Danfoss VLT Micro User Manual

1.9 Special Conditions
1.9.1 Derating for Ambient Temperature
The ambient temperature measured over 24 hours should
be at least 5°C lower than the max. ambient temperature.
If the frequency converter is operated at high ambient
temperature, the continuous output current should be
decreased.
The frequency converter has been designed for operation
at max 50°C ambient temperature with one motor size
smaller than nominal. Continuous operation at full load at
50 °C ambient temperature will reduce the lifetime of the
frequency converter.
1.9.2
Derating for Low Air Pressure
The cooling capability of air is decreased at low air
pressure.
For altitudes above 2000m, please contact Danfoss
regarding PELV.
Below 1000m altitude no de-rating is necessary but above
1000m the ambient temperature or the maximum output
current should be decreased.
Decrease the output by 1% per 100m altitude above
1000m or reduce the max. ambient temperature by 1
degree per 200m
1.9.3 Derating for Running at Low Speeds
When a motor is connected to at frequency converter, it is
necessary to check that the cooling of the motor is
adequate.
A problem may occur at low speeds in constant torque
applications. Running continuously at low speeds – below
half the nominal motor speed – may require additional air
cooling. Alternatively, choose a larger motor (one size up).
1.10
Options for VLT
®
Micro Drive FC 51
Ordering No Description
132B0100 VLT Control Panel LCP 11 w/o potentiometer
132B0101 VLT Control Panel LCP 12 with potentiometer
132B0102 Remote Mounting Kit for LCP incl. 3 m cable IP55 with LCP 11, IP21 with LCP 12
132B0103 Nema Type 1 kit for M1 frame
132B0104 Type 1 kit for M2 frame
132B0105 Type 1 kit for M3 frame
132B0106 De-coupling plate kit for M1 and M2 frames
132B0107 De-coupling plate kit for M3 frame
132B0108 IP21 for M1 frame
132B0109 IP21 for M2 frame
132B0110 IP21 for M3 frame
132B0111 DIN rail mounting kit for M1 and M2 frames
132B0120 Type 1 kit for M4 frame
132B0121 Type 1 kit for M5 frame
132B0122 De-coupling plate kit for M4 and M5 frames
132b0126 M1 frame spare parts kits
132b0127 M2 frame spare parts kits
132b0128 M3 frame spare parts kits
132b0129 M4 frame spare parts kits
132b0130 M5 frame spare parts kits
Danfoss Line Filters and brake resistors are available upon request.
Quick Guide VLT Micro Drive Quick Guide
MG.02.B6.02 - VLT
®
is a registered Danfoss trademark 19
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Danfoss VLT Micro Specifications

General

Brand	Danfoss
Model	VLT Micro
Category	Media Converter
Language	English