Longwei Electric TPR-3002-2D User Manual

1
In order to better use the power supply, please read the user
manual carefully before using and keeping it properly.
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.
Warning: If you are running inductive load like magnetic coils, DC motors,
stepper motors, etc., make sure to change the voltage/current slowly, and
NEVER turn the power supply on or off with a inductive load connected!
1. Summary:
This serial multiplex output is high-precision power supply composed of
two way regulated output power supply and one-way fixed output power
supply. It uses four groups of three LED to display output voltage and current
values of the two way power supply respectively. In addition, two-way
regulated output power supply possesses automatic transfer function to
regulate voltage and current. And its circuit is composed of compensating pipe
power exhaustion steering circuit, operational amplifier and reference voltage
regulator with temperature compensation. Therefore, the circuit is stable and
reliable. The output power voltage of the power supply may randomly be
regulated from 0 to nominal voltage value. When it is in the state of current
regulation, the current regulation output current can continuously be regulated
from 0 to nominal current value. The two-way regulated power supply can be
randomly in series or in parallel in terms of the power supply. When it is in
series or in parallel, one circuit may track its voltage or current (in
parallel).The maximum output voltage can reach the total amount of the
two-way voltage rating when it is in series, while the maximum output current
can reach the total amount of the two-way current rating when it is in parallel.
The other regularly outputs 5V power supply, and the controlling part is
composed of single scale integrated regulator. The three groups of power

Longwei Electric TPR-3002-2D Specifications

General

Brand	Longwei Electric
Model	TPR-3002-2D
Category	Power Supply
Language	English

Summary

1. Summary

2. Specifications and Parameters

2.1 Technical Parameters

Details input voltage, two-way regulated supply specs, current/load effects, ripples/noises, protection, and regular output specs.

2.2 Working Principles

Explains the internal circuit design and operational logic of the power supply.

3. Panel Controls and Operation

3.1 Function of Panel Elements

Identifies and describes all controls, indicators, and terminals on the power supply panel.

3.2 Methods for Use

Guides for independent, series, and parallel operation of the two-way power supply.

4. Important Precautions

4.1 Protective Functions and Short Circuits

Information on protective features and behavior during short circuits.

4.2 Storage and Post-Use Care

Recommendations for storing and maintaining the unit after use.

4.3 Maintenance Safety

Crucial safety step to disconnect power before any maintenance.

4.4 Power Failure and Output Voltage

Explains causes of power failures and potential output voltage changes.

4.5 Grounding for Safety

Importance of connecting the protective ground terminal for user safety.

5. Attachment

6. Operating Procedure

7. Maintenance and Regulation

7.1 Protective Tube Replacement

Instructions for replacing a blown protective tube.

7.2 Regulation Procedures

Procedures for recalibrating voltage and current outputs.