ER5000 —
217
Troubleshooting
Using Profiles to Control the ER5000
Proles are multi-step command sequences for the ER5000. They
require no previous programming experience on the part of the
user to create and guide the ER5000 through everything from a
simple start/stop operation to a sequence of setpoint changes
that can include up to one hundred command lines and control
loops that can run indenitely.
Problems with Proles can generally be attributed to applications
where a Prole includes command segments where the controller
communicates with an external digital device. Troubleshooting
these applications generally involves checking that all wiring is
congured properly and correctly setting the internal variables
which control how the ER5000 interprets digital signals.
Input – If the Profile Stops at a Digital Input Command for
Digital Input 1
1. Check Jumper J14. It must be OFF to use Input 1 as a digital
input. Refer to Checking the Conguration of the Jumpers
earlier in this section.
2. Check variable #77 ( ID_COMPENSATED_EXTRA_AD1).
The value should read higher when the input is activated
(Logical 1) than when not activated (Logical 0).
3. Use one of the extra variables on the plot screen to monitor
Extra Analog Input 1 (77). Follow the steps in To add a variable to
the Plot Screen display.
OR
Use a Read/Write eld in The Read/Write Panel to monitor
77:COMP_EXTRA–AD1.
(continued next page)
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