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ManualsBrandsEA ELEKTRO-AUTOMATIK ManualsLaboratory & Bench PSUsEA-PSI 8360-30 2U rack mount programmable power supply Synchronised 0 - 360 Vdc / 30 A, 3000 W Rac

Irrtümer und Änderungen vorbehalten

10.3 Mains undervoltage or overvoltage occurs

ThedevicefeaturesanactiverecticationwithPFCandawide

range input. This means, it can be operated at input voltages

of approx. 90V...264V, respectively 180V...264V. Input voltages

below 90V resp. 180V are considered as blackout, respectively

as complete switch-off and will store the last condition, as well

as switch off the power output.

Permanent input undervoltage or overvoltage must be

avoided!

Important! Models with 1500W nominal power will derate the out-

put power down to 1000W at input voltages below approx.150V.

At models with 3000W nominal power the derated output power

will be 2000W, starting at around 205V.

10.4 Functions of terminal System Bus

The 8pole terminal System Bus is located on the rear and is used

to connect leads for remote sense or to wire multiple devices for

series or parallel connection.

Pin assignment:

1 : Sense +

2 : Sense -

3 : Master output Current

4 : Master output Voltage

5 : Slave input Current

6 : Slave input Voltage

7 : Share Bus

8 : Ground

Using the power supply

Attention! The functions of pins 3-8, as described in the

subsequent paragraphs, are only available at models

from 1000W output power (except the 720V model).

Following wiring schemes can be realised:

10.4.1 Series connection in Master-Slave mode

For a series connection, it is recommended to use only devices

with identical output current, else the unit with the lowest nominal

outputcurrentwilldenethemaximumcurrentofthesystem.

One unit is always the master of the next unit, which becomes

slave, and so on. When connecting more than two units, it is

recommended to consider one certain unit as master and any

other as slave. The slave(s) are controlled by the master via the

slave input pins 3 and 4 of the terminal System Bus. Voltage and

current can be controlled simultaneously, but also seperately.

For an example wiring see gure 5. Voltage and current are

here given by the master. In case only one of both, voltage or

current, is going to be controlled, the other set value should be

set to 100%.

Inordertocontrolthewholesystemremotely,itissufcientto

control the master via its analogue or digital interface. When

reading actual values, the current monitor value will represent the

overall system current, but the voltage monitor only the output

voltage of the master. In order to get accurate readings, either

the actual voltage is multiplied by the number of unit in the series

connection (only applicable if all are same type) or all units will

have to be read seperately.

Figure 5. Series connection in Master-Slave