Axpert MKS-4000/KS-5000 Service manual
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1. General information
1.1 Getting start
This manual is for Axpert MKS 4KVA-5KVA series, it can help service personal perform the basic
maintenance and repair service.
This manual focus on the service, so you should get the basic operation of the Inverter/Charger from the
user manual, and make sure you had read and understood user manual before you use this service
manual.
The manual include 8 sections, as follows
General Information, this section show you the general information of the service manual
Functional Block, this section show you the major functional block of the Inverter/Charger
Working Principle of the major Functional Block, this section show you the major functional block
Function explanations for each PCB, this section show you all the PCBs of the Inverter/Charger
Interface, this section show you the LCD interface, include display and setting
Trouble shooting, this section will give you the way to find the trouble
Test step ,this section tell you how to test the Inverter/Charger after you repair the unit
Electric Specifications, this section show you the basic electric specification of the Inverter/Charger
1.2 Important safety instructions
WARNING: This chapter contains important safety and operating instructions. Read and
keep this manual for future reference.
1. Before using the unit, read all instructions and cautionary markings on the unit, the batteries and
all appropriate sections of this manual.
2.
CAUTION
--To reduce risk of injury, charge only deep-cycle lead acid type rechargeable batteries.
Other types of batteries may burst, causing personal injury and damage.
3. Do not disassemble the unit. Take it to a qualified service center when service or repair is required.
Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or
cleaning. Turning off the unit will not reduce this risk.
5.
CAUTION
– Only qualified personnel can install this device with battery.
6.
NEVER
charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow required spec to select appropriate
cable size. It’s very important to correctly operate this inverter/charger.
8. Be very cautious when working with metal tools on or around batteries. A potential risk exists to
drop a tool to spark or short circuit batteries or other electrical parts and could cause an explosion.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals.
