17
DANGER
Make sure that the rated value of the input power supply is consistent with that of the inverter .Otherwise it may damage the inverter !
Make sure that the motor matches the inverter . Otherwise it may damage the motor or generate inverter protection !
Do not connect the power supply to the terminals of U,V and W . Otherwise it may damage the inverter !
A DC bus P+ P- terminals :it is note that the DC bus terminals have residual voltage after power-off .Make sure that the voltage is、、
B Connecting terminals of brake resistor : the connecting terminals of the brake resistor are dffective only for the inverter with、
C Terminals U ,V ,W at the output side of the inverter : the inverter output side cannot connect to the capacitor or surge absorber.、
Otherwise, it may cause frequent inverter protection and even damage the inverter .
In case the motor cable is too long , it maybe cause damaging the motor insulation or generating higher leakage current to invoke
built-in brake unit .The selection of brake resistor refers to the recommended ones and the distance between wiring should less than 5m,or
it may damage the inverter !
Do not connect the brake resistor directly to the DC bus , or it may damage the inverter and even cause fire .
less than 36V prior to wiring connection .Otherwise there may be danger of electric shock .
E
E
W
W
V
V
U
U
T
T
S
S
R
R
Precautions on Wiring :
PB
P-
P-
P+
P+
P
!
NOTE
Make sure that the power switch is in OFF status prior to perform wiring connection . Otherwise there may be danger of electric shock !
Only the qualified and trained personnel can perform wiring connetion . Otherwise it may cause equipment and human injuries !
It should be earthed reliably . Otherwise there may be danger of electric shock or fire !
!
E
W
V
U
L2
L1
PB
P+
Chapter 3 Mechanical and Electrical Installation
4、Main circuit terminal and wiring
DC brake
DC brake
Brake unit
DC reactor
Single phase
3- phase source input
3- phase source input
resistance
resistance
source input
Electromotor
Electromotor
Electromotor
Ground
Ground
Ground
The left diagram is suitable for
The left diagram is suitable for
The left diagram is suitable for
all of the EH620 series equipment .
EH640A 15G(18.5P) and the inverter
EH640A 18.5G(22P) and the inverter
with lower level power , besides ,
with higher level power , besides,
EH623A 3.7G and the inverter with
EH623A 11G(15P) and the inverter with
lower level power .
higher level power .
M
M
M
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General