Omron SYSDRIVE MX2 SERIES, User Manual

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7 - 85
7 Other Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
7-
8 Fu
nct
ion
s Relat
ed to
Prot
ectio
n, W
arnin
g, an
d V
ariou
s O
u
tp
ut
Si
gnal
s
7
7-8
-14 Co
oling Fa
n Life
W
a
rning Sign
al (
W
A
F
)
In the Ambient Temperature (b075), set the ambient temperature in the operating environment of the
inverter. This signal, when allocated, enables the inverter to estimate the expectancy of the cooling fan
and output this warning signal when replacement is necessary.
This warning is made on the assumption that the life expectancy of the cooling fan is approximately 10
years under an ambient temperature of 40°C or lower.
If this signal is output, it is recommended to check the cooling fan for clogging etc. or replace it.
The status of this signal can be monitored in the Life Assessment Monitor (d022).
This signal is enabled only when Modbus communication is selected for RS485 communications.
If a reception timeout error occurs, this signal will be output until the next data is received.
Set the time until the reception timeout in the Communication Error Timeout Time (C077).
For details, refer to Section 8 Communications Functions .
7-8-14 Cooling Fan Life Warning Signal (WAF)
Parameter
No.
Function name Data
Default
data
Unit
b075 Ambient Temperature
−
10 to 50
Set the ambient temperature in
the operating environment.
40 °C
C021, C022 Multi-function Output P1/P2 Selection 40: WAF (Cooling fan life warn-
ing signal)
− −
C026
Multi-function Relay Output (MA, MB)
Function Selection
Related functions b092, d022
7-8-15 Communication Disconnection Detection Signal (NDc)
Parameter
No.
Function name Data
Default
data
Unit
C077 Communication Error Timeout Time
0.00: Timeout disabled
0.01 to 99.99
Set the reception timeout time.
0.00 s
C021, C022 Multi-function Output P1/P2 Selection 32: NDc (Communications
disconnection detection)
− −
C026
Multi-function Relay Output (MA, MB)
Function Selection
(C077)
External controller
Monitor timer
Inverter
Communications
error (NDc) output
Communication
Error Timeout Time