Maintenance/Troubleshooting
Page 52
Operating Instructions KACO blueplanet 29.0TL3
EN
EN
DANGER! The DC cables are still live!
–
Device version S, Basic + M: Switch off DC power supply externally via the combiner box (not supplied)
using the DC isolator switch.
›
After shutdown, wait at least five minutes before opening the inverter.
9.7
Checking or replacing surge protection device
DANGER
Risk of fire if the fuse holder is disconnected in a live state.
The connection terminals and fuse holder can be destroyed by arcing if disconnected or if the fuses
are removed.
Shutdown sequence:
1.
Switch off the grid voltage by turning off the external circuit breakers.
2. Switch off the PV generator using the DC isolator switch.
DANGER! The DC cables are still live!
3. Check that there is no current in any of the DC cables using a clip-on ammeter.
4. Only open the fuse holder once you have established that there is no current in the DC cables.
5. Ensure that there is no voltage present on the grid connection terminals.
Checking SPD modules (XL, M version: if retrofitted)
ඣ
The shutdown sequence in the preceding warning has been carried
out.
ඣ
Open the housing and secure the door with the latch lever.
Note:
Base monitoring must be activated via the menu “SPD monitoring”
on page 41.
1.
Check individual modules using the status display (pos. 3 in Figure 48).
Note:
Faulty modules report a colour-coded status.
»
Testing finished, replace any faulty modules.
Replacing SPD modules (XL, M version: if retrofitted)
ඣ
Ensure there is no AC/DC voltage present.
Note:
Modules can be ordered from our customer service team. In this
respect, please refer to the documentation “blueplanet 50.0 TL3 Application
note – Installing surge protection device” on our website.
1.
Unlock faulty AC modules via the upper and lower locking latches.
2. Unlock faulty DC modules via the upper locking latches using a screw-
driver.
3. Remove faulty modules from the base.
4. Transfer the coding in the base to the new module of the same type.
5. Insert module(s) into the base.
»
Surge protection device is fully equipped. Close the housing door
and switch on the inverter as described in section 7.10 on page 30
onwards.
1
4
2
3
Figure 47: AC overvoltage protection
1
4
2
3
Figure 48: DC overvoltage protection
Key
1
Lock
2
SPD modules
3
Status display
4
Base