Digital guide
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Kollmorgen S403M-PB
Product Brief: Single-axis digitally controlled 3-phase PWM servo amplifier for brushless PMSM and DC brush motors. S403M = 3 Arms continuous / 6 A peak, 200–230 VAC 3Φ (some S400 accept 200–480 VAC — S403M is 230 V class). “-PB” = Multi-feedback interface card fitted (resolver, incremental encoder, SinCos 1 Vpp, EnDat 2.1/2.2, Hiperface/Hiperface DSL — “PB” denotes Premium feedback option in S400 coding); Standard I/O (analog ±10 V, Step/Dir, 6 DI / 3 DO / 1 relay); no fieldbus card fitted (optional cards: CANopen, Profibus, Sercos II, DeviceNet). Compatible with AKM2x–AKM5x motors.
Detailed content
Input Supply Voltage (Power): 200 – 230 VAC 3Φ (+10 % / –15 %), 50/60 Hz (some S400 variants 200–480 VAC — S403M typically 230 V class)
DC Bus Voltage (Nominal): ≈ 280–325 VDC
Continuous Output Current (RMS): 3.0 A
Peak Output Current (RMS, 2 s): 6.0 A
Drive Continuous Output Power (Typical): ≈ 1000 W
Control Logic Supply: +24 V DC (18–30 VDC), isolated, typ. 0.3 A (no brake); 0.8 A (with brake)
Control Modes: Torque, Velocity, Position (±10 V analog command, Step/Dir, Master Encoder Follow, or via optional fieldbus card)
Velocity Loop Update: 125 µs
Current Loop Update: 62.5 µs
Supported Feedback (PB card): Resolver (std), Incremental Encoder TTL/RS-422 (up to 4 MHz), SinCos 1 Vpp, EnDat 2.1/2.2, BiSS-C, Hiperface/Hiperface DSL
Digital I/O: 6× DI (24 V programmable, sink/source), 3× DO (24 V 100 mA open-collector), 1× relay output
Analog I/O: ±10 V differential command input, ±10 V monitor output
Communication for Setup: RS-232 front port for Kollmorgen WorkBench; optional fieldbus in expansion slot
Regenerative Chopper: Integrated (external brake resistor recommended for frequent deceleration)
Dimensions (H × W × D): ≈ 225 mm × 55 mm × 155 mm (compact book format)
Weight: ≈ 1.2 kg
Protection Class: IP20
Operating Temperature: 0 °C to +40 °C (full rated); derating to +55 °C
Certifications: CE, UL, cULus
Applicable Industries: Small-to-mid packaging machines, labeling heads, electronic assembly pick-place, printing register axes, textile guide rollers — S400-based systems
Installation Requirements: Mount vertically in grounded enclosure with ≥ 50 mm clearance top/bottom; connect 3Φ supply via line filter + contactor; PE bond; connect 24 V logic before mains; fit external regen resistor if application > 10 % regen duty.
Usage Notes: S400 is mature — S700 or AKD are successors; autotuning available via WorkBench (S300/S400/S700 version); no STO onboard unless STO option — implement via contactor if required; verify feedback card type matches motor feedback; backup parameters after commissioning.
