Installation
M-Max Series Adjustable Frequency Drive MN04020003E—October 2013 www.eaton.com 27
Cooling Measures
In order to guarantee sufficient air circulation, enough
thermal clearance must be ensured according to the frame
size (rating) of the frequency inverter.
Air-Cooling Space
Minimum Clearance at the Front
Note: The frequency inverters of the M-Max series are
air-cooled with an internal fan.
Minimum Clearance and Required Cooling Air
Note
With frame sizes FS1, FS2 and FS3 the side clearance can be 0 mm if the
ambient air temperature does not exceed +40°C, the pulse frequency
(P11.9) does not exceed 4 kHz and the elevation does not exceed 1000m.
Higher ambient air temperatures pulse frequencies and installation heights
above 1000m require a minimum side clearance of 20 mm from a
“passive” neighbor (housing wall) and a clearance of 50 mm from an
“active” [need info] neighbor (frequency inverter, switched-mode power
supply unit).
With MMX34…014_, the side clearance to a “passive” neighbor must
always be 20 mm in all operating conditions and always 50 mm to the
“active” neighbor.
Note: Please note that the installation makes it possible to
open and close the control signal terminal covers
without any problems.
Note: The pulse frequency (f
PWM
) can be adjusted with
parameter P11.9.
Note: Devices with strong magnetic fields (e.g. reactors or
transformers) should not be installed in the immediate
vicinity of the M-Max device.
Air-Baffle Due to Increased Circulation with Device Fan
If devices are arranged vertically above each other, the
clearance between the two devices must at least be equal to
dimension c + d (“active neighbors”).
With frame sizes FS4 and FS5 a baffle must be fitted
between the two devices. Otherwise, the upper device may
overheat due to the device fan fitted at the top of the lower
device.
a
mm
b
mm
c
mm
d
mm
e
mm
V
m
3
/h
FS1 20 50 100 50 15 10
FS2 20 50 100 50 15 10
FS3 20 50 100 50 15 30
FS4 20 50 100 100 20 45
FS5 20 50 120 100 20 75
b
a
a
a
(b)
c
d
e
V
V
d
c
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