OPERATION 3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS Emergency Indication of Operating Conditions. The ECS system is equipped with an emergency indication. In case the text display (A) fails to work, it indicates faults in impor- tant operating systems of the Shovel. The indication is effected by means of LED’s at the P rogrammable L ogic C ontroller ” PLC installed in the cab base. Refer to page 206 for the location of the PLC The following faults are indicated: 111 Fault: LED No.: The ECS system is by-passed (By-pass switch S27 actuated) H30 Start of engine 1 and/or engine 2 blocked, resp. engine shifted to low idle speed by one or more of the six high pressure filters.
NOTICE The LED ”H31” monitors all six high pressure filters. Refer to page 219 for description of the diagnostic codes flashed out by LED ”H31”. H31 Coolant pressure H33 Coolant temperature H34 Engine oil pressure H36 Start of both engines blocked, resp. engine shut down, due to closed main shut-off (gate) valve hydraulic tank H37 Faulty monitor channel for hydraulic oil temperature H38 Too low hydraulic oil level! Stop the engines H39 Faulty monitor channel engine speed H112 Emergency shut down switch actuated H116 Engine shutdown from ground man (if so equipped) H135