This is a 3‑phase, 480‑V class machinery drive with 37 kW / 50 HP rating, frame size D, IP20.
Core Electrical Ratings
| Parameter | Value | Notes |
|---|---|---|
| Model | ACS850‑04‑061A‑5 | |
| Supply Voltage | 3‑phase 380–500 V AC, +10% / -15% | 50/60 Hz ±5% |
| Nominal Input Current (I₁N) | 31 A | RMS at 40 °C, with built‑in mains choke |
| Nominal Output Current (I₂N) | 61 A | Continuous, no overload at 40 °C |
| Max Output Current (Iₘₐₓ) | 78 A | ≥10 s at start; limited by thermal conditions |
| Light‑duty Current (I_Ld) | 57 A | 110% overload for 1 min/5 min at 40 °C |
| Heavy‑duty Current (I_Hd) | 52 A | 150% overload for 1 min/5 min at 40 °C |
| Output Voltage | 3‑phase 0–supply voltage | |
| Output Frequency | 0–599 Hz | |
| Nominal Motor Power (P_N) | 37 kW (50 HP) | No‑overload / constant torque |
| Light‑duty Power (P_Ld) | 37 kW (50 HP) | |
| Heavy‑duty Power (P_Hd) | 30 kW (40 HP) | |
| DC Bus Voltage | 485–675 V DC ±10% | |
| Control Voltage | 24 V DC external |
Mechanical & Environmental
| Parameter | Value |
|---|---|
| Frame Size | D |
| Enclosure | IP20 (UL open type) |
| Dimensions (H×W×D) | 483 × 240 × 274 mm (19 × 9.4 × 10.8 in) |
| Weight | ~14 kg (30.9 lb) |
| Cooling | Forced air |
| Ambient Temp | −10 °C to +40 °C (derate above 35 °C) |
| Altitude | Up to 1000 m (derate above) |
| Humidity | 5–95% RH, non‑condensing |
Key Features
- Control: Direct Torque Control (DTC) or scalar; supports induction, PM, SynRM motors
- Safety: Safe Torque Off (STO) SIL 3 / PL e (EN ISO 13849‑1)
- Braking: Built‑in brake chopper; external resistor JBR‑06 (13 Ω, 132 kJ, 790 W)
- Communications: Embedded Modbus; optional fieldbus (PROFINET, EtherNet/IP, Modbus TCP, PROFIBUS, CANopen, etc.)
- I/O: 6 DI, 2 DI/O, 3 RO, 2 AI, 2 AO; expandable via FIO modules
- Programming: Embedded PLC (SPC function blocks)
Protection Functions
- Overcurrent, short‑circuit, earth fault
- DC over/undervoltage
- Motor thermal, stall, phase loss
- External fault, power limits






