eTOMMENS programmable power supply Series

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Overview

DC Power Supply Series Product Manual

DC Power Supply Series Product Manual

Function Description

This series of DC power supplies offers a single output with LED digital display, capable of simultaneously showing voltage, current, and power. The voltage and current are continuously adjustable, making it a portable and compact device.

Functional Features:

LED Digital Display: Virtually displays power output voltage, current, and power, with automatic decimal point adjustment.
Automatic Switching: Seamlessly switches between steady voltage and steady current modes.
ON/OFF Switch: Unique judgment switch for output control.
Protection Functions: Equipped with five powerful protection functions: over voltage (OVP), over current (OCP), over power (OPP), over temperature (OTP), and short circuit protection.
Shortcut Parameter Storage: Features six sets of shortcut parameter storage for quick recall.
Programmable Sequence: Supports programmable sequences with hardware output.
Integral Whole: Functions as both a normal power supply and a CNC power supply.
Temperature Control Fan Speed: The fan speed is controlled by temperature, ensuring low noise and extended fan life.
Pre-setting Capabilities: Allows voltage and current values to be set in advance while the output is in a shutdown state, enhancing convenience.
Key Lock Keyboard: Prevents misoperation through a key lock function.

Important Technical Specifications

Power Input:

AC input voltage: 220V ± 10%, 50Hz (110V input or 100V/220V manual switching).
Fuse Specifications: 220V: F5A/250V; 110V: F10A/250V (F5A/250V: 150W model).

Voltage Output:

Type: Program switching mode power supply / Programmable linear power supply
Output voltage: OV ~ Maximum rating
Power effect: ≤0.1%+5mV / ≤0.01%+5mV
Load effect: ≤0.1%+5mV / ≤0.01%+5mV
Ripple noise: ≤30mVrms / ≤30mVrms

Current Output:

Type: Program switching mode power supply / Programmable linear power supply
Output current: OA ~ Maximum rating
Power effect: ≤0.1%+3mA / ≤0.1%+3mA
Load effect: ≤0.1%+20mA / ≤0.02%+20mA
Ripple noise: ≤10mArms / ≤10mArms

Display Resolution:

Voltage:
- <10V: 10mV
- ≥100V: 0.1V
Current:
- <10A: 1mA
- ≥10A: 10mA
Power:
- <10W: 1mW
- ≥10W: 10mW
- ≥100W: 0.1W

Operating Environment:

Indoor use: Altitude: ≤2000m
Ambient temperature: 5°C - 40°C
Relative humidity: ≤80%

Storage Environment:

Ambient temperature: -20°C - 80°C
Relative humidity: ≤80%

Product Size:

280(D) × 130(W) × 165(H)mm

Weight:

Program switching mode power supply: About 2 Kg
Programmable linear power supply: About 4.5 Kg

Usage Features

Front Panel Diagram:

Voltage Display (1): Shows current output voltage (V) when ON, or preset voltage when OFF.
Current Display (2): Shows current output (A) when ON, or preset current when OFF.
Power / Time / Status Display (3): Shows output power (W) when ON, time (S) during shortcut parameter storage, "OFF" when power output is off, or protection status (OVP, OCP, OPP, OTP).
ON/OFF Shutdown Switch (4): Controls output state. Green for ON, red for OFF.
Power Switch (5): Turns the power supply on/off.
Output Positive Electrode (6): Power output positive (+) electrode.
Grounding Terminal (7): Safety ground terminal.
Output Negative Electrode (8): Power output negative (-) electrode.
"B Lock" Return / Keyboard Lock (9): Short press for normal mode, long press (2S) to lock keyboard. "B Lock" lamp is always bright when locked.
"List" Mode Key (10): Long press (2S) to enter/exit hardware List function mode. Output turns off in List function edit mode. Short press "M1" to "M6" to select/delete shortcut parameters or execute loop output.
"I CC" Current Setting Key (11): Short press to enter edit mode for current setting. "I CC" light indicates steady current state.
"OCP" Over-current Setting Key (12): Short press to enter edit mode for over-current function.
"U CV" Voltage Setting Key (13): Short press to enter edit mode for voltage setting. "U CV" light indicates steady voltage state.
"OVP" Over-voltage Setting Key (14): Short press to enter edit mode for over-voltage function.
Cursor Right Arrow Key (15): Moves flashing set bit to the right in data editing mode.
Cursor Left Arrow Key (16): Moves flashing set bit to the left in data editing mode.
Rotating Shuttle Button (17): In normal mode, rotates to adjust values or presses to enter voltage data edit mode. In edit mode, rotates clockwise to increase, counter-clockwise to decrease.
"M1" ~ "M6" Shortcut Parameter Storage Key (18): Short press to enter preview/edit mode. Press "B Lock" to exit and save. Continuous short press twice to set current voltage and current values to the shortcut parameter key.

Rear Panel Diagram:

Cooling Fan Vents (19): For air cooling and heat dissipation. Fan speed adjusts intelligently based on power consumption.
Input Power Switch (20): AC110V/220V input switch (default without this switch).
Fuse Holder (21): Contains the power fuse, can be prized up with a screwdriver for replacement.
Power Input Socket (22): AC input port.
RS232 Serial Port Seat (23): For communication with the control CPU (default without this interface).

First Use Procedure:

Connect the power supply: Ensure input power requirements are met (refer to Chapter IV). Check the fuse. Connect the instrument to the AC power supply using the provided power cord. Important: Ensure proper grounding to avoid electric shock.
Battery check: Press the front panel power switch. The "ON/OFF" key backlight should display red, then green when power is on. If restarting after shutdown, ensure the boot time interval is greater than 5S.
Output check:
- Output switch: Press "ON/OFF" key. Backlight turns green (ON). Press again, backlight turns red (OFF).
- Voltage output check: With no load, turn on power. Ensure current setting is >0V. Press "ON/OFF" to open output. Check if output voltage can be adjusted from 0V to maximum rating.
- Current output check: Set power supply output voltage to ~8V. Use an output clamp wire to short circuit the front panel output terminals. Press "ON/OFF" to open output. Check if current can be adjusted from 0A to maximum rating.

Operating Modes:

Constant Voltage (CV) Output: Set voltage and current in advance. In CV mode, the output voltage is set by the power supply. If load changes cause current to exceed set value, the instrument switches to CC mode, and voltage reduces proportionally.
Constant Current (CC) Output: Set voltage and current in advance. In CC mode, the output current is set by the power supply. If load changes cause voltage to exceed set value, the instrument switches to CV mode, and current reduces proportionally.
Hardware List Output: Allows setting a sequence of current, voltage, and time values for programmed output.

Maintenance Features

Regular Check:

During use, regularly inspect the product to ensure optimal working condition.
Check if the power supply input socket is burned out.
Check if the power supply output terminals are loose.

Replacement of the Fuse:

Remove the power cord.
Remove the fuse box with a small screwdriver.
Replace the fuse with one of the correct specifications.

Safety Guide:

Do not place heavy objects on the chassis.
Avoid serious impact or improper disposal to prevent machine damage.
Take measures to prevent electrostatic discharge when connecting instruments.
Do not block or isolate fan vents.
Do not open the machine unless you are a professional person.
Do not use chemicals or detergents containing abrasive products (e.g., benzene, toluene, xylene, acetone) for cleaning.
Wet a soft cloth with mild detergent and water for cleaning; do not spray detergent directly.
Cut off power before cleaning.