User manual

ManualsBrandsEA ELEKTRO-AUTOMATIK ManualsLaboratory & Bench PSUsEA-PSI 8160-04 T 1 Output 640W Programmable DC Power Supply, Switched Mode, Tower

Using the power supply

An alarm will shut down the output and has to be acknowledged

before the output can be switched on again (also see section

„6.14 Acknowledging alarms and warnings“).

A warning remains in display as long as it is not acknowledged

and can temporarily switch off the power output, if „auto ON“ has

been activated for a particular error.

A signal is only displayed and only as long as the cause of the

errorispersistent.Ifmorethanonesignalisnotied,theywill

cycle in the display in a 2s interval.

6.14 Acknowledging alarms and warnings

You can acknowledge alarms and warnings with the

ACK button.

If you acknowledge a warning with this button while it still per-

sists, it is turned into a signal and displayed furthermore. Else it

is deleted and not displayed anymore .

6.15 The function manager

The function manager is used to create functions which can con-

trol the unit automatedly. The user can build curves of set values

after the function f(U, I, ∆t) with it. The function manager sets the

set values in an interval of 2ms. This means, that only times for

∆t of a multiple of 2ms can be set, for instance 50ms. If voltage

or current changes between two points, a ramp which consists

of a certain number of steps (∆t : 2ms, results in 25 steps for the

example above) is built.

The function manager controls the power supply and puts the

set values, which have been congured in the function. The

actual progression of the output values is however determined

by the load.

Explanation of the used terms:

Function = the function consists of up to 5 linked sequence

headers (starts in menu atSetup function), which can consist

ofupttovedifferentlycongurablesequences.

Function layout = the configurations in the function lay-

out are used by the function manager to set the operation

(U/I/P or U/I/R) mode for the power supply. Furthermore, the

repetition rate of the function and the arbitrary order of the se-

quences are set here. In dependency of the function layout the

function manager processes the next sequence after the previous

one has been processed and uses the settings from the sequence

control of the next sequence.

Sequence

= consists of the sequence control and 10 sequence

points. If the function manager is going to process a sequence,

itrstofallsetstheparametersgiveninthesequencecontrol.

The 10 sequence points are set conse-cutively and the whole

process is repeated as often as the repetition rate for the particular

sequence is set to.

Sequence control (Sequence control)=denestherepetition

rate of the sequence and the maximum set value of power during

the processing of the sequence, as well as internal resistance

(optionally, has to be unlocked)

Sequence point = a sequence always consists of 10 sequence

points. The points are processed (=set) conse-cutively by the

functionmanagerfrompoint0topoint9.Thedenitionofthe

sequence point determines, which set values for voltage and

current have to be reached after the given time ∆t. This enables

the user to create step functions by setting the time to 0ms or

2ms, as well as ramps with times from 4ms to 99h99m. A time

value of 0ms is settable, but results in a real time value of 2ms,

because set values are only set in 2ms steps.

Additionally to the function itself you can set up and use the

supervision circuits in the proles.The function manager can

also be controlled via the communication with the interface cards

with one additional feature: you can set a stop point at which the

function shall stop.

Overview of the function manager display: