Periodic Maintenance; Periodic Maintenance; Replacement Parts - Omron JZA User Manual

7.3 Periodic Maintenance

7.3

Periodic Maintenance

The drive has various "maintenance monitors." This feature provides advance maintenance warning and eliminates the
need to shut down the entire system for unexpected problems. The drive allows the user to check the following maintenance
periods.
• Cooling Fan
• Electrolytic Capacitors (Main Circuit)
• Inrush Prevention Circuit
• IGBT
u

Replacement Parts

Table 7.3 contains the estimated performance life of components that require replacement during the life of the drive. Only
use OYMC replacement parts for the appropriate drive model and revision.
Component
Electrolytic Capacitors (Main Circuit)
<1> The drive has few serviceable parts and may require complete drive replacement.
NOTICE: Estimated performance life based on specific usage conditions. These conditions are provided for the purpose of replacing
parts to maintain performance. Some parts may require more frequent replacement due to poor environments or rigorous use.
Usage conditions for estimated performance life:
• Ambient temperature: Yearly average of 30 °C
• Load factor: 80% maximum
• Operation time: 12 hours a day
n Performance Life Monitors
The drive calculates the maintenance period for components that may require replacement during the life of the drive. A
percentage of the maintenance period is displayed on the LED digital operator by viewing the appropriate monitor
parameter.
When the maintenance period reaches 100%, there is increased risk that the drive may malfunction. OYMC recommends
checking the maintenance period regularly to ensure maximum performance life.
Refer to Recommended Periodic Inspection on page 142
Parameter
U4-04 Cooling Fan
Main Circuit (DC bus)
U4-05
Electrolytic Capacitors
U4-06 Inrush (pre-charge) relay
U4-07 IGBT
n
Related Drive Parameters
Parameter
o4-03
o4-05
o4-07
o4-09
NOTICE: After replacing parts, reset the appropriate maintenance parameters (o4-03, o4-05, o4-07, and o4-09) to 0. If these parameters
are not reset, the function will continue to count down the performance life of the new replaced components.
144
Table 7.3 Estimated Performance Life
Cooling Fan
Table 7.4 Performance Life Monitors Used for Component Replacement
Component
Displays the accumulated cooling fan operation time as a percentage of the specified
maintenance period (displayed in percent %).
Displays the accumulated time the capacitors are used as a percentage of the specified
maintenance period.
Displays the number of times the drive is powered up as a percentage of the performance life
of the inrush circuit.
Displays the percentage of the maintenance period reached by the IGBTs.
Table 7.5 Maintenance Parameter Settings
Cooling Fan Maintenance Setting (Operation Time)
Capacitor Maintenance Setting
Inrush Prevention Relay (pre-charge) Maintenance Setting
IGBT Maintenance Setting
Estimated Performance Life
for more details.
Contents
Parameter Name
Operator Display
SIEP C710606 33A OYMC AC Drive – J1000 User Manual
2 ~ 3 years
<1>
10 years