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Unilab Laboratory

PROGRAMMABLE AUTOMATIC

POWER SUPPLY UNIT

DL 1067

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DL 1067

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GENERAL NOTES

The DL 1067 power supply unit is suitable for regulating the excitation voltage of electric machines

and brakes. It is essentially composed of a motor-driven variator, a control board and a single-phase

bridge.

It can be either internally controlled in manual mode or externally controlled in automatic mode

through the data acquisition system and the relevant software.

TECHNICAL FEAUTURES

Automatic power supply unit having the following features:

Continuously adjustable output voltage: 0 to 210 V

Fixed output current: max. 2A

Magneto-thermal protection

Analog signal INPUT terminals and connectors: 0 to 10 V

OPERATING INSTRUCTIONS

Check the presence and efficiency of the fuse. Check that the main voltage corresponds to thevoltage shown on the plate (220V + E), then connect the power chord to PR1 socket.

Operate the mains switch J1. The pilot lamp of the switch on the front panel must turn on.

MANUAL OPERATION

Open the switch J1, counter-clockwise turn the voltage potentiometer P1 and set the function switch

J2 to manual position MAN.Connect a 250V range dc voltmeter to B4 and B5 terminals respecting the polarities.

Close the switch J1 and, by clockwise turning the potentiometer P1, read the output voltage on the

voltmeter.

AUTOMATIC OPERATION

Remove the supply of the equipment according to previous point.

Set the switch J2 to AUTO.

Connect the terminals B1 and B2 to the data acquisition system as required by the (software)program and close the switch J1.

The 0 to 210V, 2A output is protected by the magneto-thermal switch J3.

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LAYOUT OF THE CONTROL DEVICE

J1 Pilot lamp

P1 Potentiometer for variable regulation

J2 Control system selection switch

J3 Magneto-thermal protection of variatorB1, B2 Terminals for system connection

B3 Ground terminal

B4, B5 Output terminals

PR1 Main socket with protection fuse (rear of panel)

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MAINTENANCE

The unit doesnt require any special maintenance operation.

It can be checked without any difficulty.

In case of faulty operation, DISCONNECT THE MAINS CONNECTION.Then open the unit and access to the inside.

It is enough to check that the components and the connections are efficient according to the electric

diagram.

The motor is controlled through an electronic board on which a fuse-holder with fuse is assembled.

Check the fuse and the connections. If the equipment doesnt operate it is suggested not to change

the calibrations of the electronic board, otherwise the guarantee would be lost.

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1996 - 2013DE LORENZO SPA - Printed in Italy - All right reserved

DE LORENZO SPA

V.le Romagna, 20 - 20089 Rozzano (MI) Italy

Tel. ++39 02 8254551 - Fax ++39 02 8255181

E-mail:info

@delorenzo.itWeb sites: www.delorenzoglobal.com - www.technical-education.it -

www.delorenzoenergy.com