Festo CMSH - Page 64

64
Festo — CMSH — 2021-10
Commissioning
T_wait
T_wait
T_wait
1 2 3
Fig. 33: Position limiting
1
Tol_start
2
Tol_target
3
Tol_ext
Partial Stroke Test configuration parameters
The configuration parameters can only be adjusted via EDD and DTM.
Abbreviation Description Value
1)
x1 Target position 1 100%
x2 Target position 2 90%
Tol_start Tolerance start position 100%
Tol_ext Tolerance setpoint position 100%
Tol_target Permitted deviation from x1 or x2 during PST 5%
T_wait Waiting time 5 s
Fact_duration Factor for movement times for determining the
message threshold
5
P_low Minimum permissible differential pressure -10 bar
P_high Maximum permissible differential pressure 10 bar
T_total Absolute upper limit for total duration 180 s
T_interval Test interval 8760 h
Tol_interval Tolerance for test interval 1 h
1) Factory setting
Tab. 83: Partial Stroke Test configuration parameters
Messages about a PST abort
Each message is displayed in a separate message view
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4.1.3.3 Message views.
The message text is shown in abbreviated form on the display.