Replacements
4. Slide the right panel to the back to remove it.
5. Remove the fuse cover by pulling it out.
6. Loosen the three nuts that secure the fuse
and the negative cable.
7. Pull out the fuse.
8. Measure the resistance of the fuse to see if it
is blown.
9. If the fuse is blown, insert a new fuse into the
fuse holder.
10. Reassemble in the reverse order of the disas-
sembly procedure.
2.3 Expanding the ESS
To expand the ESS by adding more battery modules, follow these steps:
1. Press and hold the On/Off button on the master module for longer than 5 seconds
to deactivate the ESS.
2. Shut off the higher level system.
3. Install new battery modules in the rack.
4. Re-activate the ESS.
CAUTION
Never fail to keep this sequence unchanged.
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