Message Termination criterion NAMUR
status
1)
ID
PST stopped: Tolerated deviation of
starting position exceeded
Deviation > Tol_start 1082
PST stopped: Tolerated deviation of
external target position exceeded
Deviation > Tol_ext 1083
PST stopped: Too long duration of move-
ment from x2 to x1 compared to refer-
ence
Relative duration > 2 *
Fact_duration
1084
PST stopped: Total duration too long
compared to reference
Relative duration > 2 *
Fact_duration
1085
PST stopped: Too long duration com-
pared to absolute upper limit
Duration > T_total 1086
PST stopped: Out of valid position range
when back at starting position x1
Deviation > Tol_target 1087
PST stopped: Out of valid position range
during movement from x1 to x2
Deviation > Tol_target 1088
PST stopped: Out of valid position range
at position x2
Deviation > Tol_target 1089
PST stopped: Out of valid position range
during movement from x2 to x1
Deviation > Tol_target 1090
PST stopped: Out of valid position range
when back at starting position x1
Deviation > Tol_target 1091
PST stopped: Too long duration of move-
ment from x1 to x2 compared to refer-
ence
Relative duration > 2 *
Fact_duration
1099
PST stopped: Below lower pressure limit Differential pressure <
P_low
1102
PST stopped: Above upper pressure limit Differential pressure >
P_high
1103
1) Factory setting
Tab. 84: Messages about a PST abort
Additional messages for Partial Stroke Test
If the following criteria are met, a message is generated. The Partial Stroke Test is not aborted.