Danfoss TripleLynx CN Installation Manual download pdf (Page 166)

Configuration at a PC

Solar-Log1000, 500, 200: Configuring inverter data (Basic/Inverter)

166 of 268 Solar-Log

1000/500/200

Installation

If an individual module loses power, the string power for the same level of

irradiation will drop, and can thus be detected and reported.

Power comparison always works reliably even if the weather is cloudy.

The important thing is that all modules should not be overshadowed.

Therefore, the monitoring period should be scheduled for periods when

there are no shadows.

As power measurement in the inverter is very inaccurate under a certain

threshold, a minimum percentage value can also be specified below which

monitoring is interrupted.

Snowcover

False messages may occur if the unit is covered in snow. These are mes-

sages from the power comparison that occur if modules are partially cov-

ered, or failure messages if the inverter is no longer switched on because it

is fully covered by snow.

There are two ways to minimise this problem:

– The minimum percentage value above which power monitoring starts

should be set as high as possible, e.g. 30%. For example, if the generator

power is 4500 Wp, power monitoring will start only at 1350 watts. The part-

ly shaded modules reduce the power from the unshaded modules so that

the required 1350 watts is never reached. This is how the problem of par-

tial covering is resolved.

– Failure messages are always sent when the inverter is not working or not

online at times that have been configured as unshaded. It is then assumed

that there is a fault. Complete snow covering would therefore be reported

as a failure. In order to solve this problem there is an indicator for snow-

cover (Yes/ No). If this is set to Yes, no failure message is set if all invert-

ers are offline. This indicator also depends on the current date. It is not

taken into account in the period from the start of November till the end of

April. Outside of this period, it is automatically disabled. Monitoring then

works as usual and also reports complete failures of all inverters.

Period of malfunction

This indicates how long a fault should be present continuously, before it is

recognised as a fault. The minimum duration is 5 minutes, but a longer one

should be selected.

Maximum number of messages per day

A maximum number of messages per day can be defined so that any faults

occurring are not notified too often.

 Activate required options and enter values.

1 2 ... 161 162 163 164 165 166 167 168 169 170 171 ... 267 268

Comments to this Manuals

No comments

Danfoss TripleLynx CN Installation Manual Page 166

Comments to this Manuals

Related products and manuals for Power adapters & inverters Danfoss TripleLynx CN