Danfoss iC2-Micro Series - Electrical Installation Considerations; Electrical Installation Precautions

7 Electrical Installation Considerations
7.1 Electrical Installation Precautions
 WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables that run together can charge equipment capacitors, even with
the equipment turned off and locked out/tagged out. Failure to run output motor cables separately, or to use
shielded cables, could result in death or serious injury.
l Run output motor cables separately or use shielded cables.
l Simultaneously lock out/tag out all the drives.
 CAUTION
THERMISTOR INSULATION
Risk of personal injury or equipment damage.
l To meet the PELV insulation requirements, use only thermistors with reinforced or double insulation.
 NOTICE
EXCESSIVE HEAT AND PROPERTY DAMAGE
Overcurrent can generate excessive heat within the drive. Failure to provide overcurrent protection can result in risk of fire and
property damage.
l Additional protective devices such as short-circuit protection or motor thermal protection between drive and motor is
required for applications with multiple motors.
l Input fusing is required to provide short-circuit and overcurrent protection. If fuses are not factory-supplied, the installer
must provide them. Refer to the product-specific documentation for fuse specifications.
 NOTICE
PROPERTY DAMAGE
Protection against motor overload is not included in the default setting. The ETR function provides class 20 motor overload
protection. Failure to set the ETR function means that motor overload protection is not provided and property damage can occur
if the motor overheats.
l Enable the ETR function. Refer to the application guide for more information.
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Design Guide | iC2-Micro Frequency Converters Electrical Installation Considerations