A value of 100% indicates that the SERVOPACK has not yet been used. The
percentage decreases as the SERVOPACK is used and reaches 0% when it is
time to replace the SERVOPACK.
10.5.3
Preventative Maintenance
You can use the following functions for preventative maintenance.
n
Preventative maintenance warnings
n
/PM (Preventative Maintenance Output) signal
The SERVOPACK can notify the host controller when it is time to replace any of the main
parts.
An A.9b0 warning (Preventative Maintenance Warning) is detected when any of the fol-
lowing service life prediction values drops to 10% or less: SERVOPACK built-in fan life,
capacitor life, inrush current limiting circuit life, and dynamic brake circuit life. You can
change the setting of Pn00F = n.
X to enable or disable these warnings.
Parameter
Description
When Enabled Classification
Pn00F
n.
0
(default
setting)
Do not detect preventa-
tive maintenance warn-
ings.
After restart
Setup
n.
1
Detect preventative
maintenance warnings.
The /PM (Preventative Maintenance Output) signal is output when any of the following
service life prediction values reaches 10% or less: SERVOPACK built-in fan life, capacitor
life, inrush current limiting circuit life, and dynamic brake circuit life. The /PM (Preventa-
tive Maintenance Output) signal must be allocated.
Even if detection of preventive maintenance warnings is disabled (Pn00F = n.
0),
the /PM signal will still be output as long as it is allocated.
Classifica-
tion
Signal
Connector
Pin No.
Signal
Status
Description
Output
/PM
Must be
allocated.
ON
(closed)
One of the following service life
prediction values reached 10% or
less: SERVOPACK built-in fan
life, capacitor life, inrush current
limiting circuit life, and dynamic
brake circuit life.
OFF (open) All of the following service life
prediction values are greater than
10%: SERVOPACK built-in fan
life, capacitor life, inrush current
limiting circuit life, and dynamic
brake circuit life.
Preventative Maintenance
Warning
/PM (Preventative Mainte-
nance Output) Signal
Sigma-7 Series SERVOPACKs
Monitoring
Monitoring Product Life > Preventative Maintenance
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