JOY-it JT-DPM8600 DC/DC Voltage Converter

1. Safety Note

⚠️ Our product is suitable for up to 75 volts DC. Working with voltages above 60 V DC is reserved for trained electricians due to the risk of electric shock, which can lead to serious injury or death. Non-electricians must use a voltage source below 60 volts DC.

2. General Information

Dear customer, we would like to thank you for choosing our product. Below you will find important information on commissioning and use. Should any unexpected problems arise during use, please do not hesitate to contact us.

The DPM 8600 series comprises programmable voltage converter units characterized by high performance, compact design, and optimal construction. They feature TTL or RS485 communication protocols and support the Modbus RTU communication protocol, enabling the development of custom protocols and providing a versatile solution for design and test requirements.

A special feature of the DPM8600s is the ability to control them with a wireless remote control. This remote control has a 2.4-inch LCD screen, displays many parameters, is easy to operate, contains a rechargeable lithium battery, and offers a range of up to 10 meters. Multiple power supplies can be controlled simultaneously.

The voltage converter unit is suitable for a wide range of applications, for example as an ammeter, smart meter, LED driver, voltage regulator for solar systems, or in industrial control systems.

If the device is damaged or the scope of delivery is incomplete, please contact our support team immediately and do not use the device. Using the device if it is damaged can lead to short circuits or ignition of the device.

3. Technical Specifications

ATTENTION: In the following description, DPM8624 is used as an example. The DPM8605 works in a similar way to the DPM8624.

4. Module

Description of the module's components: Fan, Positive Entrance, Negative Input, Positive Outcome, Negative Output, Communication Interface, Power Switch, Function Buttons, Segment Display (showing voltage and current readings), and Status Display (showing indicator LEDs).

5. Display Functions

The device display shows various values and settings. Key functions include:

• 05.00: Shows voltage values.
• 03.00: Shows current values.
• 1-SA-10: Sets the upper limit for voltage and current.
• 1-SA: Sets the lower limit for voltage and current.
• 1-SA 12: Deletes upper and lower limits of voltage and current.
• 2-dF N: No factory settings.
• 2-dF Y: Resets the device to factory settings.
• 3-0N 0: Output is activated manually when the device starts up.
• 3-0N 1: Output starts automatically when the device is started.
• 4-Fd 0: Disables fast response.
• 4-Fd 1: Activates fast response.
• 5-CS 0: Simple communication protocol.
• 5-CS 1: Communication with Modbus.
• 6-bd: Possible to select baud rates: 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, 115.2 (Kbps).
• 7-Ad 01: Sets communication address (01-99).
• 8-CH 01: Sets communication channels (00-30).
• -Ld- 0: Retrieves values from memory location 0-9.
• -SA- 0: Saves values to memory location 0-9.
• Corr: Calibrates voltage and current.
• -°C- 0280: Displays the temperature of the device.

6. Status Display

The status indicators on the device provide information about its operation:

• PT LED: Indicates overheating protection. Lights up if the temperature exceeds 80°C, activating the protection and shutting down the appliance.
• CV LED: Indicates constant voltage display. Lights up when a constant voltage is output.
• CC LED: Indicates constant current display. Lights up when a constant current is being output.
• COM LED: Indicates communication activity. Lights up when communication is taking place.

7. Setup

To ensure the device operates correctly, first connect the input and output correctly, ensuring the input voltage is sufficiently high for operation.

ATTENTION: The input voltage must be 0.5 V higher than the output voltage.

You can now change the voltage and current values. The 'V' display shows voltage in volts, and the 'A' display shows current in amperes. The LCD shows voltage with 2 decimal places (e.g., 00.00) and current with 3 decimal places (e.g., 0.000). Pressing [OK] activates the device, and the CV and CC LEDs will light up to indicate active output.

The standard setting is 5 V and 3 A.

8. Operation and Settings

To set values:

1. Press [SET] so that a value starts to light up blue.
2. Press [UP] or [DOWN] to select the next value.
3. The value can be changed using the [UP] and [DOWN] buttons.

To switch the output on and off, press [OK]. If the load current is below the set maximum current, the output operates in constant voltage mode, and the CV LED lights up. When the load current reaches the set maximum current, the output current equals the set current, and the device switches to constant current mode, causing the CC LED to light up.

Press [UP] or [DOWN] to access the save and load menu, temperature display, and calibration menu.

To load saved values, press [SET], select data records using [UP]/[DOWN], and press [OK] to confirm.

Press [UP] or [DOWN] to return to the menu. To calibrate the device, press [OK]. Calibration functions are explained in detail below.

Press [DOWN] to exit the temperature display.

9. Calibration

1. If the set voltage is higher than 20 V, the output is activated, and with no load connected, the output current can be calibrated to zero using the 'Corr.' function. For example, if the output voltage is set to 25 V, the current is zero-calibrated at this voltage.
2. If the output is deactivated and calibration is activated, the zero points are set for both voltage and current.
3. A short circuit on the activated output with a maximum output current above 2 A results in the calibrated value corresponding to the previously set value. For instance, if the output current is set to 3 A, the output is calibrated to 3 A accordingly.

10. Temperature Display

The temperature display reflects the appliance temperature, regulated by the fan speed and overheating protection. If the temperature exceeds 40 °C, the fan starts working and increases its speed by one degree for every additional 5 °C. At 60 °C, the fan reaches its maximum speed. A temperature of 80 °C activates the overheating protection, which switches the appliance off automatically.

