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Installation
Installation of the Epsilon EP drive is completed by following a simple
Step 1: Basic Installation and Panel Layout, page 3
Step 2: Mechanical Installation, page 7
Step 3: High Power Connections, page 10
Step 4: Low Power Connections, page 22
Step 1: Basic Installation Guidelines
You are required to follow all safety precautions during
Electromagnetic Compatibility (EMC)
Drives are designed to meet the requirements of EMC. Under extreme conditions a drive might cause or suffer from disturbances due to electromagnetic interaction with other equipment. It is the responsibility of the installer to ensure that the equipment or system into which the drive is incorporated complies with the relevant EMC legislation in the country of use.
The following instructions provide you with installation guidance designed to help you meet the requirements of the EMC Directive 89/336/EEC.
Adhering to the following guidelines will greatly improve the electromagnetic compatibility of your system, however, final responsibility for EMC compliance rests with the machine builder, and Control Techniques Americas LLC cannot guarantee your system will meet tested emission or immunity requirements.
If you need to meet EMC compliance requirements, EMI/RFI line filters must be used to control conducted and radiated emissions as well as improve conducted immunity.
Physical location of these filters is very important in achieving these benefits. The filter output wires should be kept as short as practical and routed away from the filter input wires. In addition:
•Choose an enclosure made of a conductive material such as steel, aluminum or stainless steel.
•Devices mounted to the enclosure mounting plate, which depend on their mounting surfaces for grounding, must have the paint removed from their mounting surfaces and the mating area on the mounting plate to ensure a good ground. See “Achieving Low Impedance Connections” on page 3 for more information.
•If grounding is required for cable grommets, connectors and/or conduit fittings at locations where cables are mounted through the enclosure wall, paint must be removed from the enclosure surface at the contact points.
•Cables should be shielded, and all shields must be grounded to the enclosure.
To meet radiated emissions requirements, the enclosure door must be closed and have electrical conduction at hinges and closure hardware or be fitted with a conductive gasket. Route cables away from the door where possible to minimize coupling emissions to door where they can
Achieving Low Impedance Connections
Noise immunity can be improved and emissions reduced by making sure that all the components have a low impedance connection to the same ground point. A low impedance connection is one that conducts high frequency current with very little resistance. Impedance cannot be accurately measured with a standard ohmmeter, because an ohmmeter measures DC resistance. For example, a 12 inch long 8 gauge round wire has a significantly higher impedance than a 12 inch long 12 gauge flat braided conductor. A short wire has less impedance than a long one.
Low impedance connections can be achieved by bringing large areas of conductive surfaces into direct contact with each other. In most cases this requires paint removal because a ground connection through bolt threads is not sufficient. However, component materials should be conductive, compatible and exhibit good atmospheric corrosion resistance to prevent loss through corrosion that will hinder the low impedance connection. Enclosure manufacturers offer corrosion resistant, unpainted mounting plates to help.
Installation | 3 |
