Installation manual ESM-T/X-EV (24 A / 48 A / 72 A)
Page 6/20
SIMON RWA SYSTEME GmbH, Passau
ESM-T/X-EV with power supply
Measurement readings control electronics
Charge
If no charging current is indicated during
the measurement, after approx. 40
seconds a second measurement has to
be accomplished. The reason therefor is,
that after a charging cycle (8 minutes) a
break- and measure period (approx. 40
seconds) is required for the automatic
accu monitoring.
A
F o r e x a m p l e a n o n - c o n n e c t e d
a c c u m u l a t o r g e t s d e t e c t e d a n d
consequently a fault alarm is indicated.
The LED indication “O.K.” at the charging
electronics blinks (= fault). If the lead accu
is defective, this also is signaled by a fault
alarm.
Accu monitoring
Charging electronics, LB-1*0
Charging electronics, LB-1*0
-
+
Lead - accu, 12V
-
+
Lead accu, 12V
During the measurement mains voltage is applied!!
Dublications, also in extracts, are only legal with express authorisation from SIMON RWA SYSTEME GmbH Passau
®
During mains operation the emergency accu is permanently charged with an I/U-charging. In emergency current mode the
charging gets disconnected. After discharging the load electronics is able to charge 80 % of the nominal capacity within 24 h
and after another 48 h it charges the accu 100%. According to VdS 2593 resp. EN 12101-10 the charging is dependent on
temperature. Thereby the charging voltage is adjusted according to the environmental temperature.
The temperature-operated charging voltage must be within the range of
26,7 V and 28,2 V (e. g. at an environmental temperature of 20° C the
charging voltage is at approx. 27,5 V). This reading can be measured at a
charged accu (without disconnecting the accu from the charging).
In order to check the function of the
charging at a discharged accumulator
anyway, the charging current must be
measured.
The reading is approx. 1,5 A.
=V
+
-
-
+
Lead - Accu, 12V
-
+
Lead accu, 12V
