
Operating Temperature: 0°C to +40°C
; -20°C to +60°C
(variant dependent)
-
Protection Grade: IP20
-
Dimensions: 249 × 163 × 83.3 mm
; 289.6 × 119.3 × 260.5 mm
(conflicting sources)
-
Weight: ~6.5 kg
; 2 kg
(conflicting sources)
-
Efficiency: ~95%
-
Response Time: <10 ms
; <1 ms
(conflicting sources)
-
Position Accuracy: ±0.001 mm
-
Speed Accuracy: ±0.01%
Kollmorgen CB06560
Field Application & Problem Solved
In the field, the biggest challenge with industrial servo systems is maintaining precise speed and position control under varying loads while minimizing energy waste. Open-loop systems drift, hydraulic systems leak, and older drives can’t communicate with modern PLCs. The CB06560 solves this with closed-loop digital PID control that auto-regulates motor performance in real-time, cutting energy consumption by up to 22% compared to traditional drives while holding ±0.001 mm positioning accuracy.
You will typically find this drive in metal forming presses, paper conversion lines, packaging machinery, CNC machine tools, and textile equipment. It’s designed for applications requiring high torque at low speeds with rapid direction changes—scenarios that burn out standard VFDs. The 95% efficiency rating
matters when you’re running 24/7 production; the heat dissipation is lower, cabinet cooling requirements drop, and your power bill shrinks.
Its core value is precise motor control without the complexity. The resolver feedback system calculates absolute position from ATAN of sin/cos signals
—no battery-backed encoders to fail, no homing sequences after power loss. The drive auto-tunes PID parameters and supports multiple fieldbus protocols, so it drops into existing EtherCAT or CANopen networks without gateway boxes or custom programming.
Kollmorgen CB06560
Installation & Maintenance Pitfalls (Expert Tips)
Resolver Wiring is Not Encoder Wiring—Don’t Mix Them Up
The CB06560 uses resolver feedback, not incremental encoder feedback. Resolvers have 4-6 wires (excitation and signal pairs) and output analog sin/cos signals. Encoders have 6-12 wires with digital pulses. A common field mistake is wiring an encoder to the resolver input or vice versa. The drive won’t recognize position, faults immediately, or runs away.
-
Field Rule: Verify the motor nameplate says “Resolver” not “Encoder.” Check transformation ratio (must be 0.47) and modulation frequency (7-8 kHz) match the drive settings
. Use shielded twisted pair for resolver cables, grounded at the drive end only.
Power and Feedback Cables Must Be Separated
Kollmorgen specifies minimum 20 cm separation between power cables and motor feedback cables
. Running them in the same conduit induces noise into the resolver signals, causing position jitter and servo hunting.
-
Quick Fix: Route power cables on one side of the cabinet, feedback cables on the other. If they must cross, do so at 90 degrees. Use steel conduit for power, aluminum or plastic for feedback—steel shields magnetic fields.
Drive Current Rating vs. Motor Current Rating Mismatch
The CB06560 comes in multiple current ratings (6A, 17A, etc.)
. A common pitfall is installing a 6A drive on a 10A motor “because it’s cheaper.” The drive current-limits, can’t reach rated torque, and faults on overload.
-
Field Rule: Size the drive for 150% of motor FLA (Full Load Amps) for peak torque demands. Check the PRD-B040SAIB-62 suffix indicates your specific current rating. If the motor plate says 8A continuous, use the 17A drive, not the 6A.
Auto-Tune Requires Proper Inertia Matching
The digital PID auto-tune function works only if the load inertia is within 10:1 of motor inertia. High-inertia loads (large flywheels, spindles) cause the auto-tune to fail or create unstable oscillation.
-
Quick Fix: Calculate inertia ratio before running auto-tune. If >10:1, add a gearbox to reduce reflected inertia, or manually tune PID starting with conservative gains (low P, minimal I, zero D). Increase P until slight oscillation, then back off 20%.
EtherCAT vs. CANopen—Physical Layer Confusion
The drive supports multiple protocols , but the physical wiring differs. EtherCAT uses standard Ethernet (CAT5e/CAT6). CANopen uses shielded twisted pair with 120-ohm termination. A common mistake is wiring EtherCAT to the CANopen port or vice versa.
-
Field Rule: Check the label above the communication port. RJ45 = EtherCAT. DB9 or terminal block = CANopen/RS-485. Never assume based on software configuration alone—wrong physical connection kills the port.
