Siemens SIPART PS2 Operating Instructions Manual page 184

Parameter assignment
8.3 Description of parameters
Purpose:
Factory setting:
O1.LIMIT - Limit
Adjustment range:
Purpose:
Factory setting:
O2.FACT1 - Factor 1
Adjustment range:
Purpose:
Factory setting:
O3.FACT2 - Factor 2
Adjustment range:
Purpose:
Factory setting:
184
Use this parameter to continuously monitor the number of changes
in direction of the actuator beyond the deadband. Monitoring is per‐
formed in three steps. Set the following sub-parameters appropri‐
ately. To activate monitoring, set the parameter to 'On'. Sub-pa‐
rameters are displayed.
The current value is displayed in Diagnostic value '2.CHDIR - Num‐
ber of changes in direction' (Page 259). The positioner triggers a
message if the current value exceeds one of the three thresholds.
OFF
1 ... 1.00E8
Use this sub-parameter to set the base limit for the changes of
direction of the actuator. Set the base limit in a range from '1' to
'1.00E8'.
1.00E6
0.1 ... 40.0
Use this sub-parameter to set the factor for formation of threshold 1.
Set the factor in a range from '0.1' to '40.0'. The threshold is the
product of 'O1.LIMIT' and 'O2.FACT1'.
The threshold 1 message is displayed when threshold 1 is excee‐
ded. This message is only output if threshold 2 or 3 is not exceeded
at the same time. The process to activate and display this message
is described in the 'XDIAG' parameter.
1.0
0.1 ... 40.0
Use this sub-parameter to set the factor for formation of threshold 2.
Set the factor in a range from '0.1' to '40.0'. The threshold is the
product of 'O1.LIMIT' and 'O3.FACT2'.
The threshold 2 message is displayed when threshold 2 is excee‐
ded. This message is only output if threshold 3 is not exceeded at
the same time. The process to activate and display this message is
described in the 'XDIAG' parameter.
2.0
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC