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ENERCON E-40 Operating Instructions
Page 50 of 96
5.3.7.2 Functions in shadow stop menu 1
The following variables are shown in shadow stop menu 1:
S h a d o w s t o p
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Act. light intensity : 50%
Stop Intensity : 51%
Shadow stop : on
Shadow stop : inactiv intens.
up intens.
down on/off menue2
Looking at the light intensities, a low percentage value means a low light intensity and a high percentage value indicates strong light intensity. "Shadow stop on/off" indicates whether the function is active. Use the on/off button to switch the function on or off "Shadow stop active/inactive" shows whether the turbine is currently switched off because of shadow conditions.
If the actual light intensity is equal to or higher than the stop light intensity, the wind turbine automatically stops during the time entered in menu 2, as long as the shadow stop function is set to "on". If the turbine is stopped because of shadow formation, the status “active” is displayed in shadow stop menu 1. Conversely, if the turbine is not stopped because of shadow formation, the LC display shows “inactive”. While the turbine is stopped, the main menu of the LC display gives the following status message:
Status: 4 : Shadow stop
You can use the Intens. up and Intens. down keys to alter the value of the stop light intensity. The shadows cast by the rotor blades become weaker with increasing distance and at some point they become completely insignificant, so shadow formation at greater distances is only irritating if the light intensity is high. On average,
60 % can be assumed to be a reasonable value for the stop light intensity. However, this value must be set in accordance with the local circumstances.
Control and power cabinets
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