Name: Danfoss VLT FC 102 N250
Brand: Danfoss
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5 Electrical Installation

5.1 Safety Instructions

See the Safety Precautions section for general safety warnings.

N O T I C E

EXCESSIVE HEAT AND PROPERTY DAMAGE

Overcurrent can generate excessive heat within the drive. Failure to provide overcurrent protection can result in risk of re and

property damage.

Additional protective equipment such as shortcircuit protection or motor thermal protection between drive and motor is

required for applications with multiple motors.

Input fusing is required to provide short circuit and overcurrent protection. If fuses are not factory-supplied, the installer

must provide them. See maximum fuse ratings in the Specications chapter.

N O T I C E

WIRE TYPE AND RATINGS

All wiring must comply with local and national regulations regarding cross-section and ambient temperature requirements. For

power connections, minimum 75 °C (167 °F) rated copper wire is recommended. Refer to the the Specications chapter.

W A R N I N G

INDUCED VOLTAGE

Induced voltage from output motor cables from dierent drives that are run together can charge equipment capacitors even with

the equipment turned o and locked out. Failure to run output motor cables separately or use shielded cables could result in

death or serious injury.

Run output motor cables separately or use shielded cables.

Simultaneously lock out all the drives.

W A R N I N G

SHOCK HAZARD

The drive can cause a DC current in the PE conductor. Failure to use a Type B residual current-operated protective device (RCD)

may lead to the RCD not providing the intended protection and therefore may result in death or serious injury.

When an RCD is used for protection against electrical shock, only a Type B device is allowed on the supply side.

N O T I C E

PROPERTY DAMAGE

Protection against motor overload is not included in the default setting. For the North American market, the ETR function pro-

vides class 20 motor overload protection in accordance with NEC. Failure to set the ETR function means that motor overload pro-

tection is not provided and property damage can occur if the motor overheats.

Enable the ETR function by setting parameter 1-90 Motor Thermal Protection to [ETR trip] or [ETR warning].

5.2 EMC-compliant Installation

To obtain an EMC-compliant installation, be sure to follow all electrical installation instructions.

Also, remember to practice the following:

Electrical Installation

VLT® Refrigeration Drive FC 103

Operating Guide

Danfoss VLT FC 102 N250 User Manual

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