SIMODRIVE alarms
11/2006 Overview of Alarms
2-741
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
300752 Axis %1 drive %2 blocking frequency of setpoint current filter too high
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The blocking frequency of a current setpoint filter is greater than the reciprocal value of 2 current
controller cycles (violation of the sampling theorem). (1/2*MD 1000*31.25 microsec)
Reaction: NC not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: The value of machine data MD 1210: $MD_CURRENT_FILTER_1_SUPPR_FREQ (blocking
frequency of current setpoint filter 1) or MD 1213: $MD_CURRENT_FILTER_2_SUPPR_FREQ
(blocking frequency of current setpoint filter 2) or MD 1216:
$MD_CURRENT_FILTER_3_SUPPR_FREQ (blocking frequency of current setpoint filter 3) or MD
1219: $MD_CURRENT_FILTER_4_SUPPR_FREQ (blocking frequency of current setpoint filter 4)
must be less than the reciprocal value of two current controller cycles MD 1000:
$MD_CURRCTRL_CYCLE_TIME (current controller cycle). (1/2*MD 1000*31.25 microsec)
Program
Continuation:
Clear alarm with the RESET key in all channels. Restart part program.
300753 Axis %1 drive %2 rotor position identification current less than minimal
value
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The current set in MD1019: $MD_CURRENT_ROTORPOS_IDENT (rotor position identification
current) that is smaller than the minimum value permissible for the motor.
Reaction: NC not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: The current set in MD1019: $MD_CURRENT_ROTORPOS_IDENT (rotor position identification
current) that is not smaller the permissible minimum value (40% for non-Siemens synchronous linear
motor (SLM)).
Possibly, a larger power section must be used.
If allowed with the motor used, hide the error by setting bit 5 in MD 1012: $MD_FUNCTION_SWITCH
(function switch).
Caution: Motors with a low saturation response (e.g. 1FN3 linear motors) might react to very low
identification currents with misorientation. This can lead to uncontrolled movements.
Program
Continuation:
Clear alarm with the RESET key in all channels. Restart part program.
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