Mec 45-J Diesel, Руководство по обслуживанию и запасным частям

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Page 52 45-J Desel - Servce & Parts Manual
January 2022 Secton 16 - Control System
GP400 Calibration
ART_4891
P1 P2 P3 P4 P5 P6 P7 P8
P9 P10 P11 P12 P13 P14 P15
1
4
1
4
1 3 1 3
1
4
1
4
1
4
1
4
7 1
4 1
4
1
4
1
4 7
10
13
1
4
7
10
1
4
7
10
13
1
4
7
10
13
GP440 Module
Upper Controls
Box
GP440
Module
EZ-Cal Port
EZ-Cal port on
bottom, facing down
The GP400 Module relies on angle sensors to monitor platform elevation at all times. These sensors
send voltages signals to the GP400 that relate directly to their respective angle. The calibration
process is the means by which the GP400 equates these voltage signals to actual platform elevation.
Example:An Angle Transducer, used to montor platform elevaton, has a varable output between
1������00 and 4������00 Vdc as the Jb Boom / Platform rotates through 140 degrees������ Durng
calbraton, the GP400 calculates that 1������80 Vdc s the fully lowered condton, and 3������60 Vdc
s the fully lfted condton������ Therefore, any voltage between these two extremes relates to a
poston between 0 - 140 degrees������
All machines are calibrated at the factory and should not require calibration unless the GP400 is
replaced or displays a code that alerts to the need to recalibrate.
If a calibration procedure is performed incorrectly or if there is a failure in one of the monitored circuits
during the calibration, the GP400 will not allow the operator to continue with the calibration process.
An error message will display on the EZ-Cal indicating the reason for the interruption.
Additional details of these error messages can be found at the end of the calibration instructions.