User guide

Watlow EZ-ZONE
®
PM PID Controller • 85 • Chapter 9 Features
How to Change the Control Model Number to a PM Express
1. Enter Factory Page [FCty], Calibration Menu [`CAL] via front panel or using EZ-ZONE Configurator
Software.
2. Once there, using the green advance button navigate to the Part Number [``Pn] prompt (lower display).
The upper display will show factory [fCtY] indicating the factory model number as shown on the side of
the control is currently in effect.
3. Push the green advance button one more time where the Public Key [Code] prompt will be displayed in
the lower display and the number [4999] in the upper display.
4. Using the up or down arrow keys enter 2501 and push the green advance button to execute the change.
Note:
As noted above, when switching from an integrated control to an Express version, optional hardware (even
though installed) may no longer work. Also, when executing this step the control will be factory defaulted to
a PM Express at zone address 1 with input 1 and outputs 1 and 2 remaining as originally configured.
Note:
After switching the model number to a PM Express this document will no longer apply to the control. Click
on the link that follows to acquire the latest version of the PM PID Express User's Guide.
http://www.watlow.com/literature/manuals.cfm
Once there, simply enter express in the "Keyword" field to find the appropriate document.
How to Restore Original PM Model Number
1. Enter Factory Page [FCty], Calibration Menu [`CAL] via front panel or using EZ-ZONE Configurator
Software.
2. Once there, using the green advance button navigate to the Part Number [``Pn] prompt (lower display).
The upper display will show User [User] indicating the control is currently a PM Express.
3. Push the green advance button one more time where the Public Key [Code] prompt will be displayed in
the lower display and the number [4999] in the upper display.
4. Using the up or down arrow keys enter 606 and push the green advance button to execute the change.
Note:
When switching from a PM Express back to the original model number, all original optional hardware will
again be enabled for use (assuming all original hardware is still installed). Also, when executing this step
the control will be factory defaulted back to the original model number (as shown on the side of the control)
at zone address 1. This User's Guide once again applies to this control.
Saving and Restoring User Settings
Recording setup and operations parameter settings for future reference is very important. If you unintention-
ally change these, you will need to program the correct settings back into the controller to return the equip-
ment to operational condition.
After you program the controller and verify proper operation, select User Settings Save [USr;S] (Setup
Page, Global Menu) to save the settings into either of two files ( [set1] or [set2] ) in the control memory.
Note:
Saving the settings overwrites any previously saved collection of settings. Be sure to document all the con-
troller settings.
If the settings in the controller are altered a user can return the controller to one of three settings. If
previously saved, [set1] or [set2] can be restored as well as the factory [fCty ] settings. Navigate to the
Setup Page, Global Menu to find the Restore [USr;r] prompt. A digital input or the Function Key can also be
configured to restore parameters.
Note:
When restoring factory defaults, I/O assemblies for Modbus, DeviceNet, Profibus and Ethernet along with
the zone address will be overwritten when restoring factory defaults.