3.2 Installation and Layout
• Prevent lint, paper fibers, sawdust, dust, metallic
chips, or other foreign materials from getting into
the converter and filter stack or from accumulating
on the heat sink.
Otherwise, a fire could occur.
• Do not install or run a damaged converter or filter
stack. There should be no parts missing.
Injury may result.
• Install the converter in a panel or at places where
people can not touch it easily.
Electric shock or injury may result.
1) Install the converter and filter stack vertically to a
robust structure with specified bolts so that the
"PWM CONVERTER" characters are visible
correctly in front, respectively.
Do not install them upside down, horizontally, or at
an angle.
2) Do not place devices or components in front of the
converter. The converter has the display and
operating unit on the front and wiring or
maintenance/inspection requires removing the front
cover.
3) Ensure that the minimum clearances and air channels
shown in Figure 3.2-1 are maintained al all time for
ventilation since the converter and filter stack
generate heat during operation.
The generated heat goes up, so do not route cables or
wiring in the space above the converter and filter
stack.
• Do not place flammable objects near the converter
or filter stack.
Fire may result.
Figure 3.2-1 Mounting Direction and Required
Clearances
4) The converter generates heat in running. When
mounting the converter in a control panel, therefore,
take extra care with ventilation inside the panel to
prevent the ambient temperature from exceeding the
specified limit. Do not install the converter in a small
airtight box with poor ventilation.
5) The generated heat is radiated upwards by fans inside
the converter and filter stack. Do not install the
converter or filter stack beneath devices sensitive to
heat.
• Install the converter and filter stack on a base made
of metal or other non-flammable material.
Fire may result.
6) When the converter is running, the temperature of
the heat sink rises to in the vicinity of 90
°
C. The
mounting surface of the heat sink on the back side of
the converter and filter stack should be made of
material being proof enough against the temperature
rise.
• Prevent lint, paper fibers, sawdust, dust, metallic
chips, or other foreign materials from getting into
the converter or from accumulating on the heat
sink.
Otherwise, a fire could occur.
• Keep away from the heat sink, filtering resistor,
filtering reactor and boosting reactor because they
become very hot.
Burns may result.
Table 3.2-1 Clearances
A
B
C
D
E
Between
stacks
Rank 3
10
10
300
350
20
Rank 4
From other devices
20
20
--
350
(100)
50
(Unit: mm)
1) Do not install stacks one above the other.
2) In space "C" (above the stack's outlet fans),
only a fuse (authorized by Fuji Electric) can
be mounted.
To mount general devices in the space,
select devices whose maximum operating
temperature is 70
°
C and mount them so that
they do not interfere with the outlet fans.
3) In space "D" (beneath the stack's inlet), do
not block approximately 60% of the area in
350 mm clearance. To install devices in
space "D," ensure 100 mm clearance.
E
Cooling
fans
Exhaust direction
A
B
C
D
3-2
