DSC ELECTRONICS DP-D Gen2 Series User manual

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DP-D Gen2 Series
High Power Laboratory Power Supplies
User’s Manual
by DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
1. Connection
Our devices are pre-configured to the power grid chosen with order (if not specified otherwise, our devices are
manufactured for the EU power grid 230V 50Hz / 400V 50Hz). Subsequent adjustment after delivery is not possible.
Connecting the device to an unsuitable power source will void any warranty.
Note: Devices of the DP-D series in the performance class 4.000W - 9.000W can cause a high starting current when
switched on. Therefore, the use of circuit breakers of classes C, D or K is recommended.
1 Phase / EU Power Grid
Voltage (Recommended)
230V ± 10% AC
Voltage (Max.)
250V AC
Frequency
50Hz - 60Hz
Circuit breaker minimum requirements
The maximum current of the device shall be determined as
follows:
I = (maximum power of the device / 230) + 2
1 Phase / American Power Grid
Voltage (Recommended)
115V ± 10% AC
Voltage (Max.)
130V AC
Frequency
50Hz - 60Hz
Circuit breaker minimum requirements
The maximum current of the device shall be determined as
follows:
I = (maximum power of the device / 115) + 4
3 Phase / EU Power Grid (TN-S Network)
Voltage (Recommended)
380V - 410V
Voltage (Max.)
430V
Frequency
50Hz
Circuit breaker Minimum requirements
The maximum phase current of the device shall be
determined as follows:
I = ((maximum power of the device / 400) / 1,73) + 2

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
2. General
Please read through and understand this Operation Manual before operating the product. After reading always keep
the manual nearby so that you may refer to it as needed. When moving the product to another location, be sure to
bring the manual as well.
Calibration
Before shipment, the instrument has been calibrated carefully in our factory. The calibration procedures and
standards are compliant to the national regulations and standards for electronic calibration. If you have requested a
certificate with your order, this is enclosed with your device. With ordered off-site calibration (DaKKS) the calibration
was not performed in-house, please refer to the laboratory calibration protocol for details.
Warranty
We guarantee that the instrument has undergone a strict quality test before shipment and has passed all prescribed
functional tests. We provide our customers with a warranty period of three years from receipt of the device. During the
warranty period, all repairs, as well as spare parts are always free of charge. The warranty is void in the case of
defects which have been caused by user's fault, or in case of unauthorized opening.
2.1 Safety instructions
This chapter contains important safety instructions that you must follow when operating the instrument and when
keeping it in storage. Read the following before any operation to insure your safety and to keep the device in a proper
condition.
Safety symbols
The following safety symbols may appear in this manual or on the instrument:
WARNING
Identifies conditions or practices that could result in injury or
loss of life.
CAUTION
Identifies conditions or practices that could result in damage to
the instrument or to other properties.
DANGER
High Voltage
ATTENTION
Refer to the Manual
Protective Earth (PE)
Earth (Ground)
2.2 Safety guidelines
Please follow the safety guidelines when using and putting the device into operation in order to prevent safety risks
and to ensure the correct operation of the product.
Before connecting the device to the local power supply, make sure that the device is switched off.
Check if the product is compatible with the local power supply before connecting it.
Be careful on the correct earthing of the device (PE connection)
Do not use the product in humid environments
Do not touch the output terminals of the product with unprotected hands while it is switched on.
Do not use the device in extremely dusty rooms
Do not use the device outside the parameters specified in the data sheet

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
2.3 Unpacking and examination
Our products are delivered carefully packed in cardboard boxes or in wooden crates, depending on place of
destination and the type of the device (dimensions, weight). We pay attention to the environmental compatibility of the
upholstery and packaging materials used and ask you to dispose the filling material correctly if present.
Please unpack the device and check the packaging as well as the product for transport damage. Should you notice
any damage to the packaging or the device, we ask you to log it with photos and inform us immediately.
ATTENTION: If the device has been delivered in a wooden box, please do not dispose it as it can be used for eventual
return transport for service procedures. Also the packaging material of smaller devices can be stored in order to be
used if necessary for a return transport.
3. Product description
The DP-D Gen2 power supply can operate in constant voltage (CV) or constant current (CC) mode within the rated
output range. This allows continuous switching between the modes in response to the load change.
In CV mode, a regulated output voltage is provided. The output voltage remains constant as the load increases while
the output current changes in response to the load changes, until the preset current limit is reached. At that point, the
output current becomes constant and the output voltage drops in proportion to the further increases in load. The
current mode is indicated on the front panel display in area 12.
Similarly in CC mode switching from CC to CV mode automatically occurs from a decrease of the load. A regulated
output current is provided. The output current remains constant as the load decreases while the output voltage
changes in response to the load changes.
3.1 Capacitive load
Note: Can be ignored for devices with optional capacitive reverse current protection.
In the basic version, power supplies of the DP-D Gen2 series are not protected against reverse currents, which can
lead to a reverse current from the capacitive load after switching off the output voltage of the power supply. Never
connect pre-charged capacities to the power supply unit unless you have connected a serial protection diode between
the load and the power supply. The protection diode is always recommended for operation with large capacities,
please pay attention to a correct dimensioning.
3.2 Pulse load
Even if the peak current of the load is within the output power of the power supply, a high pulse load can cause
voltage fluctuations. To compensate these voltage fluctuations, expand your circuit by a serial induction. For low
currents, you can add a capacity in parallel for an even better result ( 1000uF / 1A).

