Western Co WRM 20 Manual Del Usuario página 19

Change page
You go back to the configuration page of the recharge program.
Once modified the settings of WRM20 these become operative only after the exiting from the configuration pages
pressing simultaneously for at least 2 seconds the buttons
Warnings and Error Codes
With the intervention of the internal protection of WRM20 there are the error codes here below reported.
When the symbol low battery is flashing
this indicates that there is the low battery
protection (to preserve the battery life,
the load has been disconnected). This
protection intervenes when the battery
voltage goes under the threshold V
can be set by the user (Tab.2). WRM20
leaves this protection when the battery
will be charged by the PV module at V
voltage (see Tab.4 Ta le of ele tri al
LB
features .
The battery was connected with inverted
polarities. Check the electrical connection
of the battery.
There is the overload protection. The load
current exceeded the maximum allowed
limit for WRM20 (Iload i the Ta le of
ele tri al features
detached the load to prevent internal
damages. If there is such a signaling, it is
necessary to check if the current
absorbed by the load is < of the allowed
limit. After 1 minute WRM20 try to power
supply again the load and it exits from this
state if the cause that generated the
overload has been eliminated.
WRM20 and WRM20+
Id WBus configuration
Configures the ID number (ID) of the device on WBus network (only for version WRM20+)
Software version display page
It displays the software version in use on WRM20.
a d the regulator
Tab.3 Warnings and Error Codes Table
User manual
Tab.2 Page settings
.
Warnings
that
LB
OUT-
Error Codes
7
When the battery symbol is flashing it
indicates that the WRM20 controller is in
the float phase and therefore the battery
voltage is set to the voltage Vflt = Vch -
0.6V @12V or Vch -1.2V @24V
You have this error when WRM20 internal
temperature exceeds
deactivates the recharge.
automatically from this protection when
the internal temperature goes below the
threshold 50°C. (note:
temperature of the regulator is not
displayed). If you see often this protection
we advise to place the regulator in a
fresher place.
You have this error when battery voltage
goes under the thershold of 9.0V. When
WRM20 signaling this error it disable the
charging circuit.
EN
80°C and
You exit
the internal