Pixsys ATR226 - PID Tuning Parameters: Deviation, Gap, Band, Integral Time; Alarm Intervention Modes

User manual - ATR227 - 19
55 VGWX Setpoint Deviation Tune (Password 5678)
Selects the deviation from the command setpoint for the threshold used by
autotuning to calculate the P.I.D. parameters.
0.0-500.0°C/°F. Default: 30.0.
56
P*WX Max Gap Tune (Password 5678)
Selects the max. process-setpoint gap beyond which the automatic tune
recalculates PID parameters.
0.1..50.0°C/°F. Default: 1.0°C
57
PQSE Minimum Proportional Band (Password 5678)
Selects the min. proportional band value selectable by the automatic tune.
0.0..100.0°C/°F. Default: 5.0°C
58
PDSE Maximum Proportional Band (Password 5678)
Selects the max. proportional band value selectable by the automatic tune.
0.0..300.0°C/°F. Default: 50.0°C
59
PQLW Minimum Integral Time (Password 5678)
Selects the min. integral time value selectable by the automatic tune.
0.0..999.9 seconds. Default: 40.0s.
10 Alarm Intervention Modes
Absolute Alarm or Threshold Alarm (D$/ selection)
1
Alarm Spv
Pv
O
On On
O
Hysteresis
parameter
$+< > 0
Time
Alarm
output
Absolute alarm with controller in
heating functioning (Par. 7
$FWW selected
+HDW ) and hysteresis value greater than “0”
(Par.29
$+< > 0).*
2
Alarm Spv
O
On On
O
Hysteresis
parameter
$+< < 0
Time
Alarm
output
Absolute alarm with controller in heating
functioning
(Par.7
$FWW selected +HDW ) and hysteresis
value less than “0” (Par.29
$+< < 0).*