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Notes:
1) Operation with reduced input voltage will result in reduced maximum output voltage accordingly.
2) Values apply for rated DC output current on both the armature and field circuits.
3) The specified output DC voltage can be guaranteed up to an undervoltage of 5% of rated line voltage.
4) The table below gives load values, (DC current), as a function of ambient temperature surrounding the
Base Drive Panel, (refer to P077). Note, Important: When Base Drive Panels are installed into
enclosures, make sure the temperature inside does not exceed 45
rating per the table below.
Ambient temperature
+40ºC
+45ºC
+50ºC
+55ºC
+60ºC
a)
Operation of fan cooled units at ambients above 50
because of limitations on the allowable fan operating temperature.
5) Load values, (DC current), as a function of installation altitude (refer to P077)
%
100
Percentage
load "b"
80
60
40
20
0
Curve b1: Reduction factor of load values, (DC current),
at installation altitudes above 1000 m.
No derating of the supply voltages to any circuits is required
up to an installation altitude of 5000 m for basic insulation.
5-4
% reduction in base drive dc ampere rating
Self-cooled converters
(15, 30, 60, 100 ADC)
– 0 %
– 0 %
– 6 %
– 11 %
– 18 %
b1
1000
2000
3000
Fan-cooled converters
(140 - 1660 ADC)
– 0 %
– 0 %
– 5 %
a)
– 5 %
a)
– 5 %
a)
o
C is not permitted
67%
4000
5000 m
Installation altitude
SIMOREG DC Master Base Drive Panel Operating Instructions
o
C, otherwise derate the DC current
Siemens Energy & Automation
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