Curtis 1239E - 12: Maintenance; Cleaning; Fault History

Return to TOC Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
12 — MAINTENANCE
pg. 149
12 — MAINTENANCE
There are no user serviceable parts in the Curtis controller. No attempt should be made to open,
repair, or otherwise modify the controller. Doing so may damage the controller and will void
the warranty.
It is recommended that the controller and connections be kept clean and dry and that the controller’s
fault history le be checked and cleared periodically.
CLEANING
Periodically cleaning the controller exterior will help protect it against corrosion and possible
electrical control problems created by dirt, grime, and chemicals that are part of the operating
environment and that normally exist in battery powered systems.
When working around any battery powered system, proper safety precautions should be taken.
These include, but are not limited to: proper training, wearing eye protection, and avoiding loose
clothing and jewelry.
Use the following cleaning procedure for routine maintenance. Never use a high pressure washer to
clean the controller.
1. Remove power by disconnecting the battery.
2. Discharge the capacitors in the controller by connecting a load (such as a contactor coil) across
the controller’s B+ and B− terminals.
3. Remove any dirt or corrosion from the power and signal connector areas. e controller should
be wiped clean with a moist rag. Dry it before reconnecting the battery.
4. Make sure the connections are tight. Refer to Chapter 2 for maximum tightening torque
specications for the battery and motor connections.
FAULT HISTORY
e 1313 handheld or 1314 PC programmer can be used to access the controller’s fault history le.
e programmer will read out all the faults the controller has experienced since the last time the fault
history le was cleared. Faults such as contactor faults may be the result of loose wires; contactor
wiring should be carefully checked. Faults such as overtemperature may be caused by operator habits
or by overloading.
Aer a problem has been diagnosed and corrected, it is a good idea to clear the fault history le. is
allows the controller to accumulate a new le of faults. By checking the new fault history le at a later
date, a technician can readily determine whether the problem was indeed xed.
CAUTION