Siemens Sitrans LR250 - Page 98

Page 92 SITRANS LR250 (PROFIBUS PA) – INSTRUCTION MANUAL 7ML19985JF02
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Parameters
4.17.1. Time Last Serviced
Time elapsed since last service. Can be reset to zero after performing a service.
To reset to zero:
• In SIMATIC PDM, open the menu Device – Maintenance, click on the
Service Interval tab, and click on Service Performed to restart the timer
and clear any fault messages.
• Via the handheld programmer, manually reset Time Last Serviced (4.17.1.) to
zero.
4.17.2. Remaining Lifetime
Read only. Total Service Interval (4.17.6.) less Time Last Serviced (4.17.1.).
4.17.3. Maintenance Required Limit
If Remaining Lifetime (4.17.2.) is equal to or less than this limit, the device sets
Maintenance Required.
a) Modify limit values as required.
b) Set Maintenance Alert Activation (4.17.5.) to the desired option.
4.17.4. Maintenance Demanded Limit
If Remaining Lifetime (4.17.2.) is equal to or less than this limit, the device sets
Maintenance Demanded.
a) Modify limit values as required.
b) Set Maintenance Alert Activation (4.17.5.) to the desired option.
4.17.5. Maintenance Alert Activation
Allows you to enable a maintenance limit.
Values
Range: 0 to 20 years
Default: 0.164 years
Values
Range: 0 to 20 years
Default: 0.019 years
Note: To modify this parameter via SIMATIC PDM it must be accessed via the
pull-down menu Device – Maintenance.
Options
* Timer off
On - no limits
On - limit 1
On - limits 1 - 2
On - limit 2