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Output Power connections:

It does not cover failures such as an internal short circuit in the secondary side of the power supply. In such a -virtually

nearly impossible - case, the defective unit becomes a load for the other power supplies and the output voltage can

not be maintained any more. This can only be avoided by utilizing decoupling diodes which are included in the

Redundancy Module MR220. Recommendations for building redundant power systems: a) Use separate input fuses

for each CBI. b) Monitor the individual CBI units by three LED. Each unit has two relay: Mains or backup and Low

Battery or Battery Replacement (faulty situation). This feature reports a faulty unit; see Relay Contact Rating for any

technical detail. c) When possible, connect each power supply to different phases or circuits.

Output Load (Mains INPUT ON)

The output LOAD in normal mode, Mains INPUT Vac Voltage present, follow the charging battery dc output voltage.

The minimum and maximum range stabilized are the following:

- Dip Switch selection 12V:11 – 14,4 Vdc; (Without battery connected out. Voltage fixed at 12Vdc)

- Dip Switch selection 24V:22 – 28.8 Vdc; (Without battery connected out. Voltage fixed at 24Vdc)

Thanks to the All In One units, it will be possible to manage the power. The available power, is automatically allocated

between load and battery: supplying power to the load is the first priority of the unit; thus it is not necessary to double

the power, and also the power available for the battery will go to the load if the load requires so:

in "Power Boost Mode" the maximum current on the load output is the 2 times the rated current 2 x In (I

continuous operation is 3 times the rated current 3 x In (I

is electrically protected against overload and short circuit.

- In "Power Boost Mode", if the current of the battery generate current to the load for a time more than 4 minutes and

Vbat<25V, the device give message (8 Blink), consequently means that the battery it is going to unloading.

- If the Mains Input Voltage fall below a Threshold level (50% of the Typ. Vac input) the battery it is immediately

connected to the Output Load, without any interruption.

- voltage dips: In this situation the voltage in the output load it is the same of the battery.

- To Avoid deep battery discharge, the battery will supply the load until battery voltage reaches 1.5 V/cell. Below

this level the device automatically switches off to prevent Deep discharge and battery damage.

Normal connection

Typical application for All In One device, one output for LOAD

"DC Bus", one Input/Output for connection to the battery.

N°1 battery (12 Vdc) for 12V;

N°2 battery (12 Vdc) connected in Series for 24V;

Parallel connection "Redundancy"

Power supplies can be paralleled for 1+1 redundancy to obtain a

higher system availability. Redundant systems require a certain

amount of extra power to support the load in case one power

supply unit fails. The simplest way is to put two CBI in parallel. In

case one power supply unit fails, the other one is automatically

able to support the load current without any interruption. This

simple way to build a redundant system has two major

disadvantages:

- The faulty power supply can not be recognized.

- The Diagnosis LED will give the informations about the status

of the Load and the Battery (see Display Signals for more data).

Serial connection:

a) It is possible to connect as many units in series as needed,

providing the sum of the output voltage does not exceed 150Vdc.

b) Voltages with a potential above 60Vdc are not SELV any more

and can be dangerous. Such voltages must be installed with a

protection against touching. c) For serial operation use power

supplies of the same type. d) Earthing of the output is required

when the sum of the output voltage is above 60Vdc. e) Keep an

installation clearance of 10 mm (left/right) between two power

supplies and avoid installing the power supplies on top of each

other. Note: Avoid return voltage (e.g. from a decelerating motor

or battery) which is applied to the output terminals.

= 2I

+ I

) for 4 seconds; after this parameter the devices

load

batt

= I

+ I

) in

load

batt