Preventative Maintenance - YASKAWA SGD7S-****20A Series Product Manual

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, and dynamic brake circuit life. You can change the setting of
Pn00F = n.X to enable or disable these warnings.
Parameter

n.
(default setting)
Pn00F

n.
/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, and dynamic brake circuit life. The /PM (Preventative 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.
Classifi-
Signal
cation
Output /PM
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 on page 6-6
0
Do not detect preventative maintenance warnings.
1 Detect preventative maintenance warnings.
Connector Pin No.
ON (closed)
Must be allocated.
OFF (open)
Description
Signal
Status
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.
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.
9.4 Monitoring Product Life

9.4.3 Preventative Maintenance

When Classifi-
Enabled cation
After
Setup
restart
Description
9
9-15