VLT
®
8000 AQUA
■
Derating for ambient temperature
The ambient temperature (T
AMB,MAX
) is the
maximum temperature allowed. The average
(T
AMB,MAX
) measured over 24 hours must be
at least 5°C (9°F) lower.
If VLT 8000 AQUA is operated at temperatures
above 45°C (113°F), a derating of the continuous
output current is necessary.
The current of VLT 8152-8352, 380-480 V, is
to be derated 1%/°C above 40°C (0.56%/°F
above 104 °F) maximum.
■
Derating for air pressure
Below 1000m/3300 ft altitude no derating is necessary.
Above 1000m/3300 ft the ambient temperature (T
AMB
)
or max. output current (I
VLT,MAX
) must be derated
in accordance with the diagram below:
1. Derating of output current versus altitude at
T
AMB
= max. 40°C (113°F)
2. Derating of max. T
AMB
versus altitude at
100% output current.
■
Switching on the input
Switching on the input depends on the line
voltage in question.
The table states the waiting time between cut-ins.
Line voltage
380 V
415 V
460 V
Waiting time
48 s
65 s
89 s
MG.80.A7.22 - VLT is a registered Danfoss trademark
182
Rosewood STP ST42 General (Operation and Maintenance Manual - Part 4:
Section 6.3 Manufacturers Manuals 6.3.33 Danfoss VLT Aquadrive 8000) Vendor Manual
QP Id: VM207
Active: 03/09/2013
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