© Ernst Nagel GmbH 2S Trimmer Service Manual en.doc Rev.1.0. 20.07.2011
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Contents
8. NVM Values
(continued)
8.2 Adjusting NVM Values
(continued)
8.2.1 NVM Booklet width correction
When switch ON the STR the Knife Blocks will move to the centre of the machine until the mechanical limit
switch (S1) is activated. Than the Knife Blocks will move out of each other, release the switch. At this point
the distance between the Lower Knifes x10 should be conform the NVM No. 1 Motor 6 Home Position. After
that the Knife Blocks will move further to the adjusted Finished Size.
It can occur that the booklet width is not conform the Finished Size on the UI display. Therefore the Booklet
width, also called Finished Size, needs to be changed. By adjusting the NVM No. 1 Motor 6 Home Position
the distance between the Lower Knives can be in -or decreased.
Before making adjustments to the STR, make sure that the fault is not within the previous machine.
Use the Service Manual of the previous machine to perform a Paper Size Check.
1.Make an A3 booklet with Side Trim, measure the booklet Finished Size and compare with Finished Size
on UI-display.
Is the booklet Finished Size the same Finished (Trim) Size shown on the UI display?
Y N
Insert the measured Finished Size in the following formula:
“new wished NVM No. 1 Home Position” = (“current NVM No. 1 Home Po
(“current Finished Size on UI display” - “measured Finished Size”) x 10)
.
When A needs to be increased, fill in the formula and higher the NVM according to the result.
When B needs to be decreased, fill in the formula and lower the NVM according to the result.
Change the current NVM No. 1 Motor 6 Home Position in the “new wished NVM No. 1 Motor 6
Home Position.
Proceed back to step 1.
Proceed to chapter 8.3.2
A
B
Fig. 8.11