Controls and Indicators
3-13
3.11
The H and the L in the digital display flash faster (2X) than the
normal high and low alarm indications to show that the high-high or
low-low limits have been exceeded.
Error Indications
If the controller detects a fault during continuous automatic
self-testing, Err n, or a flashing E appears in the left character
position of the digital display. When this happens the user can press
the PROG button to display the error code. Refer to Fault Codes,
Appendix A.
If more than one error code occurs, each code may be called up in
turn by pressing the setpoint/configuration increase/decrease but-
tons while in the Programming mode.
There are two ways of exiting the error indication mode:
1. Pressing the PROG button once more puts the controller in the
configuration mode. The error codes remain stored in the controller
and may be examined again, if necessary. Pressing the PROG
button a third time takes the controller out of the configuration mode
and returns the displays to their normal states.
2. Pressing the TUNE button also switches the controller to the con-
figuration mode, but erases the error codes. Pressing the PROG
button again returns the controller to the normal display.
Error codes lower than 101 indicate fatal errors which seriously ef-
fect the controller function
May 1991
UM6. i:DPR900:9102
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