Instructions

© EA Elektro-Automatik GmbH & Co. KG , DE-41747 Viersen , Helmholtzstr. 31-33 , TEL. [phone], FAX. [phone]
6
Important Details
Technical specifications
Notice
The continuing development of our products can be the reason that the
unit described in this manual may be slightly different from the one being
delivered. Only data with tolerances or boundaries are guaranteed. Data
without tolerances are for information only and not guaranteed.
switchable, 115/230V
50 / 60Hz
3,15A T at 230V
6,3A T at 115V
0...65V
approx. 3.2V
<10mV
<1mV
<2mV
rms
<1ms
<1ms
0...2.5A
approx. 0.13A
<4mA
<2mA
rms
0...71.5V
0...2.5A
Output shutdown
Potentiometer coarse / ne
Potentiometer coarse / ne
Trim pot. 10 turns
Pushbutton (Preset)
LED 7-segment 3-digit
LED 7-segment 3-digit
LED 7-segment 3-digit
LEDs
Signal
0...10V
0...10V
open collector
open collector
Signal
0...10V
0...10V
12...15V 100mA
10.0V 5mA
open collector
open collector
open collector
0...40°C
-20...70°C
<80% without condensation
UTA12
Power
Voltage
Frequency
Fuse
Output
Voltage
- Fine adjustment range
- Adjustment range
- Stability 0...100% Load
- Stability
+
10% UE
- Ripple
- Regulation 10...90% Load
- Regulation 90...10% Load
Current
- Adjustment range
- Fine adjustment range
- Stability 0...100% UA
- Ripple
Protection
- Over voltage protection (OVP)
- Over current protection (CC)
- Over temperature protection (OT)
Control elements
Voltage adjustment
Current adjustment
Over voltage protection
Preset OVP / Current
Indicators
Voltage
Current
Over voltage protection
Status indication
Analogue interface
Inputs
Voltage 0...100%
Current 0...100%
Analogue interface On/Off (SEL-enable)
Output On/Off (Standby)
Outputs
Voltage 0...100%
Current 0...100%
Supply voltage +VCC
Reference voltage VREF
Over voltage indicator (OVP)
Over temperature indicator(OT)
Control mode (CV/CC)
Miscellaneous
Operating temperature
Storage temperature
Relative humidity
Accessories
USB interface
Unpacking
Check the contents after unpacking for missing parts or ac-
cessories and the unit for any apparent mechanical damages
and loose parts inside the unit. In case of a transport damage
please inform the seller immediately. In that case do not take
the unit into operation.
Commissioning
For safety reasons the unit may only be operated at a mains
power connection provided with a safety ground or via an
insulating transformer safety class 2. The air in- and outlets
on the back side may never be obstructed in order to ensure
proper cooling.
Mains power voltage selection and fuse replacement
Before putting the unit into operation make sure that the avai-
lable mains power voltage and the setting of the input voltage
selector on the back have the same value (115 or
230 V). If it is required to adjust the input selector to the mains
power voltage value, an input fuse with an appropriate voltage
value has to be t as well. The fuse may only be changed or
replaced whilst the unit is disconnected from the mains power
line. The fuse and the respective values are shown on the back
side of the unit.
General
The power supplies of series PS3000B 160 Watts and 320
Watts are transistor-line regulated. They provide a constant
output voltage and current with low ripple, fast regulation
and several additional features. A two-stage transformer with
automatic change-over is used to reduce the heat dissipation
on the MOS-FET power stages. The cooling is supported by
temperature controlled fans. All models are equipped with an
analogue interface for external control via 0...10 V or the digital
USB interface (EA-UTA 12, USB-to-Analogue).
Controls and displays
For an overview see page 12 and following.
Output voltage and current can be preset through coarse and
ne potentiometers placed on the front panel or via 0…10V
through the analogue interface. The respective values are
shown on the 3-digit 7-segment LED meters or via the analogue
interface (0…10V).
Whilst pushing the preset key, the preset current and the
preset overvoltage protection value (i.e. OVP, setting through
the 10-turn potentiometer on the front), are displayed on the
LED meters.
The regulation mode is indicated via two LEDs.
LED CV = constant voltage mode
LED CC = constant current mode
Furthermore, the LEDs on the front panel show the following
operation conditions.
LED Standby = Shut down by analogue interface
LED OVP = Shut down by overvoltage (OVP)
LED OT = Shut down by overheating (OT)
LED External = Analogue interface active
Output terminals
The output is provided through two safety sockets on the front
panel and in addition via screw terminals on the rear side. The
connections for “remote sensing” .i.e. to compensate the voltage
loss on the load wires, are placed on the rear side as well.