Siemens Sinumerik 840C Diagnostics Manual page 256

5 Parameterization Errors Spindle/Axis
Service
number
319 Illegal maximum speed
(scaling overrun)
320 (reserved)
321 Feedforward control parameterization incorrect
322 Incorrect clock cycle setting
323 Illegal position control resolution
324 Incorrect C axis assignment:
(axis does not exist)
no spindle encoder available
Position control sampling time for C axis ≠ posi-
325
tion control sampling time for spindle
326 Incorrect measuring gear
327 Measuring systems 1 and 2 of an axis are assi-
gned to one distance-coded linear scale or an
absolute encoder has also been defined.
SW5 and higher: An EnDat absolute encoder
without zero marker has been defined.
328 On reparameterization of the machine data of
the QEC, invalid values have been found. Pos-
sible causes are:
S
The characteristic of the conventional QEC
has been incorrectly parameterized.
– The MD 1244* must be less than
MD 1248*.
– The MD 1248* must be less than 100 x
MD 1252*.
– Internal formats have been exceeded with
the characteristic parameterization.
S
In the neural QEC, the following errors have
been found.
– The learning rate MD 1368* must not be 0.
– The measuring time MD 1376* must not be
0.
– The neural QEC has been activated
(MD 1812*, bit 0 = 1) although there is no
valid parameterization of the function para-
meters. This can also occur at POWER ON
if the person responsible for installation and
start-up has forgotten to save to a boot file.
1) or position control resolution (spindle) = position control resolution (axis)
2) or mode group (spindle) = mode group (axis)
5–2
Significance
1)
2)

Siemens AG 2001 All rights reserved 6FC5198–jAB40
Remedy
General Axis
MD 264*
256*
268*
260*
1736*
MD 312*
1124*
1260*
MD 168*
MD 1800* MD
MD 200*
MD 1396* MD
MD 364*
368*
1208*
1212*
MD 1808*
Bit 4
Bit 5
MD 1244*
1248*
1252*
1368*
1376*
1812*
SINUMERIK 840C / SIMODRIVE 611–D (DA)
04/96
07/97
Spindle
MD 403*
to 410*
MD 419*
to 426*
468*
2522*
MD 465*
524*
MD 400*
461*
520*
466*
MD 455*
456*
524*
MD 1368*
1376*
1812*
Bit 0