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
3.3 Inductive load
Note: Can be ignored for devices with optional inductive reverse current protection.
If the power supply is used with large inductive loads, voltage spikes with an amplitude of up to 5 times the output
voltage can occur, this may damage the power supply or lead to unstable operation. To protect the power supply from
damage, a freewheeling diode has to be used in parallel with the load.
3.4 Switches
If a mechanic switch is used to connect or disconnect the power supply from the load, electric discharge can occur
during switching on currents over 100A. This may cause unstable output. To prevent this behaviour, connect a RC
circuit to the switch contact point.
4. Front panel description
4.1 DP-D Gen2 front and rear panel
No.
Name
Description
1
Current knob
Adjustment of the current limit value.
2
Voltage knob
Adjustment of the voltage limit value.
3
SET button
Switching between SETUP and DISPLAY modes.
4
OUTPUT button
Enabling the output.
5
Voltmeter
Displaying the real output voltage.
6
Ammeter
Displaying the real output current.
7
Power / Resistance meter
Displaying the real output power and resistance of the load.
8
Set Voltage display
Displaying the set voltage value.
9
Set Current display
Displaying the set current value.
10
Over voltage setting
Displaying the set over voltage setting.
11
Over current setting
Displaying the set over current value.
12
Status display
Displaying the status of the power supply.
CC
Constant current operation mode.
CV
Constant voltage operation mode.
OV
Over voltage protection triggered.
OT
Over temperature protection triggered.
OC
Over current protection triggered.
OUT
Output enabled.
LOCK
Panel locked.
13
Power switch
Powering on the power supply.

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
No.
Name
Description
1
RS-232 Interface
Standard interface.
2
RS-485 Interface
Standard interface.
3
RS-485-Interface
Standard interface.
4
Analog control switch
Enable / Disable external analog control (Optional).
5
Output terminals
Positive and negative output terminals.
6
AC input terminals
AC mains connection.
4.2 DP-G Gen2 front and rear panel with option [Y]
No.
Name
Description
1
Power switch
Power supply power ON/OFF.
2
Screen ON/OFF key
Press to enable or disable the front sceen. While the front screen is turned off, no
inputs over the front panel are possible (locked), remote control remains active.
3
Menu button
Press to enter system settings menu. Short press is again to select a sub-menu.
4
Tab key
Cycle through tabs in the menu section.
5
Lock key
Press to lock front panel and remote control to the currently set state. Inputs either
through the front panel, or remote control, will be discarded.
6
Store button
Save a screen shot of the curent display to the attached USB Stick.
7
USB Host port
Can handle USB sticks with FAT-32/16 and Ex-FAT format.
8
← key
Backspace.
9
Output ON/OFF key
Press to turn ON/OFF the output of the power supply.
10
< > keys
Cursor keys. Press to move cursor to the left or right.
11
Rotary knob
Turn anti-clockwise to increase a value, or clockwise to decrease a value. After the
value is set, make a short press on the knob to save the setup and exit setup mode.
12
Numeric keypad
Input keys for numbers 1 to 9 and decimal point.
13
Function keys F1-F4
Press the key to select its corresponding parameter.
14
LCD display screen
-

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
No.
Name
Description
1
RS-232 Interface
Standard interface.
2
RS-485 Interface
Standard interface.
3
RS-485-Interface
Standard interface.
4
Analog control switch
Enable / Disable external analog control (Optional).
5
Output terminals
Positive and negative output terminals.
6
AC input terminals
AC mains connection.
5. Operation instructions for devices without option [Y]
The DP-D Gen2 power supply can be optionally equipped with external analog control and feedback connections,
which allow to regulate and measure the set and real output values of the power supply externally. At the same time,
either external analog control or digital and the front panel controls can be used, thus make sure to select your desired
control method with the switch 4 on the rear panel before operation.
Caution: Always check that the output is switched off and the capacitors are discharged before connecting the load to
the power supply.
5.1 SET Button operation
1. Turn on the power and check that the output is off.
2. Press the SET button to enter SETTING mode.
3. Now adjust the output voltage and current with the voltage and current knobs.
4. Press the SET button once again to select the over voltage and over current settings.
5. Now adjust the over voltage and over current protection values.
6. Press the SET button once again to save all settings.
7. Turn on the output by pressing the OUTPUT button.
5.2 CV Constant voltage operation
NOTE: Pressing the voltage or current knob shortly switches between coarse and fine tuning.
1. Turn on the power and check that the output is off.
2. Press the SET button and set the desired voltage and current limit according to point 5.2.
4. Turn on the output by pressing the OUTPUT button.
5. The CV indicator lights up.
6. The power supply is now operating in constant voltage mode (CV).
The output voltage remains stable while the current is adjusted automatically. If the current exceeds the maximum
limit set, the power supply switches to CC mode and reduces the voltage not to exceed the maximum current limit.

