Runtime (Operating Hours Counter) - Siemens SINAMICS S120 Function Manual

4.5

Runtime (operating hours counter)

Total system runtime
The total system runtime is displayed in p2114 (Control Unit). Index 0 indicates the
system runtime in milliseconds. After reaching 86.400.000 ms (24 hours), the value
is reset. Index 1 indicates the system runtime in days.
The count value is saved when the drive unit is powered down. When the drive unit
is powered up, the counter continues to run with the value that was saved the last
time that the drive unit was powered down.
Relative system runtime
The relative system runtime after the last POWER ON is displayed in p0969 (Con-
trol Unit). The value is in milliseconds and the counter is reset to 0 after 49 days.
Current motor operating time
The motor operating time counter p0650 (drive) continues when the pulses are en-
abled When the pulse enable is withdrawn, the counter is stopped and the value
saved.
The value can only be stored with a CU320 with order number 6SL3040--....--0AA1
and version C or higher.
If p0651 = 0, the counter is deactivated.
If the maintenance interval set in p0651 is reached, fault F01590 is triggered. Once
the motor has been maintained, the maintenance interval must be reset.
Operating hours counter for the fan
The operating hours of the fan in the power section are displayed in p0251 (drive).
The number of hours operated can only be reset to 0 in this parameter (e.g. after
the fan has been replaced). The service life of the fan is entered in p0252 (drive).
Alarm A30042 is output 500 hours before this figure is reached. Monitoring is deac-
tivated with p0252 = 0.
© Siemens AG, 2005. All rights reserved
SINAMICS S120 Function Manual, 06/05 Edition
Extended functions
Runtime (operating hours counter)
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