Parameter Category Specification Detail Model Designation ACS355-03U-01A9-4 Product Series ABB ACS355 General Purpose Micro Drive Rated Power 0.75 kW (1 HP) Output Current 1.9 A (at 400V, continuous duty) Supply Voltage 3-phase, 380 - 480 V AC (±10%), 50/60 Hz Control Method Scalar Control (V/Hz) with flux optimization Enclosure Rating IP20 / UL Type 1 (Open Chassis) Frame Size R1 Standard Features - Built-in Modbus RTU (RS-485) - 3 digital inputs, 1 analog input - 1 analog output, 1 relay output - Flying start - Automatic energy optimization - DC braking - IP20 protection 3. Option Module B063: Safe Torque Off (STO) Specification Details Function Safety function that prevents unexpected motor start-up Safety Standard Complies with EN/IEC 61800-5-2, EN ISO 13849-1, EN 62061 Safety Integrity Level SIL 3 according to IEC 61508, IEC 62061 Performance Level PL e according to ISO 13849-1 Safety Category Category 3 Description The B063 option provides two safe digital inputs for implementing the Safe Torque Off function. This safety function ensures that no torque-generating power is delivered to the motor, preventing unexpected start-up during maintenance or emergency situations. It meets strict international safety standards for machinery applications. 4. Option Module F278: I/O Extension Module Specification Details Module Type Digital and Analog I/O Extension Additional Inputs - 2 digital inputs (24V DC) - 1 analog input (0-10V/0-20mA selectable) Additional Outputs - 1 analog output (0-20mA/0-10V programmable) - 1 relay output (changeover contact, 250V AC/30V DC, 2A) Installation Pluggable module, mounts directly to the drive Description The F278 module extends the control capabilities of the base ACS355 drive by providing additional I/O points for more complex control scenarios. This is particularly useful when the base drive's I/O is insufficient for the application requirements. 5. Complete Package Specifications Aspect Combined Capabilities Total Digital Inputs 5 (3 base + 2 from F278) + 2 safe inputs (from B063) Total Analog Inputs 2 (1 base + 1 from F278) Total Analog Outputs 2 (1 base + 1 from F278) Total Relay Outputs 2 (1 base + 1 from F278) Safety Features SIL 3, PL e Safe Torque Off function Communication Built-in Modbus RTU (RS-485) Control Flexibility Enhanced with additional I/O for complex control sequences 6. Key Application Features Safety Integration: Safe Torque Off (STO): Enables safe maintenance and emergency stop functionality Dual-Channel Safety Inputs: Redundant safety circuit design Safety Monitoring: Continuous monitoring of safety circuits Enhanced Control Capabilities: Expanded I/O: Suitable for applications requiring multiple control signals Flexible Configuration: Additional inputs for sensors, switches, and safety devices Extended Outputs: Control of external devices, indicators, and auxiliary equipment