Functional Software description
14 DCS 500 Software Description
Messages, which may come up, if a SDCS-CON2 and DRIVE
_MODE = 3 [ARM. AUTOTUNING] autotuning of armature cur-
rent controller is used:
49 = IF AT START ? Field current does not reach reference
within 10s, when the selftuning is
started
50 = OHMIC LOAD Ohmic load not determined
51 = IACT FEEDBACK Current feedback is less than current
reference during measurement of ar-
mature resistance. Current limits are
lower than the limit for continous cur-
rent flow or lower than 20%.
52 = CURRENT CURVE Bad current curve. Fuse
blown,thyristor not firing or no motor
load.
53 = RUN COMMAND ? Wrong starting conditions. The drive is
running when the autotuning is started
or run command is not given within 20
s after start of autotuning.
54 = TOO HIGH SPEED Too high speed during autotuning
.Speed greater than 1% or EMF grea-
ter than 15%.
55 = INDUCTANCE Inductance cannot be determined. Fu-
se blown, thyristor not firing or no
motor load.
56 = CONT CURR LIM Limit for continous current flow cannot
be determined.
57 = FIELD REMOVAL The field removal takes longer time
than 10 s.
58 = STOP COMMAND Current regulator blocking or stop
command appears during autotuning.
Messages, which may come up, if a SDCS-CON2 and DRIVE
_MODE = 5 [FEX2/3 AUTOTUN] autotuning of field current
controller with FEX2 or DCF 503/4 is used:
60 = CANNOT AUTOTUNE The field current controller cannot be
set by this function
61 = ILL START COND Illegal start condition for field autotu-
ning
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