Maintenance for Problem Solving
I
26
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).
6.2.2 Input / Output Terminal Check
•
Check the input / output terminal when the device fails to work with significant errors.
•
Check the input / output terminal after turning off the AC circuit breaker and DC
disconnect switch.
•
Do not perform the check when the device is working.
•
Measure the input / output terminal with a multi-meter.
- PV1 input : CN104, CN105
- PV2 input : CN107, CN106
- Battery input : CN401
- Load output : CN603
- AC output : CN1 (Sub Filter Board)
•
If the resistance value is in a short state (close to 0), perform PBA exchange.
6.2.3 DC Link Check
•
Check the DC Link when the device fails to work.
•
Check the DC Link after turning off the AC circuit breaker and DC disconnect switch.
•
If the resistance value is in a short state, perform PBA exchange.
6.3 Battery Maintenance
Summary of Contents for Q.HOME+ESS HYB-G2
Page 2: ......