VOLTEQ HY1520EP Bedienungsanleitung
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SWITCHING DC POWER SUPPLY
USER MANUAL
SINGLE OUTPUT SWITCH MODE DC POWER SUPPLY
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Please read this manual carefully before operating the power supply.
1. Introduction
Volteq HY series single output switch mode DC power supplies are regulated variable DC power supplies
designed to provide the most often required DC outputs in scientific and research institutions, schools and colleges,
industrial R&D, as well as manufacturing and testing.
The DC power supplies in this series have high efficiency, superior load and line regulation, and low ripple noise.
These power supplies have the highest level of protection including over voltage, over temperature, and reverse
voltage protection. They can act as constant voltage as well as constant current sources. Because of the excellent
protection, these power supplies are widely used for electroplating, anodizing, electroforming, electrowinning, battery
charging and equalizing, and other applications requiring excellent reliability and robustness.
The EP series described in this manual are microprocessor-controlled, based on the popular Arduino Micro board.
The power supplies are fully customizable and programmable with Arduino IDE. The power supply comes with
built-in software with extensive features. If needed, the user can easily build custom software with Arduino IDE and
basic C programming.
2. Overview
2-1 General Operating Parameters
AC Input: 110V/220V±10% 50/60 Hz (selectable)
Rating: See table 2-1
Operating environment: Indoor use
Altitude up to 2000 m
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Temperature: -10°C to 40°C
Relative humidity:<80%
Table 2-1
Model Max. Voltage
Max. Current
Fuse Rating
Reverse
Polarity
Protection
Output Relay
Weight (lbs)
HY1520EP 15V 20A 10A/250V Yes Yes 14
HY1530EP 15V 30A 10A/250V Yes Yes 15
HY3010EP 30V 10A 10A/250V Yes Yes 14
HY3020EP 30V 20A 10A/250V Yes Yes 15
HY3030EP 30V 30A 15A/250V Yes Yes 15
HY3050EP 30V 50A 15A/250V No No 17
HY5020EP 50V 20A 15A/250V Yes Yes 17
HY12010EP 120V 10A 15A/250V Yes Yes 15
HY30005EP 300V 5A 15A/250V No No 17
2-2 Panel Descriptions
Front Panel
(1) Status Indicators:
a. ON – lights up when the output is enabled.
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b. CC – lights up when the power supply is in constant current mode.
c. CV – lights up when the power supply is in constant voltage mode.
d. OV – lights up when the power supply is in over-voltage protected state.
e. OT – lights up when the power supply is in over-temperature protected state.
(2) Power switch: use this button to turn on or off the power supply.
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(3) LCD display: this is a 4-line 20 characters display. The first line shows special messages; the second line shows
the set value of current (in this case 0.500A) and the actual output value (in this case 0.084A); the third line shows
the set value and actual output value of voltage; the last line shows the function keys.
(4) Adjustment Knob: use this knob to change set value for voltage, current, and OV level.
(5) Function keys: F1 to F4 corresponding to the values of the 4
th
line of the display.
(6) User defined function keys: 10 push button keys are provided: M1 to M10; these keys are not used in the software
that comes with the power supply. They can be defined by custom software and used for controlling the power
supply, e.g., you may want to define M1 to run a special sub program, or enable measurement of sensor input to
the Arduino Micro board, etc.
(7) Output terminals: use these terminals for output less than 10A only, for larger output current, use the back
terminals. Notice that the ground terminal is connected to the case, as well as the AC ground, while the output is
between + and – only. The power supply comes with ground and – terminals shorted to reduce ripple noise, you
should remove this short bar if you are doing electrochemical work or any other application that require isolation
of the – terminal from ground.
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Warning: the front terminals are rated for less than 10A only. Use only the rear output terminals if current
draw is more than 10A, and tighten the connections to avoid damages caused by large contact resistance.
Back Panel
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(1) Positive output terminal.
(2) Negative output terminal.
(3) Voltage signal for remote sensing: if you need remote sensing, connect the sensing wire from the positive end of your
load to this connector.
(4) Ground terminal.
(5) Connector for I/O pins: these pins are directly connected to some of the I/O pins of the Arduino Micro board. See 5-2
for more details.
(6) USB connector for Arduino Micro.
(7) RS485 Connector.
(8) Remote Sensing Enable/Disable: push this pin to enable or disable the remote sensing; when remote sensing is enabled,
RS will appear on the first line of the LCD Display, and the voltage shown is the actual voltage across load.
(9) Arduino Reset: push this pin to reset the Arduino Micro controller.
(10)
OV reset: push this pin to reset the power supply when it’s in over-voltage protection mode.
(11) AC voltage selection switch: use this to change the input AC voltage between 110V and 220V.
Before plugging the
power supply into the wall outlet, make sure that the AC selection switch shows the correct value in the middle, i.e.
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if you are plugging into 110V AC outlet, the AC selector switch itself should show 110 in the middle.
(12) Power socket and fuse holder: this is for AC input; for some of the models, we use cables directly to accommodate the
higher amperage rating.
(13) Cooling fan: cooling fan will automatically come on briefly during start and when needed during normal operation. It
is important to allow enough space between the back of the power supply and wall to allow sufficient ventilation.
2-3 Key Features
Basic Operations:
• Constant current (CC) and constant voltage (CV) operation.
• Output on/off control.
• Digital panel control.
• 6 groups of memories
• Digital voltage and current settings
Protection features:
• Over-voltage protection.
• Over-temperature protection.
• Reverse-polarity protection.
Interface:
• USB
• RS485
Advanced Features:
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• Remote sense.
• Active feedback control.
• Amp-minute control.
• Timer control.
• Voltage ramp.
• Automatic battery charger.
• Digital voltmeter.
• Transient measurements.
2-4 Technical Parameters
1) Voltage stabilization: ≤0.2%
2) Current stabilization: ≤0.5%
3) Load stabilization: ≤0.3%
4) Ripple and noise: ≤1%( RMS)
5) Display accuracy: ±1%±1 digit
3. Operation Instructions
3-1 Precaution
1) AC input: AC input should be within the range of line voltage of 110V/220V at 50/60Hz.
Warning: To avoid electrical shock, the power cord protective grounding conductor must be connected to ground.
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2) Warning: Do not connect any load to the power supply before it's turned on. Likewise, make sure to
disconnect the load before shutting down the power supply. Damages to the power supply can happen if you do not
follow this. Such damages are not under warranty.
3) Warning: If you are running an inductive load like magnetic coils, DC motors, stepper motors, etc., make
sure to connect your load with the output set to zero and change the voltage/current slowly, and NEVER turn the
power supply on or off with a inductive load connected!
4) Installation: For better heat dissipation, there should be enough space around the power supply. The two sides and
back of the power supply should have 10cm space at least. Some models come with fan controlled by thermistor that
will turn on automatically when the temperature of the heat sink is above 45°C. The power supply comes with
over-temperature protection, and will disable itself when the inside temperature of the device is too high. The power
supply resets itself once the temperature falls below the limit. To ensure proper operation, make sure the ambient
temperature is below 40°C and there is sufficient ventilation.
5) Over-voltage protection: when the OV light is on, the power supply is disabled and in over-voltage protected state,
please follow procedures below (3-3) to reset it.
3-2 Setting Current, Voltage, and OV Limit
There are two ways of setting the output limits, via serial monitor through the USB connection using Arduino software,
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