BBB IdSWITCH EMP31 Bedienungsanleitung

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

EMP31/EMP51

Master Power Unit

Version: A2.3

Date: December 2023

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

WARNING: HIGH VOLTAGE INSIDE

CAUTION: THE DC FUSE MUST HAVE BEENTURNED OFF BEFORE SERVICING

MADE IN CHINA

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

Disclaimer

Unless specially agreed in writing, TBB Power Co.,Ltd.

➢Take no warranty as to the accuracy, sufficiency of suitability of any technical or other

information provided in this manual or other documentation.

➢Assumes no responsibility or liability for loss or damage, whether direct, indirect, consequential

or incidental, which might arise out of the use of such information

➢TBB Power Co.,Ltd offer standard warranty with its products, taking no responsibility for direct or

indirect loss due to equipment failure.

About this Manual

This manual describes our product features and provides procedure of installations. This manual is

for anyone intending to install our equipment.

Thanks for choosing our products and this manual were suitable for EMP Master Power Unit.

This chapter contains important safety and operation instructions. Read and keep this User Guide

well for later reference.

The EMP Master Power Unit needs to be installed by professionals and please pay attention to the

following points prior to installation:

1) Please check the input voltage or voltage of battery is same to the nominal input voltage of this

unit.

2) Please connect positive terminal “+” of battery to “+” input of this unit.

3) Please connect negative terminal “-” of battery to “-” input of this unit.

4) Please use the shortest cable to connect and ensure the secure connection.

5) While connecting, please secure the connection and avoid short cut between positive terminal

and negative terminal of battery, which will cause damage of battery.

6) This unit will have high voltage inside. Only authorized electrician can open the case.

7) This unit WAS NOT designed to use in any life retaining equipment.

 EMP31/EMP51 Master Power Unit User Manual 
IDM Technologie 
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General Safety Instruction........................................................................................................1 
1 Safety Instruction...............................................................................................................1 
2 General Precaution............................................................................................................1 
3 Precaution regarding battery operation..............................................................................1 
EMP31/EMP51 INTRODUCTION.............................................................................................2 
1 Features.............................................................................................................................2 
2 LED Display.......................................................................................................................2 
KEY FEATURES AND FUNCTIONS ........................................................................................3 
1 Multiple inputs....................................................................................................................3 
2 Battery Charger of Auxiliary Battery ...................................................................................4 
3 Lithium battery charging.....................................................................................................5 
4 Power Supply Mode...........................................................................................................5 
5 PWM Solar charger controller............................................................................................5 
6 Voltage Charging Relay (VCR )..........................................................................................6 
7 Battery Low Voltage Protection (BLVP)..............................................................................7 
8 DC Distribution...................................................................................................................8 
STRUCTURE AND INSTALLATION.........................................................................................9 
1 EMP Master Power Unit.....................................................................................................9 
2 Installation........................................................................................................................12 
3 Fuse specification............................................................................................................13 
OPERATION..........................................................................................................................14 
1 Configuration on EMP......................................................................................................14 
1.1 Dip switch setting...................................................................................................14 
2 Daily Maintenance ...........................................................................................................16 
Trouble shooting.....................................................................................................................16 
1 LED display on EMP........................................................................................................16 
Specification ..............................................................................................................................17 

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

1. General Safety Instruction

1.1 Safety Instruction

As dangerous voltages and high temperature exist within the EMPMaster Power Unit, only qualified

and authorized maintenance personnel are permitted to open and repair it. Please make sure the

unit is turned off before open and repair it.

This manual contains information concerning the installation and operation of EMP Master Power

Unit. All relevant parts of the manual should be read prior to commencing the installation. Please

follow the local stipulation meantime.

Any operation against safety requirement or against design, manufacture, safety standard, and are

out of the manufacturer warranty.

1.2 General Precaution

1) Do not expose to dust, rain, snow or liquids of any type，it is designed for indoor use. DO NOT

block off ventilation, otherwise the EMP Master Power Unit would be overheating.

2) To avoid fire and electric shock，make sure all cables selected with right gauge and being

connected well. Smaller diameter and broken cable are not allowed to use.

3) Please do not put any inflammable goods near to this unit.

4) Never place this unit directly above batteries, gases from a battery will corrode and damage

EMP Master Power Unit.

5) Do not place battery over EMP Master Power Unit.

