Service
10.3 Monitoring of service interval
During operation of electric drives, mechanical and electrical components are exposed to wear and
tear.
The service interval remaining until the next service (percentage of maintenance interval) of the fol-
lowing components can be monitored:
− DC-link of frequency inverter
− Fan of frequency inverter
1533 Maintenance Note
When the service interval until service has expired (value 0%), the frequency inverter can indicate
− via parameter
Maintenance Note 1533 that maintenance is required or
− output a warning message
The behavior can be set up.
The service interval remaining until service can be displayed via parameters. Service is required as
soon as the remaining service interval until maintenance has expired (value 0%). It must also be
checked if the component must be replaced.
10.3.1 DC-link
Signalling when service is required
The DC-link of the frequency inverter is equipped with electrolyte capacitors. The service interval for
electrolyte capacitors is mainly defined by the temperature. In high temperatures the electrolytic liquid
will evaporate, which reduces the capacitance of the capacitor. The temperature inside the electrolyte
capacitor depends on two factors: the ambient temperature and the internal heating caused by cur-
rent ripple. The temperature of the electrolyte capacitors is measured by a sensor, so that high ambi-
ent temperatures are taken into account for service interval calculation.
1534 Operation Mode Service Interval DC-link
Via parameter
Operation Mode Service Interval DC-link 1534, you can set how the warning is to
occur when the remaining service interval until service has expired. The information can be indicated
in a parameter or a service message can be output.
Operation Mode Service In-
terval DC-link 1534
0 - No Action
The service interval remaining until service is monitored. The re-
maining service interval (in percent) can be indicated via parameter
Service Interval DC-link 1530. No service info or message is out-
1 -
Service Parameter
Message
The service interval remaining until service is monitored. The re-
maining service interval (in percent) can be indicated via parameter
Service Interval DC-link 1530. As soon as the remaining time until
service has expired, parameter
Maintenance Note 1533 will show
the message "M0001 Service DC-Link". Factory setting.
2 - Alarm Message
The service interval remaining until service is monitored. The re-
maining service interval (in percent) can be indicated via parameter
Service Interval DC-link 1530. As soon as the time remaining until
service has expired:
− Parameter Maintenance Note 1533 will show the message
"M0001 Service DC-Link".
− A warning message will be output and a warning signal will be
set. The warning will also be displayed on the operator panel.
Parameter
Maintenance Note 1533 displays message "M0000" if the remaining service interval until
service of the DC-link has not elapsed and no service is required.
273
Monitoring of service interval 06/2013 Operating Instructions
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