9.4 Monitoring Product Life
9.4.3 Preventative Maintenance
9-15
9
Monitoring
9.4.3
Preventative Maintenance
You can use the following functions for preventative maintenance.
•
Preventative maintenance warnings
•
/PM (Preventative Maintenance Output) signal
The SERVOPACK can notify the host controller when it is time to replace any of the main parts.
Preventative Maintenance Warning
An A.9b0 warning (Preventative Maintenance Warning) is detected when any of the following
service life prediction values drops to 10% or less: SERVOPACK built-in fan life, capacitor life,
inrush current limiting circuit life, dynamic brake circuit life, and built-in brake relay life. You can
change the setting of Pn00F = n.
X to enable or disable these warnings.
Note: Service life prediction of the built-in brake relay is performed as preventative maintenance for SERVOPACKs
with built-in Servomotor brake control only when Pn023 is set to n.
0.
/PM (Preventative Maintenance Output) Signal
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, dynamic brake circuit life, and built-in brake relay life. The /PM (Pre-
ventative 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.
Note: You must allocate the /PM signal to use it. Use Pn514 = n.
X (/PM (Preventative Maintenance Output)
Signal Allocation) to allocate the signal to connector pins. Refer to the following section for details.
6.1.2 Output Signal Allocations
Parameter
Description
When
Enabled
Classifi-
cation
Pn00F
(200F
hex)
n.
0
(default setting)
Do not detect preventative maintenance warnings.
After
restart
Setup
n.
1
Detect preventative maintenance warnings.
Classifi-
cation
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, dynamic brake circuit life, and built-in brake
relay 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, dynamic brake circuit life, and built-in brake
relay life.