Schneider Electric Xantrex XW Installationsanleitung PDF herunterladen (Seite 46)

Troubleshooting

3–2 975-0540-01-01 Revision B

This guide is for use by qualified personnel only.

Charge Controller Troubleshooting

Table 3-1 lists possible problems that could arise with the charge controller.

DANGER

HAZARD OF ELECTRIC SHOCK, BURNS, FIRE, AND EXPLOSION

This chapter includes hazardous tasks that must be performed only by

qualified personnel equipped with appropriate personal protective equipment

and following safe electrical work practices. Review the “Important Safety

Instructions” beginning on page vii before proceeding.

Failure to follow these instructions will result in death or serious injury.

Table 3-1 Charge controller problems

Problem Possible Cause Solution

Uneven output current

between multiple

charge controllers.

A. PV arrays are supplying different

amounts of current to each charge

controller.

A. Check array output, but consider

that this could be a normal operating

condition if the arrays are located in

different locations or point in different

directions.

B. Charging set points are not all set

the same.

B. Set charge controllers to the same

settings.

C. Excess voltage drop in wiring is

causing charge controllers to measure

the battery voltage differently and

regulate accordingly.

C. Check wiring. Upgrading or

shortening the wire run might be

required.

D. Charge controllers are in constant

voltage (absorption) mode and

therefore are limiting their output

current to maintain the present battery

voltage. In this situation, some charge

controllers will produce more output

current than others.

D. No need to intervene as this is a

normal operating condition.

The SCP LCD shows a

ground fault and the

charge controller has

stopped operating.

A ground fault has caused the ground

fault protection fuse to blow, or a

normally ungrounded array contains a

ground fault.

See “Replacing the Ground Fault

Protection Fuse” on page 3–4 or

“Ground Faults in a Normally

Ungrounded Array” on page 3–5.

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