ELCOM Euro-2500 Series, Руководство по обслуживанию

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© Elcom s. r. o. Service manual
Euro 2500
TX
29
3.3 Paper feeding 3.3 Paper feeding
The feeding of paper in POS-4000 is taken care of by twin stepping motors. One feed step will feed 0.125 mm of paper tape.
3.3.1 Stepping motor specification 3.3.1 Stepping motor specification
3.3.2 Excitation sequence 3.3.2 Excitation sequence
3.4 Printer connectors 3.4 Printer connectors
Item Specification
Type PM
Control method Bipolar control
Excitation 2 × 2 phase excitation
Coil resistance per phase 36 Ω ± 10%
Operating voltage 24 V
Current per phase Approx. 107 mA
Tab. 3.2: Stepping motor specification
Input signal Output signal
PH1 PH2 B A B A
Step 1 L H L H H L
Step 2 H H H H L L
Step 3 H L H L L H
Step 4 L L L L H H
Tab. 3.3: Excitation sequence
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Number Function Number of pins
1 Thermal head 16 ELCO
2 Motor connector 4 MOLEX, 53325-41
3 Sensor connector 5 MOLEX, 53325-51
Tab. 3.4: Printer connectors