Mitsubishi Electric Freqrol-A100 Instruction Manual page 32

W Changing the jumper position
Model FR-A140E-15K to 22K
?
Terminal symbol cover
Transformer terminal block
1) Remove the mounting screws of the terminal symbol cover and
remove the cover.
2) This reveals the terminal block of the internal transformer.
After removing the screws from the jumper in the terminal
block, reconnect the jumper in accordance with the operating
voltage in the above table.
Model FR-A140E-30K to 55K
Terminal cover
/
1) Remove the terminal cover of the
internal transformer located under
the main circuit terminal block (R,
S , TI.
2) After removing the screws from the
jumper in the terminal block, recon-
nect the jumper in accordance with
the operating voltage in the above
table.
/
Transformer terminal block
Jumper
For connection with the ground terminal of the motor, use one wire of the four core cable grounded
at the inverter end.
Notes on Grounding
The motor and inverter must be grounded (200V class
.......
class
3
grounding,
grounding resistance
l o o n
or less, 400V class
.......
special class 3 grounding,
grounding resistance 1052 or less) to prevent an electric shock.
1
Connect the ground cable for the inverter to the exclusively used ground
terminal. (Do not use the screws of the case,
(Unit: mm2)
chassis, etc.)
- -
Grounding
I
Use a ground cable size as large as possible
which is equal to or larger than that indi-
cated in the table, right. The grounding point
should be as near as possible to the inverter
to minimize the ground cable length.
Mob'
.
Capacity
.3.7kW
Or
less
-
5.5* 7.5kW
11 to l 5 k W
18.5 to 37kW
45,55kW
Ground Cable Size
200V
class
3.5
5.5
14
22
38
400V dass
2
3.5
8
14
22