Monitoring Of Number Of Changes In Direction 'O.\\Dchg; O1.Limit Limit 1; O2.Fact1 Factor 1 0.1 - Siemens SIPART PS2 Operating Instructions Manual

Parameter assignment
9.4 Description of parameters
9.4.3.11

Monitoring of number of changes in direction 'O.\\DCHG'

O. DCHG - Monitoring of number of changes in direction
Requirement:
Possible settings:
Purpose:
Factory setting:
O1.LIMIT - Limit
Adjustment range:
Purpose:
Factory setting:
O2.FACT1 - Factor 1
Adjustment range:
Purpose:
Factory setting:
188
The '52.XDIAG' Activating for extended diagnostics (Page 166) pa‐
rameter is set to 'On1', 'On2' or 'On3'.
● OFF
● On
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-param‐
eters are displayed.
The current value is displayed in Diagnostic value '2.CHDIR - Num‐
ber of changes in direction' (Page 201). 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 di‐
rection 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
SIPART PS2 with and without HART
Operating Instructions, 05/2017, A5E00074631-AC