Aros SENTRY MPS-HP, Руководство пользователя

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page 60 / 75 0MNA080A55-GB REV 01
Recharging at two voltage levels (configurable):
This type of recharging is effected with two current levels (EN 50272-2); the first phase comprises rapid charging
(U1) with limited current, while in the second phase charging is with float voltage (U2).
N.B.: this type of recharging may be configured on site and is mainly used for special type batteries such
as open vase and NiCd.
For batteries of type 1, 2 or 3, press key 2 from menu
a
to change from cyclical charge to charging at two levels
Ac= xxx, Vbat.: min=xxx, ch xxx, max=xxx
Bat.type(1) 2=Cycl.->ON ,
For batteries of type 0, press key 2 from menu
b
to change from cyclical charge to charging at two levels
Ac= xxx, Vbat.: min=xxx, ch xxx, max=xxx
Bat.type(0) 2=Cy., 3-/4+, 5-/6+, 7-/8+
Use keys 3,4; 5,6 and 7,8 to set the values
5.4.5.6 PRE-ALARM
Press the following sequence of keys to access the menu: 3, 5, 436215, 4
(315Vmin,336Vp,378Vs) Pre-alarm 5 min.
ADJUSTMENT: 7=-, 8=+
Press key 1 to exit the menu. The menu above will appear with batteries of type 1, 2 or 3.
Voltage values Vmin, Vp and Vs are not fixed values but are a function of the battery discharge current, [Vp=
Vmin+5V+10*(battery current[A]/battery capacity[Ah]).
Keys 7 and 8 can be used to decrease or increase the time to activate the pre-alarm before the system blocks due to
end of battery discharge. Variations in the field of 1 minute are possible from 2 to 254 minutes.
The pre-alarm signal is activated when the remaining calculated time is lower than the pre-alarm value set or when
the battery voltage is lower than the pre-alarm voltage value Vp.
Pre-allarm
A wide safety margin must be provided for the use of the pre-alarm function, since the expected backup
time may not provide for increases of absorption by the output load, and may not make allowance for
sudden, unexpected battery defects.
Value set
Modify values
Minimum battery
voltage
End of discharge voltage pre-alarm
float voltage
Start discharge voltage