DR. JOHANNES HEIDENWN GmbH
D-8225Traunreut 'Tel.(O8669)
31-O
SERVICE MANUAL TNC 151/155
Page 10
Section 2.2.2
Kundendienst
VDU Display (flashing)
GROSS POSITIONING ERROR B
GROSS POSITIONING ERROR C
GROSS POSITIONING ERROR D
GROSS POSITIONING ERROR E
TNC OPERATING TEMP. EXCEEDED
Fault cause
.The analog output voltage calculated by the
control (implied by trailing error) is greater
than + 10 V
.The analog output voltage required to obtain
a desired speed deviates more from the calcu-
lated voltage than the voltage programmed in
MP 234
.The actual position at standstill deviates
more from the intended position than the
distance programmed in MP 169
Automatic offset adjustment (MP 252)
Offset voltage is greater than 100mV
.Ambient temperature inside the TNC has
exceeded +65'Y
.Fault in the temperature supervision
Possible fault location
see above
see above
see above
Ambient temperature of Control
Analog Board
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