Western Co WRM20 Benutzerhandbuch Seite 20

There is the overload protection. The load
current exceeded the maximum allowed
limit for WRM20 (Iload in the "Table of
electrical features") and the regulator
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.
Graphics
Recharge voltage versus temperature for 12V
16,0
15,5
15,0
14,5
14,0
13,5
-10 -5 0 5 10 15 20
Tab.3 Warnings and Error Codes Table
SEAL
25 30 35 40 45 50
Temperature °C
Pic.3 Compensation curve of Veoc recharge voltage according to the battery temperature
Pic.4 WRM20 efficiency versus module voltage for 12V e 24V battery.
WRM20 and WRM20+
User manual
32,0
FLOOD
31,5
31,0
30,5
30,0
29,5
29,0
28,5
28,0
27,5
27,0
-10 -5
55 60
8
You have this error when battery voltage
goes under the thershold of 9.0V. When
WRM20 signaling this error, it disables the
charging circuit.
It intervenes at start-up, if the battery
voltage goes out of the voltage range
(10V-16V for 12V batteries and 20V-32V
for 24V batteries). Turn the regulator off
and on again making sure that the battery
voltage falls within the correct voltage
range.
Recharge voltage versus temperature for 24V
0 5 10 15 20 25 30
Temperature °C
EN
SEAL FLOOD
35 40 45 50 55 60