Omron SYSDRIVE MX2 SERIES - Cooling Fan Life Signal (WAF); Cooling Fan Operation

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5-9 Functions Relating to Protections, Warnings and Various Output Signals
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
Cooling Fan Operation
You can set whether to operate the Inverter's cooling fan constantly or only during Inverter operation.
Note 1: If a momentary power interruption occurs or the power is cut off while the cooling fan is operating,
the cooling fan stops temporarily and will resume operation automatically once the power
recovers.
Note 2: Do not clear the total operation time except when the cooling fan is replaced, because doing so
will disable the correct Life Assessment Monitor of the cooling fan (d022).
Cooling Fan Life Signal (WAF)
Set the ambient temperature in the environment where the Inverter is used, in b075. Estimate
the life of the cooling from the total operation time and set ambient temperature and have a
signal output when the replacement timing arrives.
It is recommended that the cooling fan be checked for clogging, etc. or replaced when this
signal is output.
Life Assessment Monitor (d022) shows the status of this signal.
Parameter
No.
Function name Data
Default
setting
Unit
b092
Cooling Fan
Operation
00: Always
01 −
01: Only during operation
(However, the cooling fan operates for 5
minutes after power-on, and for 5 minutes
after the Inverter stops.)
02: Depends on the fin temperature
b093
Cooling Fan Total
Operation Time
Clear
00: Total operation time count
00 −
01: Clear total operation time
(After this function is executed, 01 is reset
to 00.)
Parameter
No.
Function name Data
Default
setting
Unit
b075
Ambient
Temperature
−10. to 50.
Set the ambient temperature in the use
environment.
40. °C
C021 to C022
Multi-function
Output Terminal
Selection
40: WAF (Cooling fan life warning
signal)
−−
C026
Multi-function
Relay Output
Function Selection
Related functions b092, d022