SMA 123263-00.01 Austauschanleitung Seite 16

6 Removing the Left Enclosure Lid
4. Ensure that the voltage on the capacitors between T
(red) and S (green) and T (red) and R (yellow) is
less than 60 V within the DC measuring range.
5. Ensure that the voltage on the DC link between
BUS+ and BUS- is less than 60 V in the DC
measuring range.
6. Actively discharge capacitors: For this purpose use,
for example, a 2-pole voltage detector that does not
have its own voltage source. Measure with the
voltage detector between T (red) and S (green) and
T (red) and R (yellow) until a value of less than 5 V
in the measuring range is displayed.
7. Actively discharge DC link: For this purpose use, for
example, a 2-pole voltage detector that does not
have its own voltage source. Measure with the
voltage detector between BUS+ and BUS- until a
value of less than 5 V in the DC measuring range is
displayed.
16 STPxxx-60-DC-SPD-RM-xx-11
SMA Solar Technology AG
T S < 60 V
T R < 60 V
T
S
R
BUS+ BUS- < 60 V
U T S < 5 V
T R < 5 V
t
T
S
R
U
BUS+ BUS- < 5 V
t
Replacement Manual
V
0 . 0 V
< 6 0
V
0 . 0 V
< 6 0