Watlow Electric Integrated Controller User Manual Rev C EZ-ZONE PM - Manual (Page 32)

Wa t l o w E Z - Z O N E
®
P M I n t e g r a t e d C o n t r o l l e r • 3 0 • C h a p t e r 5 O p e r a t i o n s P a g e
Display Parameter name
Description
Set-
tings
Range Default Appears If
[Loop]
[oPEr]
Loop Menu
[`r;En]
[ r;En] Loop
Remote Enable
Switch control to the remote set point.
[``no] No
[`YES] Yes No PM6 _ _ _ _-_ (R
) _ _ A A A
[`r;ty]
[ r.ty] Loop
Remote Set Point Type
Select how the remote set point will be deter-
mined.
[AUto] Auto (closed loop)
[MAn] Manual (open loop) Auto Remote Enable
is set to Yes.
[`C;M]
[ C.M] Loop
Control Mode
Select the method that the controller will use to
control.
[`off] Off
[AUto] Auto (closed loop)
[MAn] Manual (open loop) Auto always
[A;tSP]
[A.tSP} Loop
Autotune Set Point
Set the set point that the autotune will use, as a
percentage of the current set point.
50.0 to 200.0% 90.0 Heat Algorithm
or Cool Algo-
rithm (Setup
Page) is set to
PID.
[`AUt]
[ AUt] Loop
Autotune Request
Start an autotune. While autotune is active, the
Home Page will display
[Attn] [tUn1]. When
the autotune is complete, the message will clear
automatically.
[``no] No
[`YES] Yes No Heat Algorithm
or Cool Algo-
rithm (Setup
Page) is set to
PID.
[`C;SP]
[ C.SP] Loop
Closed Loop Set Point
Set the set point that the controller will automati-
cally control to.
Low Set Point to High Set Point
(Setup Page)
75.0°F or
units
24.0°C
always
[`id;S]
[ id.S] Loop
Idle Set Point
Set a closed loop set point that can be triggered by
an event state.
Low Set Point to High Set Point
(Setup Page)
75.0°F or
units
24.0°C
always
[`h;Pb]
[ h.Pb] Loop
Heat Proportional Band
Set the PID proportional band for the heat outputs.
0.001 to 9,999.000°F or units
-1,110.555 to 5,555.000°C
25.0°F or
units
14.0°C
Heat Algorithm
(Setup Page) is
set to PID.
[`h;hy]
[ h.hy] Loop
Heat Hysteresis
Set the control switching hysteresis for on-off con-
trol. This determines how far into the “on” region
the process value needs to move before the output
turns on.
0.001 to 9,999.000°F or units
-1,110.555 to 5,555.000°C
3.0°F or
units
2.0°C
Heat Algorithm
(Setup Page) is
set to On-Off.
[`C;Pb]
[ C.Pb] Loop
Cool Proportional Band
Set the PID proportional band for the cool outputs.
0.001 to 9,999.000°F or units
-1,110.555 to 5,555.000°C
25.0°F or
units
14.0°C
Cool Algorithm
(Setup Page) is
set to PID.
[`C;hy]
[ C.hy] Loop
Cool Hysteresis
Set the control switching hysteresis for on-off con-
trol. This determines how far into the “on” region
the process value needs to move before the output
turns on.
0.001 to 9,999.000°F or units
-1,110.555 to 5,555.000°C
3.0°F or
units
2.0°C
Cool Algorithm
(Setup Page) is
set to On-Off.
[``ti]
[ ti] Loop
Time Integral
Set the PID integral for the outputs.
0 to 9,999 seconds per repeat 180.0 sec-
onds per
repeat
Heat Algorithm
or Cool Algo-
rithm (Setup
Page) is set to
PID.
[``td]
[ td] Loop
Time Derivative
Set the PID derivative time for the outputs.
0 to 9,999 seconds 0.0
seconds
Heat Algorithm
or Cool Algo-
rithm (Setup
Page) is set to
PID.
Note: Some values will be rounded off to fit in the four-character display. Full values can be read with other interfaces.
If there is only one instance of a menu, no submenus will appear.