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ST_PM_ Installation Manual_EN_V1.0 | 08.2020
Copyright © 2020 Mounting Systems GmbH
1.
Use a spirit level to check the horizontal alignment (0°) of the two outermost rafters
on which the sensors are mounted.
Figure 42 Rafters in horizontal position
2.
Read the sensor values from the inverter:
The sensor value can be found in parameter r0754[0]. The value is output in %,
whereby 0% = -50° and 100% = +50°. The value must not exceed 50% ±3% in the
horizontal orientation. Make a note of the deviation as E[0] = 50% - r0754[0].
3.
Correcting the sensor value:
To change the value of the first sensor, you must adjust the parameters P0758[0] and
P0760[0]. Follow these steps:
P0758[0] = 0% + E[0]
P0760[0] = 100% + E[0]
As a control, the difference between P0758[0] and P0760[0] must be 100%. After
entering the value, the value of r0754[0] must be 50%.
Due to interference the cable and the tolerance of the sensor, this value may
vary slightly. This can be ignored.
Repeat steps 2 and 3 for the second sensor by choosing the same parameters with index
[1].
