
POWER ELECTRONICS
SD750K
POWER CONNECTION
45
Power connection and wiring
CAUTION
The following installation recommendations are suitable for TN and TT grids. For IT grids refer the
dedicated section.
Otherwise, you could cause damage to equipment and personnel.
Wiring and periodic inspections should be performed at least 10 minutes after disconnecting the
input power. When removing the front cover, check that the red DC Link LED is off. Afterwards
you can remove the metal cover and check with a multimeter the following measures:
•
The voltage between the output plates U, V, W and the cabinet must be around 0V.
•
The voltage between the DC link +, - terminals and the chassis must be below 30Vdc.
Otherwise, you may get an electric shock.
SD750 Kompakt is designed for working with 3-phase supply with the neutral connected to the earth.
Input terminals (drive supply) are accessible from the top while output terminals (motor supply) are
accessible from the bottom of the SD750 Kompakt.
We recommend installing the drive according to the following diagram:
Note:
It is recommended to use an earth cross section equal or higher than active wires cross section.
Summary of Contents for SD750K
Page 1: ...SD750K HARDWARE AND INSTALLATION MANUAL LOW VOLTAGE VARIABLE SPEED DRIVE...
Page 2: ......
Page 59: ...POWER ELECTRONICS SD750K POWER CONNECTION 57 Connections for frame 2...
Page 60: ...SD750K POWER ELECTRONICS 58 POWER CONNECTION EN Connections for frame 3...
Page 61: ...POWER ELECTRONICS SD750K POWER CONNECTION 59 Connections for frame 4...
Page 83: ...POWER ELECTRONICS SD750K INDUCTANCES 81 Dimensions of inductances P246B Inductance...
Page 84: ...SD750K POWER ELECTRONICS 82 INDUCTANCES EN P256A Inductance...
Page 85: ...POWER ELECTRONICS SD750K INDUCTANCES 83 P233A Inductance...
Page 86: ...SD750K POWER ELECTRONICS 84 INDUCTANCES EN P297A Inductance...
Page 87: ...POWER ELECTRONICS SD750K INDUCTANCES 85 P298A Inductance...
Page 88: ...SD750K POWER ELECTRONICS 86 INDUCTANCES EN P316A Inductance...
Page 89: ...POWER ELECTRONICS SD750K INDUCTANCES 87 P317A Inductance...
Page 90: ...SD750K POWER ELECTRONICS 88 INDUCTANCES EN P318A Inductance...
Page 91: ...POWER ELECTRONICS SD750K INDUCTANCES 89 P319A Inductance...
Page 99: ......