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2 SYSTEM CONFIGURATION
2.4.11 Cooling fan unit (Q170FAN) (Q173CPU/Q172CPU only)
This section explains the specifications of the Cooling fan unit (Q170FAN) used for the
Motion CPU module.
(1) Removable conditions of the Cooling fan unit
It is possible to remove the Cooling fan unit (Q170FAN) in order to disperse heat
from inside the Motion CPU module according to the number of Motion CPU
module and ambient temperature conditions.
Removable/Not removable of the Cooling fan unit (Q170FAN) by number of
Motion CPU module and ambient temperature is as follows.
(a) When using only one Motion CPU module
It is possible to remove the Cooling fan unit if the ambient temperature in
which the Motion CPU module will be operating is 0 to 40°C (32 to 104°F) .
(b) When using two or more Motion CPU module
Do not remove the Cooling fan unit( Q170FAN).
Ambient temperature
of the Motion CPU
Number of the Motion CPU
0 to 40°C
(32 to 104°F)
Over 40 to 55°C
(Over 104 to 131°F)
1 module Removable Not removable
2 modules or more Not removable
(2) Cooling fan unit specifications
Model name
Item
Q170FAN
Type Cooling fan
Ambient temperature
0 to 55°C (
32 to 131
°F)
Operating voltage range [V] 4.3 to 5.8
Rated current [A] 0.08
Air capacity 0.033 [m
3
/min]
Rated rotational speed [r/min] 7000
Service life time 30000 hours rated voltage continuous operation (at 40°C (104°F) )
Application For cooling Motion CPU module
Mass [kg] 0.01
As a guideline for preventive maintenance, the module should be inspected
every six months and replaced approximately every two or three years even if the
accumulated number of operating hours is less than the service life time shown
above (Refer to section 6.3 Periodic Inspection.)