11.2.4.5 Diagnostic value '6.HOURS - Number of operating hours'
Display range: 0 ... 4.29E9
Purpose: The runtime meter is incremented every hour as soon as electric
auxiliary power is supplied to the positioner.
11.2.4.6 Diagnostic value '7.HOURR - Resettable operating hours counter'
Display range: 0 ... 4.29E9
Purpose: The runtime meter is incremented every hour as soon as electric
auxiliary power is supplied to the positioner. In contrast to Diagnos‐
tic value '6.HOURS - Number of operating hours' (Page 216), this
value can be reset.
Description: In order to minimize the control valve wear resulting from a poor
control quality, it makes sense to optimize the positioner's param‐
eters. You can recognize optimum parameter settings when the
values of the Diagnostic value '44.VEN1R' / '45.VEN2R' (Page 225)
are low. Low values mean that the switching frequency of the posi‐
tioner pneumatics is also low. In order to carry out a comparison
with various parameter settings, determine the number of switching
cycles per hour. To do this, use the values of the Diagnostic value
'44.VEN1R' / '45.VEN2R' (Page 225) and '7.HOURR'. These three
parameters can be reset to enable simpler determination of the
values.
11.2.4.7 Diagnostic value '8.WAY - Determined travel'
Condition for
linear actuator:
The travel is set in the '3.YWAY' Range of stroke (Page 145) pa‐
rameter.
Display range: 0 ... 130
Purpose: This value in mm or ° specifies the travel determined during the
initialization.
11.2.4.8 Diagnostic value '9.TUP - Travel time up' / '10.TDOWN - Travel time down'
Display range: 0 ... 1000
Purpose: This value indicates the current UP or DOWN travel time in seconds
determined during the initialization.
Diagnostics and troubleshooting
11.2 Diagnostics
SIPART PS2 with 4 to 20 mA/HART
216 Operating Instructions, 11/2019, A5E00074631-AE
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