ACS800

4

Safety instructions

Do not attempt any work on a powered drive. After switching off the mains, always allow the intermediate circuit capacitors 5 minutes to discharge before working on the frequency converter, the motor or the motor cable. It is good practice to check (with a voltage indicating instrument) that the drive is in fact discharged before beginning work.

Avoid touching the circuit board (RMIO) inside the RDCU-02(C) unit in order to minimise the risk of damage caused by static electricity.

Do not use excessive force when detaching connectors or removing the cover of the unit.

Identifying different types of unit

Before installation, check that the RDCU-02(C) unit has the correct application program for the converter hardware in question. There is a label attached to the cover of the RDCU-02(C) unit that lists “SW TYPE”, “SW CODE” and “DEVICE TYPE”.

“SW TYPE” identifies the application program that is loaded into the RDCU-02(C) unit. Some of the most common “SW TYPE” codes are AMXRxxxx (ACS600/800 System Application Program), ASxRxxxx (ACS600/800 Standard Application

Program), AHxRxxxx (ACS800 Pump Control Application Program), and IxxRxxxx ISU (IGBT Supply Unit Application Program). Check that the application program corresponds to the original order.

Check also that the “DEVICE TYPE” indicated matches that of the converter hardware.

Mechanical installation

General

The RDCU-02(C) can be mounted on a vertical or horizontal 35 × 7.5 mm DIN rail.The unit should be mounted so that air can freely pass through the ventilation holes in the housing. Mounting directly above heat-generating equipment should be avoided.

WARNING! Avoid installing the RDCU in the immediate vicinity of sources of

electromagnetic disturbance, such as relays, contactors, brake choppers and motor cabling. The minimum recommended distance from such components is 500 mm. Installing metallic screening between the unit and the source of disturbance is highly recommended, and may reduce the required distance.

The RDCU is grounded to the mounting rail by two screws.

RDCU-02(C) Control Unit Hardware Manual