
P
AGE
68
Hysteresis
This parameter is adjustable from 0 to 300 units representing the width of the band (half
above and half below setoint). Used with On-Off or Alarm outputs to reduce cycling. For
instance, with a value of 4 and a setpoint of 70, the output will turn On when the process
variable drops to 68 and stay On until 72 is reached, then turn Off the output. Factory default
is 3. Display code is HySt.
Input Correction
This parameter is used to adjust the process variable value to compensate for sensor errors.
This Program mode parameter is selectable from -300 to +300 degrees/units. The factory
default is 0. Display code is iCor.
Manual Reset
This parameter is adjustable from -1500 to 1500 units representing a manual shift of propor-
tional band(s) relative to the normal position. Manual reset is intended to be used when
automatic reset is not used to allow compensation for deviations from setpoint which remain
after the process has stabilized. Factory default is 0. Increasing the value increases the
process variable, i.e. if the process variable stabilized too low, increase the manual set.
Integral action, and conversely reset-windup inhibit apply over the same process value range
regardless of the manual reset value. Display code rSEt.
Position Proportioning Sensitivity
A percentage of the first output proportional band width (Pb1).
Process Filter Factor
This Program mode parameter is used to dampen the process value used to calculate output
action. The process value is averaged to dampen the control outputs. This parameter is
adjustable from 1 to 20. Factory default is 1. Display code PFF.
Process Retransmission Output (EO Software Option)
Allows retransmission of the process variable. Factory default is 0 = not selected. Display
code Pout. If selected, must be assigned to a current output and scaled using Process/
Setpoint upper and lower values.
Process/Setpoint Output Upper and Lower Values (Used in conjuction with process or
setpoint retransmission output)
These parameters specify the process or setpoint value range over which the assigned
current output will vary in a linear manner from 100 % to 0 %. If the process value or setpoint
is greater than Pou the output will be 100%. If the process or setpoint value is less than PoL
the output will be 0%. Factory default values are 2000 for the upper value and 0 for the lower
value. Display codes Pou (upper) and PoL (lower).
Process Variable
The process variable refers to the condition of the process being measured (sensed). The
instrument will accept process inputs other than temperature (pressure, level, flow, etc.).
Proportional Band (PB)
This Tune mode parameter selects the span of the proportional output range. This parameter
is adjustable from 1 to 3000 degrees/units. Factory default is 100. If Output 1 is selected as a
proportional output, a display code of Pb1 will be seen. If Output 2 is selected as a propor-
tional output, the display code will be Pb2.
Ramp
A Ramp is the section of profile segment where the setpoint value is being changed from the
initial value to the value selected over the time period selected. The first Ramp of a profile will
take the process value at the time the profile was started as the initial setpoint value.
Содержание MIC 6000
Страница 1: ...Form 2854 Edition 10 December 1993 Installation Wiring Operation Manual MIC 6000 Brand ...
Страница 27: ...PAGE 27 PiA rrH PFF dFF Co1r Ptb Co2r Pout Pou PoL CCon CbS C C B Com Optional EO Option CAd ...
Страница 82: ...THE PARTLOW WEST COMPANY 2 CAMPION ROAD NEW HARTFORD NY 13413 USA 1 800 866 6659 315 797 2222 FAX 315 797 0403 ...