Digital guide
You are here:
Kollmorgen B-204-B-24
Product Name: Goldline® B-Series Permanent Magnet Brushless Servo Motor, Frame B-204 (≈92 × 92 mm flange), Stack Length 4 (long), Winding B, with optional 24 V DC brake and/or built-in DC tachogenerator (suffix “-24” historically denotes 24 V brake or tach-related option in Goldline B legacy catalog)
Detailed content
-
Typical B-204-B Motor Data:
-
Rated Voltage: 230 V AC (line-line RMS)
-
Continuous (Stall) Torque @ 25 °C: ≈ 4.47 N·m (39.5 lb-in) — @ 40 °C ≈ 4.0 N·m
-
Peak Torque: ≈ 13.8 N·m (122 lb-in)
-
Rated Speed: 3600 RPM
-
Max Speed: 6000 RPM (with proper balancing)
-
Continuous Current: ≈ 5.3 A RMS
-
Peak Current: ≈ 17.2 A RMS
-
Torque Constant (Kt): ≈ 0.85 N·m/A RMS
-
Back EMF Constant (Ke): ≈ 51 V/kRPM (RMS line-line)
-
Rotor Inertia: ≈ 0.0017 kg·m²
-
Thermal Time Constant: ≈ 25–30 min (motor), 40–50 min (winding)
-
Insulation Class: H (180 °C)
-
Feedback Options: 2-pole brushless resolver standard; encoder adapter available
-
Brake (if fitted): 24 V DC spring-applied, electrically released fail-safe brake — “24” in suffix often denotes 24 V brake or tachometer option; verify nameplate
-
Tachogenerator (if fitted): DC tach, typical 7–15 V/kRPM depending on model — used for analog velocity loop in vintage drive systems
-
Connection: MS bayonet connectors or flying leads
-
IP Rating: IP65 (with seals), IP54 (standard)
-
-
Structure: Rare-earth PM rotor, cast aluminum housing with fins, precision ball bearings, optional rear shaft extension for tach/resolver.
-
Applications (Legacy): Machine tools, web processing lines, extrusion lines — especially in retrofit of older Kollmorgen Goldline systems.
-
Installation & Cautions: Match brake voltage exactly (24 V DC); tachogenerator outputs are low-level analog — keep separate from power wiring; thermostat (if present) should be wired to drive overtemperature input.
