Huawei SmartLogger2000 User Manual page 116

SmartLogger2000
User Manual
No. Parameter
20 PLC
communication
21 Upgrade delay
22 String monitor
23 String detection
low power
delay
24 String detection
high power
delay
Issue 04 (2018-04-10)
Description
For inverter models that
support both RS485 and
PLC communication,
when RS485
communication is used,
you are advised to set
PLC communication to
Disable to reduce power
consumption.
Upgrade delay is mainly
used in the upgrade
scenarios where the PV
power supply is
disconnected at night due
to no sunlight or unstable
at dawn or dusk due to
poor sunlight.
The inverter monitors PV
strings in real time. If any
PV string is abnormal
(such as being shaded or
with decreased energy
yields), the inverter
generates an alarm to
remind maintenance
personnel of timely
maintenance.
Specifies the delay time
for generating abnormal
string alarms when the
inverter detects that a PV
string is working with low
power. This parameter is
mainly used in the
scenario where PV strings
are shaded for a long time
in the morning and
evening, and is used to
prevent false alarms.
Specifies the delay time
for generating abnormal
string alarms when the
inverter detects that a PV
string is working with
high power.
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Unit Value Range
N/A  Disable

Enable

N/A Disable

Enable
N/A  Disable

Enable
min [2, 720]
min [2, 720]
7 WebUI
Remarks
 If Tracker controller is
set to a model, this
parameter cannot be set
to Disable.
 If the inverter
communicates with the
SmartLogger over PLC,
this parameter cannot be
set to Disable on the
WebUI.
After the inverter upgrade
starts, if Upgrade delay is
set to Enable, the upgrade
package is loaded first. After
the PV power supply
recovers and the activation
conditions are met, the
inverter automatically
activates the upgrade.
If PV strings are easily
shaded, you are advised to
set String monitor to
Disable to prevent false
alarms.
parameter is displayed when
String monitor is set to
Enable.
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