Table of Contents
Advertisement
Parameterizing/addressing
9.4 Description of parameters
9.4.3.7
Monitoring the upper endstop "G._OPEN"
G. OPEN - Monitoring the upper endstop
Note
Fault detection
Monitoring the upper endstop not only responds to faults in the valve. If the limit thresholds
of the upper endstop are exceeded due to misalignment of the position feedback, the
misalignment also triggers an error message.
Requirement:
Possible settings:
Purpose:
Factory setting:
190
The "'52.XDIAG' Activating for extended diagnostics (Page 174)"
parameter is set to "On".
• OFF
• On
Use this parameter to activate continuous monitoring of the upper
endstop. The monitoring is executed whenever the valve is in the
"Lower tight closing" position. It checks whether the upper endstop
has changed compared to its value during initialization.
Configure the following settings to activate the function:
1. Ensure that the "'39.YCLS' Tight closing with manipulated
variable (Page 166)" parameter is set to "uP" or "do uP".
2. Set the "G. OPEN" parameter to "On". Sub-parameters are
displayed. Monitoring is activated.
3. Set the suitable parameter values in sub-parameters. The
setting options available in sub-parameters are described
below.
The current value is displayed in "Diagnostics parameter
'19.OPEN' Displacement of upper end stop (Page 214)". The posi-
tioner triggers a fault message if the current value exceeds one of
the three configurable limit thresholds.
If the value undershoots a threshold, the fault message is saved in
a power fail-safe manner until:
• A fault no longer occurs.
• The device is re-initialized.
• The "G. OPEN" parameter is deactivated.
Sub-parameters are described below.
OFF
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12
Advertisement
Table of Contents
