Input/Output Signals of the AML-LIID System (GT-250C-1) Names and functions of signals input to/output from CN3 connector are shown below: CN 3 connector Pin No.
2
Name
TR2
Signal names and functions Signal name: 90% alarm output When the moment load factor is 90% or more and less than 100%, the OC (open collector) output turns ON. OC output ON (DC 0 V): The external indicator lamp indicating 90% lights. OC output OFF (DC 24 V): The external indicator lamp indicating 90% goes out. While the boom lift is performed with the jib mounted, the OC output turns ON when the moment load factor is 75% or more and less than 85%. Signal name: 100% alarm output When the moment load factor is 100% or more, or when the overload and overwound automatic stop function is canceled, the OC (open collector) output turns ON. OC output ON (DC 0 V): The external indicator lamp indicating 100% lights. OC output OFF (DC 24 V): The external indicator lamp indicating 100% goes out.
3
TR3
Signal name: 100% alarm output When the moment load factor is 100% or more, or when the overload and overwound automatic stop function is canceled, the OC (open collector) output turns ON. OC output ON (DC 0 V): The external indicator lamp indicating 100% lights. OC output OFF (DC 24 V): The external indicator lamp indicating 100% goes out. Conditions under which the OC output turns ON Moment load factor ≥ 100% Overwind cutout release switch: "Press" AML emergency switch: "非常用" While the boom lift is performed with the jib mounted (extended), the OC output turns ON when the moment load factor becomes as follows: Moment load factor ≥ 85% Also, under the condition below, the AML judges that the jib is mounted (extended). When Di8 input signal is "DC 24 V"
4
22
TR4
With GT-250C-1 Signal name: Front jack overload warning output OC (open collector) output ON (DC 0 V): When the front jack overload detection switch is "ON," the buzzer sounds. OC (open collector) output OFF (DC 24 V): When the front jack overload detection switch is "OFF," the buzzer does not sound.
Di22
Signal name: Front jack/outrigger retracting operation input Input from the outrigger retraction switch Switch ON (DC 0 V): Outrigger retracting operation Switch OFF (DC 5 V): Not outrigger retracting operation
20
W301-0251E