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
5.3 Constant current operation
NOTE: Pressing the voltage or current knob shortly switches between coarse and fine tuning.
1. Turn on the power and check that the output is off.
2. Press the SET button and set the desired voltage and current limit according to point 5.2.
4. Turn the output on by pressing the OUTPUT button.
5. The CC indicator lights up as soon as the output current reaches the current limit set.
The power supply now operates in constant current mode (CC). The output current remains stable while the voltage is
being adjusted automatically.
5.4 Locking the front panel
Press the current knob for 3 seconds to lock or unlock the front panel. The current and voltage knob as well as the
SET button are not operational when the front panel is locked.
6. Operation instructions for devices with option [Y]
The DP-D Gen2 power supply can be optionally equipped with external analog control and feedback connections,
which allow to regulate and measure the set and real output values of the power supply externally. At the same time,
either external analog control or digital and the front panel controls can be used, thus make sure to select your desired
control method with the switch 4 on the rear panel before operation.
Caution: Always check that the output is switched off and the capacitors are discharged before connecting the load to
the power supply.
6.1 Set voltage
Press [F1] key to enter voltage setup mode (V-Set), now the cursor appears on voltage value position. The voltage
value can be set up in two ways:
- Adjust voltage value by rotary knob
- Input voltage value through the keypad
Press < > keys to move the cursor to the position that you would like to adjust, this also works with the rotary knob.
When the voltage value is adjusted to the desired value, short press the rotary knob to store the value and exit setup
mode.
6.2 Set current
Press [F2] key to enter current setup mode (I-Set), now the cursor appears on current value position. Perform the
current setup the same way as described in the voltage setup section above.
6.3 Set OVP
Press [F3] key to enter over voltage protection (OVP) limit setup mode (V-Limit). The cursor appears on voltage limit
value position. Perform the current setup the same way as described in the voltage setup section above.
6.4 Set OCP
Press [F4] key to enter over current protection (OCP) limit setup mode (I-Limit). The cursor appears on current limit
value position. Perform the current setup the same way as described in the voltage setup section above.
6.5 Set output On/Off
After power on, the power supply output status is defaulted to OFF. Output has to be turned on by pressing the on/off
key. Short press the [ON] key to turn on the output. The “ON” icon appears on the lower left corner of the LCD screen
when output is turned on. Short press the [ON] key again to turn off output. The “Off” icon appears on the lower left
corner of the LCD screen when the output is off.

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
6.6 Panel lock
The panel lock function is designed to avoid inputs by mistake.
Short press [Lock] key to lock operations of front panel keys and knobs. The “Lock” icon appears the lower left corner
of the LCD screen when the front panel is locked. Inputs of all keys and knobs are invalid, except operation of the [ON]
key. If output is on during panel lock, the [ON] key can be pressed to turn off the output. However, output cannot be
turned on again by pressing the [ON] key while the panel is locked. The front panel can be unlocked by pressing the
[Lock] key again.
6.7 System setup
Press the [Menu] button for two times to select “System Setup” mode.
6.7.1 Set output mode
There are four output modes to be chosen from. Press the [Tab] button to select the “MODE” menu. Use the rotary
knob to select an output mode from the “Mode Select” setting.
Normal mode: In this mode, output voltage and current is set up by manual configuration on front panel or through
external interfaces.
Cycle mode: In this mode, maximum 999999 steps can be set into one automatic running cycle. Output voltage,
current and time can be set up in each step.
V Slope mode: In this mode, voltage rise/fall time can be adjusted.
I-Slope mode: In this mode, current rise/fall time can be adjusted.
Depending on the mode chosen, the sixth tab in the main menu gets replaced by the appropriate configuration utility
for the mode chosen.

DP-D Gen2 Series User’s Manual
Version 25.02.2021
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
DSC-Electronics Germany • Georgstraße 36 • 53111 Bonn
6.7.2 Serial communication
Press the [Tab] button to select the “UART” menu. In this menu, parameters of baud rate, stop bit, parity bit and
communication ID can be adjusted. Press < > keys to move the cursor to select a parameter, and then use the rotary
knob to set the value. Communication ID defaults to 0.
6.7.3 LAN Communication
Press the [Tab] button to select the “LAN” menu. LAN communication settings include automatic IP address
allocation “DHCP” and fixed IP address settings “Fixed IP”, as well as subnet mask settings “NM” and default gateway
settings “GW”. Also the currently assigned IP address and communication protocol is displayed. The host port number
defaults to 502.