178B1584 by Danfoss

The 178B1584 is an AC drive produced by Danfoss for the VLT 2800 Low Voltage Drives series. It modulates power to three-phase induction motors so process equipment can run at commanded speeds and torque levels. Within industrial automation lines, the unit serves as a compact power converter that links the mains supply to motion tasks in pumps, fans, conveyors, and similar equipment. It is suited to applications where motor speed must follow changing process demand during normal operation. Its compact format also suits panel layouts where several control components share limited space.

Output power is 1.5 kW, which is the continuous rating the drive can handle without derating. The mechanical equivalent is 2.0 HP, which is useful when matching the unit to legacy motor nameplates. It draws from a supply window of 380-480 V ±10% 50/60 Hz, enabling installation on common low-voltage industrial feeders. The drive uses three-phase input power, so it delivers balanced current and reduced ripple to the motor terminals. The cabinet footprint uses a Bookstyle housing, so multiple drives can be mounted side by side in crowded panels. An ingress rating of IP20 means live parts are finger-safe, but the unit must sit inside a protected electrical enclosure.

Communication to upstream control systems is handled through the Profibus DP 12 MBaud interface, so setpoints and status bits travel over a single shielded cable. For installations that require radio-frequency emissions control, the integrated filter satisfies EN 55011 Class A1, which helps reduce conducted noise on the mains conductors. Operators interact locally by means of the built-in display (SLCP), which presents parameter numbers and real-time values without an external keypad. Local access to operating values supports routine monitoring at the cabinet door. The hardware is supplied in the standard configuration with a brake transistor, allowing rapid motor deceleration during process events. No application option card is installed, so the control arrangement remains focused on standard drive functions.