ALPHABETIC REFERENCE EXCEL CARE CONTROL ICONS
74-5577–33 (US) 204
EN2B-0184 GE51 R0518 (Europe)
There is an automatic switchover from P control during the start-up phase to PI
control during normal operation.
The switching table sets the digital software point Enable_I_comp according to the
following rules:
• Enable the I component 15 minutes after the negative transition of user address
STARTUP. Before this transition, the main and auxiliary controllers act as P
controllers because the I component is switched to zero by the XD digital input in
PID Plus.
• A manual override in the second column. The override function is active if
Override_enable is 1 (enabled by manual switch). If override is enabled, a user
can switch the I component on and off via Manual_I_Comp no matter what the
status is of STARTUP.
See Appendix B: STARTUP User Address for information on how the user address
operates. This application works only if STARTUP is set according to the information
in Appendix B.
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