Tim' Monitoring Time For Setting Of Fault Messages; Lim' Response Threshold For Fault Message - Siemens SIPART PS2 Operating Instructions Manual

9.3.2.15

'45.\\TIM' Monitoring time for setting of fault messages

Possible settings:
Purpose:
Factory setting:
Note
Activated tight closing function
If the tight closing function is activated, then for the ' LIM' parameter the monitoring of control
deviation is turned off in the appropriate overflow direction. Then 'YCDO: < 0 %' and
'YCUP: > 100 %'. This functionality is especially advantageous for valves with soft seats. For
long-term monitoring of the endstop positions, we recommend activating the parameters
Monitoring the lower endstop ''F.\\ZERO' (Page 186) and Monitoring the upper endstop 'G.\
\OPEN' (Page 187).
9.3.2.16

'46.\\LIM' Response threshold for fault message

Possible settings:
Purpose:
Factory setting:
Note
Activated tight closing function
If the tight closing function is activated, then for the ' LIM' parameter the monitoring of control
deviation is turned off in the appropriate overflow direction. Then 'YCDO: < 0 %' and
'YCUP: > 100 %'. This functionality is especially advantageous for valves with soft seats. For
long-term monitoring of the endstop positions, we recommend activating the parameters
Monitoring the lower endstop ''F.\\ZERO' (Page 186) and Monitoring the upper endstop 'G.\
\OPEN' (Page 187).
SIPART PS2 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00127926-AB
● Auto
● 0 ... 100
The ' TIM' parameter is used to set the time in seconds within which
the positioner must have reached the regulated condition. The cor‐
responding response threshold is specified in the ' LIM' parameter.
When the configured time is exceeded, the fault message output is
set.
Auto
● Auto
● 0 ... 100
This parameter is used to set a value for the permissible size of the
control deviation to trigger a fault message. The value is given in
percent.
If the ' TIM' and ' LIM' parameters are set to 'Auto', then the fault
message is set if the slow step zone is not reached within a certain
period of time. Within 5 to 95% of the actuator travel, this time is twice
the initialization travel time, and ten times the initialization travel time
outside of 10 to 90%.
Auto
Parameter assignment
9.3 Description of parameters
167