Elektro-Automatik PS 8000 DT Series Manual

33
Instruction Manual
PS 8000 DT Series
EN
Date: 04-22-2011
Operating the device
6.4 Adjustingsetvalues
1.Manualoperation
During manual operation, both rotary knobs are used to conti-
nuously adjust the set values of voltage and current from 0%
to 100% nominal value in predened steps (see table). In order
to set the values for OVP and UVL the button Preset UVL/
OVP has to pushed once or twice. In order to set the power
set value (models from 1kW only) the button Preset Power
has to be pushed.
Attention! The OVP value can be lower than the voltage set
value and will cause an OV error as soon as the output is
switched on and the actual voltage reaches the OVP threshold!
Setting values manually can be done in ne or coarse steps,
whereas coarse is default. Fine is required to be activated by
the one of rotary knob pushbuttons and has a step width of 1.
For coarseadjustment, following step widths apply in depen-
dency of the nominal values (also refer to technical specs):
Voltage Current
Nom. val. Coarse Fine Nom. val. Coarse Fine
16V 0,1V 10mV 4A 50mA 1mA
32V 0,2V 10mV 5A 50mA 1mA
65V 0,5V 10mV 10A 0,1A 10mA
80V 0,5V 10mV 15A 0,1A 10mA
160V 1V 100mV 20A 0,2A 10mA
360V 2V 100mV 40A 0,5A 10mA
60A 0,5A 10mA
Power
Nom. val. Coarse Fine
1000W 0.01kW 0.001kW
1500W 0.01kW 0.001kW
Important! The resolution of the set value adjustment in some
cases is, depending on the nominal values, higher than the one
of the output voltage. Thus it can happen that the output voltage
only changes every 2 or 3 steps.
2.Remotecontrolbyanalogueinterface
The analogue interface (short: AI) allows to remotely control
current, voltage and power (models from 1kW), always in com-
bination. It means, that it‘s not possible to adjust voltage by the
AI and the current with the rotary knob on the front at the same
time, or vice versa. Because the OVP threshold can not be
adjusted via the AI, it‘s required to set it manually on the device
before using the remote control. Switching to preset mode with
the preset buttons shows the translated set values, that are
put into the set value pins of the AI as voltages. In order to put
in appropriate set values, the user can either use an external
voltage source or the reference output voltage on pin 3.
Models under 1kW output power don‘t require the power set
value PSEL (see section “10. Analogue interface”) and thus it
must not be given.
In case it is only required to adjust voltage by external means,
the current set value (CSEL) resp. power set value (PSEL) can
be bridged to the reference voltage (VREF).
The AI can be operated with the common 0...5V or 0...10V
ranges, each corresponding to 0...100% nominal values. The
desired control voltage range is selected in the device setup
(see section “8. Device setup”).
Following applies:
0-5V: Reference voltage = 5V, 0...5V set value voltage corre-
spond to 0...100% nominal value, 0...100% actual value cor-
respond to 0...5V at the actual value outputs (CMON, VMON).
0-10V: Reference voltage = 10V, 0...10V set value voltage cor-
respond to 0...100% nominal value, 0...100% actual value cor-
respond to 0...10V at the actual value outputs (CMON, VMON).
Putting in set values that exceed the limit, for example >5V
while the 0...5V range is selected, is intercepted by clipping the
concerned set value to 100%.
Neverinputvoltageshigherthan12Vtothesetvalueinputs!
3.Remotecontrolbydigitalinterfacecard
The digital interface cards allow to set voltage, current and po-
wer, as well as the OVP threshold and undervoltage limit UVL
by means of a PC. When changing to remote control mode, the
device keeps the last set values until they‘re altered. Hence it
would be possible to control only voltage by sending arbitrary
set values and the current set value would remain unaltered.
Set values given by the digital interface (except GPIB) are al-
ways percentage and correspond at 100% (hex: 0x6400), resp.
at 110% (hex: 0x6E00) for the OVP threshold, to the nominal
values of the device.
Using GPIB, any value is given as real decimal value.
Furthermore, the digital interfaces allow to query and set a lot of
other features and values. For details refer to section “9. Digital
interface cards” and the user manual of the IF cards.

Elektro-Automatik PS 8000 DT Series Specifications

General

Brand	Elektro-Automatik
Model	PS 8000 DT Series
Category	Power Supply
Language	English