1.3 Precaution regarding battery operation

1) Use plenty of fresh water to clean in case battery acid contacts skin, clothing, or eyes and

consult with doctor as soon as possible.

2) The battery may generate flammable gas during charging. NEVER smoke or allow a spark or

flame in vicinity of a battery.

3) Do not put the metal tool on the battery, spark and short circuit might lead to explosion.

4) REMOVE all personal metal items such as rings, bracelets, necklaces, and watches while

working with batteries. Batteries can cause short-circuit current high enough to make metal

melt, and could cause severe burns.

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

2. EMP31/EMP51 INTRODUCTION

2.1 Features

➢Smart battery charger 12V18A (EMP31) / 12V30A(EMP51)

Active PFC charging

➢16 Fused DC outputs, including water pump and lighting central control.

➢Battery charging relay 12V 30A

➢Battery Low Voltage Protection

➢Support external remote main switch

➢Control one water pump with two tank probes

➢Solar charger controller (PMW), 15A

2.2 LED Display

Table 1 LED indication

NO.

LED

Color

Status

Description

CHG

Green

Battery charged

Flashing

(flash once every second)

Battery charging

OFF

Battery discharge

Dischg

Orange

Battery discharging

OFF

Battery charging

CHG/ Dischg

Green/Orange

Both ON

Power supply

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

3. KEY FEATURES AND FUNCTIONS

3.1 Multiple inputs

EMP master power unit may have multiple sources at one time. These sources include the Shore

power, Solar panel and Alternator (Motor battery). There is priority among these sources, but EMP

allows several sources to charge auxiliary battery at the same time. The priorities are listed below.

Table 2 Energy sources priority

AC Mains

✓

Solar panel

✓

Alternator (Motor battery)

✓

Dominating Source

AC mains

+ Solar

panel

AC mains

+ Solar

panel

AC mains

Alternator +

Solar panel

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

3.2 Battery Charger of Auxiliary Battery

The charger automatically starts when the appropriate qualified power is connected, either from grid,

generator. With multiple charging stages (soft start-bulk-absorption-float-recycle), EMP is designed

to fully charge battery quickly. To guarantee the optimal charging for batteries of different states, the

EMP features Microprocessor-controlled charging algorithm. The Float and Recycle charging

programs guarantees the battery being charged properly when battery is connected for a longer

period.

Figure 1 Charging algorithm for lead-acid battery of EMP31

Figure 2 Charging algorithm for lead-acid battery of EMP51

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

3.3 Lithium battery charging

The EMP can be configured to charge Lithium battery.

3.4 Power Supply Mode

If no battery is attached to EMP unit, it will work as a power supply automatically with a 12.8VDC

output.

3.5 PWM Solar charger controller

EMP has a built-in PWM charger for the auxiliary battery.

Max open circuit voltage is 30VDC

Max supply current is 15A

EMP31/EMP51 Master Power Unit User Manual

IDM Technologie

3.6 Voltage Charging Relay (VCR )

EMP Master Power Unit has a built-in voltage charging relay (VCR), which can get power from

alternator to supply the system and charge auxiliary whilst the engine is running.

Here is the working logic of VCR

Table 3 VCR working logic

D+ Enabled

D+ Disabled

LFP battery

Disengage

VCR will be disengaged

immediately if no D+ is

sensed or detected

VCR will be disengaged

when alternator/motor

battery’s voltage is less than

13.5V and charging current

is less than 2A for 60S

Engage

VCR will be engaged when:1)

D+ is sensed or detected; 2)

Alternator or motor battery’s

voltage is greater than 14.0V

for 10S

VCR will be engaged when

alternator or motor battery’s

voltage is greater than

14.0V for 10S

AGM/GEL

battery

Disengage

VCR will be disengaged

immediately if no D+ is

sensed or detected

VCR will be disengaged

when alternator or motor

battery’s voltage is less than

12.8V for 60S

Engage

VCR will be engaged when:1)

D+ is sensed or detected; 2)

Alternator or motor battery’s

voltage is greater than 12.0V

for 10S

VCR will be engaged when

alternator or motor battery’s

voltage is greater than

13.4V for 10S

Remarks:

a. D+ enabled means the EMP box has sensed or detected D+ once, afterwards EMP31 box

would deem it as D+ enabled

b. D+ disabled means the EMP box has never sensed or detected D+, so EMP box would

deem it as D+ disabled

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