Table of Contents
Advertisement
10.3 Battery Maintenance
CAUTION
All work or service on the ESS and electrical connections must be supervised by personnel
knowledgeable about batteries and the required precautions. When replacing Battery
packs, replace old ones with the same type and number of batteries (Check the type label
or serial numbers/model numbers on Battery packs). 40-minute standby period of time to
complete discharging in the system before testing electrical parts inside the system!
Do not dispose of batteries in a fire. The batteries may explode.
Do not open or damage batteries. Released electrolyte is harmful to the skin and eyes.
It may be toxic.
A Battery can present a risk of electrical shock and high short-circuit current.
The following precautions should be observed when handling batteries.
Remove watches, rings, or other metallic objects.
Use tools with insulated handles.
Wear rubber gloves, eye protection glasses and boots when working with the Battery
systems.
Do not lay tools or metal parts on top of batteries.
Disconnect charging source prior to connecting or disconnecting Battery terminals.
Determine if the Battery is inadvertently grounded. If that is the case, separate Battery from
ground Contact with any part of a grounded Battery can result in electrical shock.
The likelihood of such shock can be reduced if such grounds are removed during
installation and maintenance (applicable to equipment and remote Battery supplies not
having a grounded supply circuit).
10.3.1 Checking Battery Problem
When you check the event message (as noted in Chapter 9), check whether it is a significant event that
informs the Battery system.
If it is a significant event, contact the installer or the maintenance personnel.
If it is a significant event message related to the failure, exchange the Battery. However, Battery exchange
is permitted only to the qualified personnel.
10.3.2 Battery Exchange Procedure
1. Disconnect the BMS communication cable.
2. Open the bottom cover of the Battery you want to replace.
3. Remove the ground, (+) and (-) wire.
4. Close the Battery bottom cover and move the Battery pack to a suitable location.
5. Prepare the Battery pack to be installed and proceed as described in section 5.3.
99
I
Maintenance
Advertisement
Table of Contents
