02.00 Description
Siemens AG 6RX1700-0AD76 3-27
SIMOREG DC Master Operating Instructions
1) The armature/field supply voltage can be lower than the rated armature/field voltage (setting in
parameter P078, input voltages of up to 85V are permissible for converters with rated supply
voltage of 400V). The output voltage is reduced accordingly.
The specified output DC voltage can be guaranteed up to an undervoltage corresponding to 5%
of line voltage (rated supply voltage armature/field).
2) Values apply to output rated DC current.
3) Load values (DC current) as a function of coolant temperature (refer to P077 in Section 11)
Ambient
temperature
Change in load values (percentage reduction
"a")
or coolant in devices with in devices with
temperature self-cooling enhanced air cooling
+40ºC
+45ºC
+50ºC
+55ºC
+60ºC
0 %
– 6 %
– 11 %
– 18 %
– 0 %
– 5 %
(– 10 %)
a)
a) In spite of derating, converters of $ZLWKIRUFHGDLUFRROLQJPD\EHRSHUDWHGDWDQ
ambient or coolant temperature of 50°C only if the rated supply voltage of the converter fan
is safely within the limited tolerance range of 400V + 10% –15%.
b) Only up to 55°C when configuration includes a T400 or OP1S.
4) Load values as a function of installation altitude (refer to P077 in Section 11)
0
20
40
60
80
100
%
Installation altitude
1000 2000 3000 4000 5000 m
Percentage
load "b"
67%
b1
Curve b1: Reduction factor of load values (DC current) at installation altitudes above 1000 m
The supply voltages of all circuits are available up to an installation altitude of 5000 m for basic
insulation.
Converters for 830V rated supply voltage are an exception:
Up to 4000m 830V
Up to 4500m 795V
Up to 5000m 727V
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