Honeywell EXCEL 5000 User Manual page 199

EXCEL CARE CONTROL ICONS
Parameter Number
Descriptions P Controller (if W is NOT entered as a parameter)
P3 Proportional band Xp
P4 Integral action time Tn (in seconds). Always zero.
P5 Minimum output (in percent)
P6 Maximum output (in percent)
P7 Dummy parameter. This parameter usually stores integral action time. It has no
effect in a P controller.
P Controller (if W is entered as a parameter)
P3 Proportional band Xp
P4 Integral action time Tn (in seconds). Always zero.
P5 Minimum output (in percent)
P6 Maximum output (in percent)
P7 Reference variable (W)
P8 Dummy parameter. This parameter usually stores integral action time. It has no
effect in a P controller.
PI Controller (if W is NOT entered as a parameter)
P3 Proportional band Xp
P4 Integral action time Tn (in seconds). If you set Integral action time to zero in the
internal parameters dialog box, software sets the P4 parameter to 1,000,000. A
number this large effectively disables the integral term.
P5 Minimum output (in percent)
P6 Maximum output (in percent)
P7 Actual integral action time Tn (in seconds). If XD1 is zero, P7 is also zero. If
XD1 is one, P7 contains the user-defined value of Tn stored in P4.
PI Controller (if W is entered as a parameter)
P3 Proportional band Xp
P4 Integral action time Tn (in seconds). If you set Integral action time to zero in the
internal parameters dialog box, software sets the P4 parameter to 1,000,000. A
number this large effectively disables the integral term.
P5 Minimum output (in percent)
P6 Maximum output (in percent)
P7 Reference variable (W)
P8 Actual integral action time Tn (in seconds). If XD1 is zero, P7 is also zero. If
XD1 is one, P7 contains the user-defined value of Tn stored in P4.
PD Controller (if W is NOT entered as a parameter)
P3 Proportional band Xp
P4 Derivative time Tv (in seconds).
P5 Minimum output (in percent)
P6 Maximum output (in percent)
P7 Dummy parameter. This parameter usually stores integral action time. It has no
effect in a PD controller.
PD Controller (if W is entered as a parameter)
P3 Proportional band Xp
P4 Derivative time Tv (in seconds).
P5 Minimum output (in percent)
P6 Maximum output (in percent)
P7 Reference variable (W)
P8 Dummy parameter. This parameter usually stores integral action time. It has no
effect in a PD controller.
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ALPHABETIC REFERENCE
74-5577–33 (US)
EN2B-0184 GE51 R0518 (Europe)