The L180 servo drive is used to control MOOG brushless servo motors.

These are three-phase motors with 8 or 12 poles (4 or 6 pole pairs) with bipolar resolvers.

The L180 servo drive is fully digital. The high-performance torque and speed control meets all requirements for fast response and high control accuracy.

The digital control allows full diagnostics, motor parameter adjustment, www.abb-drive.com data and fault detection using a PC-based graphical user interface (GUI).

The L180 servo drive features the following:

Power supply

– Single-axis unit that includes a regenerative module to minimise wiring and space requirements.

– 230 V three-phase or single-phase.

– Optional: External filter in the power supply is CE compliant.

– The drive is designed to Protective Extra Low Voltage (PELV) standards. An autotransformer is sufficient for the mains input.

Power Driver

– Galvanic isolation between control and power electronics.

– IGBT output stage.

– Digital PWM current loop provides low ripple motor current and high motor efficiency.

Digital Controller

– Fully digital servo drive for brushless motors with resolver.

– Easy software download via RS232 serial connection.

– Temperature regulated fan cooling.

– Multi-loop control (torque and speed).

– Sine current output ensures smooth torque and performance at low speeds.

– 7-segment status indicator for diagnostic display.

User Inputs

– ±10VDC differential analogue input for speed or current commands.

– RS232 serial port.

– Limit switches for bi-directional overrun protection.

– Optional external 24VDC power supply for control and interface boards in the event of a mains power failure.

User Outputs

– Programmable incremental encoder analogue output with 1 to 2048 ppr resolution (extrapolated), differential RS 422 line driver output.

– Programmable supervisory relays to indicate ready, alarm or enabled status.

Protection Features

– The power stage is short-circuit and thermal protected.

– Motor thermal protection through I²t limiting and thermistors.

– Detects resolver faults and motor wiring faults.

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