SMA SMC 7000HV Installation - Manual (Page 65)

SMA Solar Technology AG Maintenance and Cleaning
Installation Manual SMC70HV11-IA-IEN112970 65
8.3 Checking the Electronic Solar Switch (ESS) for Wear
Check the Electronic Solar Switch for wear before plugging it in. Depending on the shape of the
Electronic Solar Switch, you can estimate the wear on either the metal tongues (A) or on the plastic (B).
Result Measure
☑ The metal tongues in the
Electronic Solar Switch are undamaged
and not discolored (A).
or
☑ The plastic in the Electronic Solar Switch is
undamaged (B).
1. Securely attach the Electronic Solar Switch
handle.
2. Recommission the inverter as described in
section 6 "Commissioning" (page 49).
☑ The metal tongues in the
Electronic Solar Switch have a brown
discoloration or are burned through (A).
or
☑ The plastic in the Electronic Solar Switch
shows thermal deformation (B).
The Electronic Solar Switch can no longer reliably
disconnect the DC supply.
1. Replace the Electronic Solar Switch handle
before attaching it again (for the order
number, see section 12 "Accessories"
(page 84).
2. Recommission the inverter as described in
section 6 "Commissioning" (page 49).
A
B
A
B