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Siemens SIPART PS2 6DR52xx User Manual

Page 130

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Operation

130

SIPART PS2 Manual

A5E00074631--06

Save maintenance data

Pressing the increment button

for at least 5 seconds triggers a

memory function. In doing so, the diagnostic data 7 to 18 is saved in a

non--volatile memory as the “data of the last maintenance”. This

diagnostic data consists of selected values that, when changed,

can provide information on the mechanical wear of the valve.
Normally, this function is operated via PDM, menu item: Device!Save

maintenance info. The comparison of the data of the last maintenance

to the current data is possible via PDM.

Prediction up

Prediction down

see chapter 4.7, page 143.

Number of operating hours in actuating range WT00 to WT95

If the positioner is in automatic mode, statistical information is

generated as to how long a valve or a flap was operated in which

section of the actuating range. For this purpose, the entire actuating

range (0 to 100 %) is divided into 8 sections (actuating ranges). The

positioner registers the current position continuously and increments

the operating hours counter that is assigned to the relevant section

(actuating range) every hour. This allows conclusions to be made about

past operating conditions and is in particular for the assessment of the

control characteristics of the control loop or of the entire control valve.
The actuating range is divided as follows:

Actuating

range

WT00

WT05

WT10

WT30

WT50

WT70

WT90

WT95

Actuating

range

section

< 5 %

≥5 %

< 10 %

≥10 %

< 30 %

≥30 %

< 50 %

≥50 %

< 70 %

≥70 %

< 90 %

≥90 %

< 95 %

≥95 %

The 8 operating hours counters can be set to zero together by pressing

the increment button (for at least 5 seconds).
TIP: Since the actuating ranges are arranged at the end of the

diagnosis menu with numbers 45 to 52, press the decrement button

several times in addition to the operating mode button. That is how you

access diagnosis numbers 45 to 52 quickly.

Setpoint current
You can have the current setpoint displayed here in mA.

.

NOTE
All diagnosis values are updated every 15 minutes in the non-volatile

memory so that only the values of the past quarter of an hour are lost

if there is a power failure.

42 STORE

43 PRUP

44 PRDN

45 WT00 to

52 WT95

53 MA

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