Danfoss VLT AutomationDrive FC 302 Installation Instructions Manual

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Installation Instructions

Control Card VLT

These instructions describe the replacement of the control card in:

•

VLT

HVAC Drive FC 102.

•

VLT

Refrigeration Drive FC 103.

•

VLT

AQUA Drive FC 202.

•

VLT

AutomationDrive FC 301/FC 302.

•

VLT

Lift Drive LD 302.

Safety Instructions

Only Danfoss authorized, qualified personnel is allowed to repair this equipment.

WARNING

DISCHARGE TIME

The frequency converter contains DC-link capacitors, which can remain charged even when the frequency converter is not

powered. High voltage can be present even when the warning LED indicator lights are off. Failure to wait the specified time

after power has been removed before performing service or repair work can result in death or serious injury.

•

Stop the motor.

•

Disconnect AC mains and remote DC-link power supplies, including battery back-ups, UPS, and DC-link connections to

other frequency converters.

•

Disconnect or lock PM motor.

•

Wait for the capacitors to discharge fully. The minimum duration of waiting time is specified in Table 1.1 to Table 1.5.

•

Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the

capacitors are fully discharged.

FC Series

MI93A102