Entec ETMFC610 - Battery Protection

Multi-Function Control ETMFC610 http://www.entecene.co.kr
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HANCED
TEC
HNOLOGY
5.11. Battery Protection
Battery protection is to protect the battery from over-discharge by disconnecting the battery from the control
circuit when AC power is down and before the battery is completely discharged. CPU measures the battery
voltage and Latch Relay is set to disconnect the battery circuit either 10 minutes after battery goes down
below 21 voltage or right after battery goes down below 19 voltage.
On Power Down status, if the external power is re-supplied or the Power Switch is changed from OFF to ON,
Control Module becomes operating as normal.
When AC Power is not supplied, in order to operate it by Power Switch, turn it OFF for 5 seconds and then
turn it ON. When it turns ON without Battery, its power will be down after 10 minutes.
Figure 5-15. Power line and Power Protection
BATTERY
SYSTEM
POWER
5V
±12V
CLOSE/OPEN
MOTOR POWER
AGND
DGND
+
-
VGND
CHARGER
AGND
AGND
+
-
+
-
AGND
MODEM POWER
(24Vdc)
DC/DC
(Insulation)
DC/DC
(Non Insulation)
AGND
24Vac
24Vdc/17Ah
PW1 OUT(Rect')
PW2 OUT
(24V / 20~30Vdc)
ETMFC610
Under Voltage
NTC
Themistor
G03
G04
G01
G02