TM 5-3895-374-24-2
955-257
SECTION 8 - SERVICE
8.1 SERVICE
If you experience difficulty with a controller, first check all wiring. Also pull the electronic assembly forward out of the case
enough to check that all circuit boards and plug-in components are snugly in their connectors.
Check that the correct key sequence has been used and that the setpoints and tuning values set into the controller are
appropriate to the application.
8.2 DIAGNOSTIC DISPLAYS
The controller contains several self-diagnosis programs that will display an appropriate warning when necessary. When
any of these displays appear the control output(s) go OFF and the alarm(s) go ON.
This display indicates that the input is an open circuit and must be corrected before proceeding.
This display will appear if the AC voltage to the controller drops below specification to a low voltage level.
Check the AC voltage level and correct if necessary.
If either of these displays appear, try switching the AC power ON or OFF to the controller. If the
indication stays the same, the controller must be serviced by authorized personnel.
8.3 DATA LOST
These alternating flashing displays indicate that, for some reason, the controller calibration has been lost.
This is an error alarm that prevents the controller from continuing to operate after an error is detected in
the internal memory. When these displays appear, the controller shuts down.
Recalibration is a quick and easy procedure which is fully explained in Section 6. You can recalibrate the controller by
following these instructions or you can return the controller to the factory or authorized distributor for recalibration
ECLIPSE INSTRUMENTATION DIVISION
(page 3 - 1128)
INPUT
OPEN
POWER
FAILURE
RTC
FAILURE
RAM
FAILURE
DATA
LOST
PLEASE
CALL