11. SET Menu

Press and hold [SET] to open the SET menu. You can switch between menu items by pressing [UP] or [DOWN]. You can set values using [UP] and [DOWN] and must press [OK] to confirm settings.

• Voltage and Current Limits: This menu item declares voltage and current limits. '10' signifies the upper limit, '11' the lower limit, and '12' the deletion of limits.
• Factory Reset: This menu item allows resetting the device to factory settings. Selecting 'Y' performs a reset, while 'N' retains current settings.
• Activation Status: This menu item serves as a status interface. It allows setting whether the output is activated automatically ('1' option) or must be activated manually ('0' option) when the device starts up.
• Response Time: This menu item declares the response time of the device when discharging. '0' indicates a slow response time, and '1' a fast one.
• Communication Protocol: This menu item contains the communication protocol. '0' signifies the simple communication protocol, and '1' means the Modbus communication protocol.
• Baud Rates: Here you can change the baud rates. There are 7 different rates available in Kbps.
• Communication Addresses: You can enter local addresses in this menu item. There are 99 communication addresses available.

Upper and Lower Limit of Voltage and Current: These limits can be adjusted in the SET menu. For example, if you set 50 V and 5 A on the main screen and then activate the upper limit, you cannot increase the values beyond 50 V and 5 A. The lower limit works similarly, preventing values from being set below these limits. If both limits are active, changes are only possible within this defined range.

12. Communication Protocol

The device supports two communication protocols: a simple protocol and the Modbus protocol, both selectable in the SET menu. The simple protocol is an in-house development characterized by its user-friendliness. The Modbus protocol corresponds to the industry standard.

13. Fast Response

After activating the quick response function, the response time of the device is shortened when the voltage is reduced. For example, reducing the output voltage from 30 V to 5 V takes 5 seconds without the quick response function. With this function activated, the device reduces the voltage within just 1 second.

14. Activation of Standard Status

This setting determines whether the output is automatically activated or deactivated after the device starts up. If the function is activated, the output is activated immediately after start-up. If deactivated, the output must be switched on manually.

15. Key Lock

The button lock is activated by pressing and holding the [OK] button. Another long press releases the lock again.

16. Software

Software for the device can be downloaded from the website: www.joy-it.net.

After installation, connect the laboratory voltage converter unit to your PC via a TTL or RS485 adapter. Please note that an incorrect connection can impair communication between the computer and the laboratory voltage converter unit.

Connection via USB requires installing drivers. The NI-VISA software is recommended for this, which can be downloaded from the specified website. It is recommended to deactivate Windows quick start during installation to avoid hardware detection problems. Only select "NI PXI Platform Services - Runtime" for installation, as this module is the only one required for the DPM software. After installation, the PC will restart automatically. The program can then be opened.

For the DPM8605, use the "DPM8608en" program; for the DPM8624, use the "DPM8624en" program.

In the software, select the correct COM port and click "Connect" to connect to the voltage converter unit. The baud rate defaults to 9600 and can be adjusted to match the device setting.

The device is connected when the "Connect" button lights up green. The software interface allows for port selection, baud rate setting, address configuration, and displays the connection status. It provides controls for setting the output voltage and current, including lower and upper set limits, and activating/deactivating the output. Other features include a temperature display, refresh button, data group management, and secure load options.

The output status is indicated by a button that is red when deactivated and turns green when activated.

17. Declaration of Conformity

Simac Electronics Handel GmbH hereby declares that the radio equipment types JT-DPM8605 and JT-DPM8624 comply with Directive 2014/53/EU. The full text of the EU Declarations of Conformity is available at:

• www.simac-gmbh.de/CE/jt-dpm8605.pdf
• www.simac-gmbh.de/CE/jt-dpm8624.pdf

DPM8605 Information: Frequency band: 2412~2472 MHz, Max. Transmit power: 11.93 dBm.

DPM8624 Information: Frequency band: 2412~2472 MHz, Max. Transmit power: 11.93 dBm.

18. Other Information

Information and take-back obligations under the German Electrical and Electronic Equipment Act (ElektroG):

Symbol on Electrical and Electronic Equipment: The crossed-out garbage can symbol indicates that electrical and electronic appliances do not belong in household waste. Used appliances must be handed in at a collection point. Separate used batteries and accumulators before disposal.

Return Options: As an end user, you can hand in your old appliance for disposal free of charge when purchasing a new appliance of the same function. Small appliances (max. 25 cm external dimensions) can be disposed of in normal household quantities regardless of whether a new appliance was purchased.

Return at Company Location: SIMAC Electronics GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn, during opening hours.

Return Option in Your Area: Contact JOY-it by e-mail at Service@joy-it.net or by telephone to receive a parcel stamp for free return shipping.

Packaging Information: Please pack your old appliance securely for transportation. If you do not have suitable packaging material, contact JOY-it, and suitable packaging will be sent.

19. Support

JOY-it provides support after purchase. For unanswered questions or arising problems, assistance is available via e-mail, telephone, and a ticket support system.

E-Mail: service@joy-it.net

Phone: +49 (0)2845 9360 - 50

For further information, please visit our website: www.joy-it.net.