Despatch Protocol Plus Controller (Heat Only) - Manual (Page 33)

Protocol Plus Owner’s Manual O PERATION
Version 2 33
Copyright © 2010 by Despatch Industries.
All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any
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5.6.5.2. Activate Auto Start
1. On Auto Start page, set Enable to Yes .
2. LCD displays Active , current date and time
5.6.5.3. Deactivate Auto Start
On Auto Start page, set Enable to No .
Once Auto Start is activated, continue to use all operating modes as you normally would.
If an operating mode is running at the time of a preset Auto Start function (provided Auto
Start is activated), the existing operating mode will override the Auto Start function and
the Auto Start will not turn on.
O
All processes set to run in Auto Start must be at least one
minute long for all Run Modes (Manual, Timer, and Profile).
5.6.6. Setting Up PID Page
The PID Page contains parameters that control the response to the setpoint and process
variable input. Table 5 shows the menu items available.
Table 5. PID Page Parameters and Values.
Menu Item Display Description Range
Display units PID Temp Unit Set display units to °C or °F °C or °F
Proportional
band
PID Prop Band
Set proportional band for
tuning
1 to 56°C (1 to 100°F)
Integral
reset PID
Reset/Rep/Min
Set integral reset for tuning 0.0 to 100 seconds/repeat
Derivative
Rate PID Rate In
Sec
Set derivative rate for tuning 0.0 to 500 seconds
AutoTune PID AutoTune Enable auto tuning function Disable, Enable
5.6.6.1. Access the PID Page
1. Enter Setup Mode.
2. Press
Page until PID displays.
3. Press Menu .
4. Change parameters by pressing Menu until the desired parameter is displayed. Press
▲ or ▼ to set the desired value.