AC 3PHASE INVERTER,S MAIN CIRCUIT CONNECTING METHOD .

INVERTER (main circuit connecting method )


at run time' please check whether the motor is in forward operation
at the command of forward operation . if it is in reverse operation'
please stop the system' cut the power supply and exchange any two
terminals among  u'v'w  then the motor will run forward .
do not disconnect the power supply to the inverter's output terminal '
otherwise' the inverter's interior will be damage. the grounding of
output terminal is not permitted. please do not left the output cable
to touch or connect the machine housing'otherwise'the inverter's
interior could be damage.

please do make sure the grounding wire connects to the ground. the grounding resistor resistance should be
less than 10w for inverter of 380 v  level .
welding machine or other power equipment . the wire diameter shall conform with the stipulation of electric
equipment technical standard' and the wire should be as short as possible . in the occasion where two inverters are used at the same time' please do not make the grounding wire establish a loop. please find below for the correct grounding method and the wrong grounding method.
note; do not grounding the neutral point of the motor with y  connection.

ELECTRIC INVERTER,S {to select ac reactor }

                     INVERTER {to select ac reactor }


when the inverter works in the big power circuit'since the power supply's
impedance is small' the input rectifier will create big peak current.
this phenomenon is becoming more serious when there is capacitor over
compensation in power supply' or the circuit is connected to big power
rectifier or when static condenser is switching.to improve the above situation'
please select an ac reactor according to the range shown in below fib






   power capacity(kva)
                                    --- - - - -----------------------------
      400                        - ac.choke coil or                --                            
                                   -  dc.reactor is.                 -                      
                                   -  necessary                  -                
     600                              -                         -      
                                    ---------------------                          
                                     -------------------------------------
             0                                            60                   400

                                            inverter power (kva)

INVERTER (the selection of radio noise filter )



when the radio interference is serious to the exterior or the
exterior radio interference is serious to the inverter please
use radio noise filter to reduce the two way interference
caused by radiation or conduction.











 

AC 3PHASE INVERTER,S {TERMINAL FUNCTION OF MAIN CIRCUIT }

      INVERTER{terminal function of main circuit}

input power supply: r  s  t
grounding cable: g
DC bus:   -    +
motor wiring: u  v  w
braking resistor: pb

the main circuit terminal function is shown as below table.conduct correct wiring
according to the corresponding functions.


TERMINAL CODE                                FUNCTION DESCRIPTION

r s t                                         power supply input terminal ' it connects to 3- phase ac power supply or                                                single phase ac power supply.


u v w                                     are inverter's output terminal.it connects to 3 phase ac motor


-  +                                        connects to the connecting terminal of braking unit. - + they are
                                             respectively the dc bus's anode and cathode.


+, pb                                     braking  resistor connecting terminal.one end of the resistor connects to
                                             +; the other end connects to pb



G                                        g grounding terminal;connecting to the grounding.



exterior devices and optional parts

description of mccb

used to rapidly cut off the inverter's power supply and prevent the inverter and its circuit's
a fault from causing power supply fault.

description of  mc

at the fault of inverte's it is used to cur off the main power supply and avoid of restarting
following power failure or inverter  fault.

description of acl

it is used to improve the input power factory and reduce upper harmonics and restrict the
power supply's surging.

description of nf

it is used to reduce the radio interference caused by inerter. when the wiring distance
between motor and inverter is below  20 meters' it is recommended to connect to the
power supply side.when the wiring distance between motor and inverter is above 20
meters' it is recommended to connect to the output side.

description of  r* ub*

it is used when the braking torque cannot meet the requirement. it is suitable for the
occasion with large initial load and frequent braking fast stop.






















                                       

INVERTER

         INVERTER

preface

chapter 1 checking

1 checking items
2 date on nameplate
3 model no description

chapter 2 installation warning

1 dimention(see appendix 2 )
2 configuration
3 installation
3.1 installation site
3.2 precautions
4 installation direction and space
5 main circuit connecting description wiring
5.1 main circuit terminal layout
5.2 terminal function of main circuit
5.3 the wiring between main circuit peripheral devices and optional parts
6 control circuit terminal wiring description
6.1control circuit terminal layout and function
6.2 control circuit connection notes
7 wiring notes


chapter 3 operation

1 the operator's function and operation of win-va
1.1 win-va series'8 operation key function
1.2 the operator's layout of win-va

2 the introduction of menu of win-va
2.1 operator;s display status of win-va
2.2 the shift of va's constants
2.3 access level of win-va series's constant
 2.4 win-va series's control mode selection
2.5 initialization

3win-va's trial operation
3.1 check point before operation
3.2 operation mode selection
3.3 to execute trial operation by operator

INVERTER{CHAPTER 4 +5+6 CONSTANTS DESCRIPTION}


4.1 menu method and layout
4.2 constant function introduction








CHAPTER{5 PROTECTION FUNCTION}

5.1 exception analysis
5.2 alarm diagnosis
5.3 operation error
5.4 fault analysis

CHAPTER{6 MAINTENANCE AND REPAIRING }

6.1 daily check and periodical check
6.2 the selection of output reactor of inverter
6.3 current leakage protector
6.4 consideration of selecting motor
6.5 the parts which  needs to be replace periodicly

6.6 storage and custody


   INVERTER {CHAPTER 1 CHECKING }

note '  do not install the inverter which is damaged or in short of parts.
it could lead to injury.
unexpected case could happen during transparation 'please do check
the products carefull before use this products has been checked strictly
before use.

CHECKING ITEMS

content to be checked

whether the content of the nameplate confirms with the products before
use
check whether there is damaged parts
check whether the screws or fastening parts get loose or not.
manual' pass sticker and other parts.

preface

chapter 1 checking

1 checking items
2 date on nameplate
3 model no description

chapter 2 installation warning

1 dimention(see appendix 2 )
2 configuration
3 installation
3.1 installation site
3.2 precautions
4 installation direction and space
5 main circuit connecting description wiring
5.1 main circuit terminal layout
5.2 terminal function of main circuit
5.3 the wiring between main circuit peripheral devices and optional parts
6 control circuit terminal wiring description
6.1control circuit terminal layout and function
6.2 control circuit connection notes
7 wiring notes

  INVERTER{MAIN CIRCUIT CONNECTING DESCRIPTION WIRING}

dangerous

please make sure the power supplier is cut offer before wiring.and do not wire or
dismantle the inverter when the power is on.
electric shock or fire dizaster could  could happen.the inverter could be damage
the wiring shall be done by the professional electric engineer.electric shock or
fire dizaster could happen.
grounding terminal should br well connected to the ground.electric shock or fire
dizaster could happen.
when emergency stop terminal is connected' please do check whether the action
is effective or not.
human injury could happen.{hte user shall take the connecting responsibility}
please do not touch the output terminal with naked hands.electric shock or
short-circuit could happen. the inverter could be damage.