9 Servicing
Removing components
SMGB0091 rev.2 - 11/2015
180
Removal of the Inverter PCB(PCB4) and the inverter power module (IPM)
!
D A N G E R
Electrical hazard. Risk of death.
• Do not touch the electrical components when the LED201 (Red) of DIP-IPM is ON in order to avoid an electrical shock.
• Do not touch the electrical components of the PCB box directly.
Disconnect all the wirings connected to the transistor module
as shown in the figure.
1
Disconnect all the wirings from PCB4.
2
Disconnect the wirings from P, N, U, V, W on the IPM.
3
Remove the 4 screws fixing the PCB4 and then remove
the PCB4 from the transistor module.
4
Remove the 4 fixing screws on the IPM.
5
Remove the transistor module from the electrical box.
?
N O T E
• The correct position of the marks on the PCB4 is upside down when
being assembled.
• Identify the terminal Nos. with the mark band Nos. when
reassembling. If incorrectly connected, malfunction or damage will
occur.
• Check to ensure that electrical wires will not be caught between the
mounting electrical components and the mounting plates when the
PCB4 is remounted.
• Apply silicon grease evenly on the whole rear side of the transistor
module when mounting. Silicon grease is available as a field-
supplied accessory.
(PCB4 and transistor module (IPM)
Screws
Screws
Removal of the diode module (DM)
Disconnect all the wirings connected to the diode module as
shown in the picture:
1
Disconnect all the wirings of the ter, -, U, V, W on
the diode module (DM).
2
Remove the 2 screws fixing the diode module.
3
Remove the diode module from the electrical box.
?
N O T E
• Identify the terminal Nos. with the mark band Nos. when
reassembling. If incorrectly connected, malfunction or damage will
occur.
• Apply silicon grease evenly on the whole rear side of the diode
module when mounting. Silicon grease is available as a field-
supplied accessory.
Screws
U
V
W
-
+