55M4500CCE00 REV A
Absolute zero:
This is used to set the zero datum point when an absolute encoder or
single turn, twin wiper potentiometer is fitted as the slew sensor. To set the zero
datum:
Rotate the machine to the zero datum point, normally centred over the front of the
machine, and press
“
”
to set the slew angle reading to zero and permanently store
this point.
If the encoder is a multi‐turn type then set the ratio first before setting this zero point
(see below).
Encoder type:
This will be factory set and should not be changed. It represents the type
and manufacturer of the encoder that is fitted.
Ratio:
This value will only be available if a multi‐turn encoder is specified above and
represents the number of turns that the encoder rotates for a single 360° rotation of the
crane. To set this ratio:
1)
Position the crane at an identifiable slew position and check that it will be safe to
rotate the machine for a full circle.
2)
Select
“ratio”
and press
“
”
. When ready to start the recording process press
“
”
again and rotate the machine 360° and return to the exact start point.
3)
When satisfied that the machine is exactly one turn from the start, press
“
”
to
confirm the position and press
“save”
to store it to memory.
4)
Press
“
”
to return to the main calibration menu.
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