Application - Siemens SIMOVERT MASTERDRIVES Betriebsanleitung

08.2009
11.1.2
105
100
Siemens AG
SIMOVERT MASTERDRIVES
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Application

In application, the same general conditions apply as to standard units
(with air cooling), with the exception of the cooling conditions described
below.
Water is normally used as the cooling medium (see Section "Coolant").
Antifreeze is added only in exceptional cases.
Within a cooling water temperature range of from + 5 °C to + 38 °C, the
unit can be operated at 100% rated current.
If higher cooling water temperatures are necessary, the unit operating
current must be reduced as shown in Figures 11-4 and 11-5 (Curve 1).
This applies only where water is used as the cooling medium (see
notes in Section "Anti-condensation, Antifreeze").
Permissible rated current in %
95
90
85
80
75
70
65
36 37 38 39 40
Supply temperature in °C
Water
20 % Mixture -10 °C
34 % Mixture -20 °C
44 % Mixture -30 °C
Fig. 11-4
Siemens Controls
6SE7087-6JD50
Operating Instructions
manuals search engine
Derating Curve IP22
1
41 42 43 44 45
Reduction curve applying to installation in IP22 cabinets
Technical Data
46 47 48 49 50
11-11