Thermcraft XST-3-0-36-3V - Manual (Page 198)

Operation Installation and Operation Handbook
2-14 2416 Controller
Name Description
Atun Autotune list
tunE One-shot autotune enable
drA
Adaptive tune enable
drA.t Adaptive tune trigger level in
display units. Range = 1 to 9999
Adc Automatic Droop Compensation
(PD control only)
Pid PID list
G.SP If Gain Scheduling has been
enabled (see Chapter 4), this
parameter sets the PV below
which ‘
Pid.1’ is active and above
which ‘
Pid.2’ is active.
SEt
‘
Pid.1’ or ‘Pid.2’ selected
Pb Proportional Band ( SEt 1)
(in display units)
ti
Integral Time in secs (
SEt 1)
td Derivative Time in secs ( SEt 1)
rES Manual Reset (%) ( SEt 1)
Hcb
Cutback High (
SEt 1)
Lcb Cutback Low ( SEt 1)
rEL.C Relative Cool Gain ( SEt 1)
Pb2
Proportional Band (
SEt 2)
ti2 Integral Time in secs ( SEt 2)
td2
Derivative Time in secs (
SEt 2)
rES.2 Manual Reset (%) ( SEt 2)
Hcb2
Cutback High (
SEt 2)
Lcb2 Cutback Low ( SEt 2)
rEL.2
Relative Cool Gain (
SEt 2)
The following three parameters are used for
cascade control. If this facility is not being
used, then they can be ignored.
FF.Pb
SP, or PV, feedforward propband
FF.tr Feedforward trim %
FF.dv
PID feedforward limits ± %
Name Description
mtr Motor list - see Table 4-3
tm Valve travel time in seconds
In.t Valve inertia time in secs
bAc.t Valve backlash time in secs
mp.t Minimum ON time of output pulse
U.br Not available in 2416
SP Setpoint list
SSEL Select SP 1 to SP16, depending
on configuration
L-r Local
(
Loc) or remote (rmt)
setpoint select
SP 1 Setpoint one value
SP 2 Setpoint two value
rm.SP Remote setpoint value
rmt.t Remote setpoint trim
rat Ratio setpoint
Loc.t Local setpoint trim
SP L Setpoint 1 low limit
SP H Setpoint 1 high limit
SP2.L Setpoint 2 low limit
SP2.H Setpoint 2 high limit
Loc.L Local trim low Theses
parameters only
appear if
PDSIO is fitted
Loc.H Local trim high and Loc.t
(remote setpoint
+ local trim) in
SP Config list is
selected
SPrr Setpoint Rate Limit
Hb.ty Holdback Type for setpoint rate
limit (
OFF, Lo, Hi, or bAnd)
Hb Holdback Value for setpoint rate
limit in display units. (
Hb.ty ≠
Off)