Service Manual TNC 407 / TNC 415 - heidenhain - DR. JOHANNES ...
Service Manual TNC 407 / TNC 415 - heidenhain - DR. JOHANNES ...
Service Manual TNC 407 / TNC 415 - heidenhain - DR. JOHANNES ...
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Kundendienst<br />
HEIDENHAIN<br />
<strong>DR</strong> <strong>JOHANNES</strong> HEIDENHAW! Gmb”<br />
D-i3292 Traunreut ‘78 (08669) 31-O<br />
10. Visual Display Unit BC I 1 O/l IOB<br />
IO. 1 Overview<br />
SERVICE MANUAL <strong>TNC</strong> <strong>407</strong>/<strong>415</strong><br />
Issue: 01.09.1995<br />
Page 48<br />
BC 110 Id. No. 254 740 01 BC 1106 Id.No. 260 520 01<br />
10.2. Checking the Visual Display Unit<br />
BCIIOB Id.No. 260 520 01<br />
If the screen remains dark when the machine is switched on , first check the power supply (line voltage) of the<br />
VDU. If the voltage supply is functioning properly, a square highlighted field can be generated on the screen of<br />
the VDU (which must be switched on) by pressing the external test button on the back side of the unit.<br />
Highlighted field<br />
External test button<br />
If the VDU generates this highlighted field, the PLC graphics board in the logic unit is probably defective.<br />
If however, the VDU remains dark after the test button was pressed, the VDU is defective and must be<br />
exchanged.<br />
0<br />
0<br />
@$<br />
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