SMA Solar Technology AG
5. Tighten the 3 connecting screws of the AC power
controller's printed circuit board (TX20, torque:
3.5 Nm (31.0 in-lb)). When doing so, observe the
specified screw sequence.
6. Tighten all connecting screws of the power modules
(TX20, torque: 2.0 Nm (17.7 in-lb)). When doing
so, observe the specified screw sequence.
Replacement Manual
7 Replacement of AST assembly
1
3
5
2
1
4
3
9
8
7
12
11
STP50-ACRLY-AST-RM-xx-10
2
6
10
23