Micromod Micro-DCI: 53SL6000 Single Loop Controller - Manual (Page 103)

8.8.3 Speed Factor Adjusting
1. If a slide wire is connected to AI2 instead of the
remote setpoint, ensure the remote/local push
button is set to local for setpoint adjustment or
that remote enable (ProG-di-di2) is set to 0.
2. Adjust the controller for zero deviation with the
setpoint push buttons or with the manual con-
trol output push buttons.
3. Switch the controller to auto by pressing the
auto/manual push button. The auto indicator
activates. The valve should not be moving in
either direction at this time. If the process per-
mits, move the setpoint 5% to cause a devia-
tion from the process variable. The process
variable bar should move as the deviation is
eliminated by action of the motorized valve. If
the process variable bar moves in the opposite
direction, check the conF-cn.1-rSW parameter
and/or the wiring from the 2DI/2DO module
TB2 DO3/DO4 outputs to the valve motor.
Check the process variable bar for oscillation.
4. Reduce the Pb value (increase Pb action) and
induce another deviation by moving the set-
point. Continue this procedure until a small
process oscillation is observed in the process
variable bar. If it is necessary to have a tighter
control zone, the conF-cn.1-cZ parameter can
be reduced; however, the value must not be
smaller than process signal noise fluctuations.
5. Increase the Pb value (reduce Pb action) by
approximately 30% for a stable operating mar-
gin.
53SL6000 Instruction Manual Section 8. Eight Control Strategies
8-16