Efficient Networks Siemens Sinamics S120 - Manual (Page 203)

Basic functions
6.12 Runtime (operating hours counter)
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
203
6.12 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.
At power-off the counter value is saved.
After 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 (Control Unit).
The value is in milliseconds and the counter overflows after 49 days.
Actual motor operating hours
The motor operating hours counter p0650 (drive) is started when the pulses are enabled.
When the pulse enable is withdrawn, the counter is stopped and the value saved.
The values can only be stored with a CU320 with order number 6SL3040-....-0AA1 and
version C or higher.
If p0651 is at 0, the counter is de-activated.
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.
CAUTION
If the motor data set is switched during the star/delta switchover without the motor being
changed, the two values in p0650 must be added to determine the correct number of motor
operating hours.
Operating hours counter for the fan
The operating hours of the fan in the power unit are displayed in p0251 (drive).
The number of hours operated can only be reset to 0 in this parameter (e.g. after a 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 deactivated when p0252 = 0.