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

9.4.2.18

'48.\\TIM' Monitoring time for setting of fault message 'Control deviation'

Possible settings:
Purpose:
Factory setting:
Note
Activated tight closing/fast closing function
If the function is activated, then the monitoring of control deviation is turned off in the respective
overflow direction for the '49. LIM' parameter. The following applies: 'YCDO: < 0 %' and
'YCUP: > 100 %'. This functionality is especially advantageous for valves with lining. For long-
term monitoring of the end positions, we recommend that you activate the 'F. ZERO' and 'G.
OPEN' parameters.
9.4.2.19

'49.\\LIM' Response threshold of fault message 'Control deviation'

Possible settings:
Purpose:
Factory setting:
Note
Activated tight closing/fast closing function
If the function is activated, then the monitoring of control deviation is turned off in the respective
overflow direction for the '49. LIM' parameter. The following applies: 'YCDO: < 0 %' and
'YCUP: > 100 %'. This functionality is especially advantageous for valves with lining. For long-
term monitoring of the end positions, we recommend that you activate the 'F. ZERO' and 'G.
OPEN' parameters.
SIPART PS2 with and without HART
Operating Instructions, 05/2017, A5E00074631-AC
● Auto
● 0 ... 100
The '48. TIM' parameter is used to set the time in seconds within
which the positioner must have reached the regulated condition. The
corresponding response threshold is specified in the '49. LIM' pa‐
rameter.
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 '48. TIM' and '49. 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
9.4 Description of parameters
163