HEIDENHAIN TNC 407 (243 020) Service Manual User Manual
Page 14
86
31-O
SERVICE MANUAL TNC 4071415
01.09.1995
Page
8
Error Location
Error Cause
Position (Servo Lag) Monitoring
Operation with feed precontrol: position monitoring range ex-
ceeded (range determined in MP
Operation with servo lag: servo lag monitoring range ex-
Monitoring of the Analog Voltage Limit
The nominal voltage calculated by the control has reached its
limit of 10 V
with feed
Movement Monitoring
The voltage difference calculated by the control has reached
the limit programmed in the machine parameter MP 1140.x.
Standstill Monitoring
The deviation from the nominal position of an axis in
standstill has exceeded the value programmed in the
machine parameter MP
Monitoring of the Offset Voltage
The offset voltage limit of 100
has been reached during
an automatic offset adjustment with MP 1220.
CPU number
1 main processor
2 geometry processor
3 CLP processor
When the error message “GROSS POSITIONING ERROR” is displayed, the error may be located in any
element of the closed loop.
e.g.
Error in control
CLP board)
Excessive offset voltage at the servo amplifier
Incorrect speed adjustment at the servo amplifier
Monitoring function of servo amplifier has responded
(e.g. monitoring of current intensity)
Electrical defect at the servo amplifier
Mechanical error (bearing, spindle, guides)
Excessive mechanical forces on a drive