Chapter 8 System Options Alpha Compact 32708612
Version: 14.12.2012 page 93 of 135
Detailed information on application rate
Fig. 7-6 Label Feed
No. Description
1
START RAMP
2
LABEL FEED SPEED
3
STOP RAMP
4
AVERAGE SPEED
Acceleration (start ramp) and delay (stop ramp) of label feed speed are generally linear.
The average speed results from acceleration, period of feed and delay. Let`s assume that
a 500 mm long label with a gap of 3 mm should be applied at a feed speed of 64 m/min, it
corresponds to an average of 45m/min (because the ramps take a formidable part of the
label`s total length).
The start-/stop-ramps can be adjusted in 4 stages by the parameter 04 LABEL OPTIONS
(LABEL OPTIONS).
At really smoothly adjusted acceleration (start ramp) and delay (stop ramp), the ad-
justed feed speed cannot be achieved, particularly with short labels.
If a shaft encoder should be used, the parameter 04 LABEL OPTIONS (LABEL OP-
TIONS) has to be adjusted to +64.
Tables on acceleration ramps for 2 power supply version:
Clock rates of the 3 power supply version can be taken from the performance calculator.
2G 3G 4G 5G
m/min mm ms² mm ms² mm ms² mm ms²
10 0,8 7 0,6 5 0,5 3 0,3 2
20 2,9 15 2,0 10 1,5 7 1,2 6
30 6,6 24 4,4 15 3,2 11 2,6 9
40 11,6 32 7,7 212 5,8 15 4,6 12
50 18,2 41 12,1 27 8,9 19 7,2 15
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