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Siemens AG 2001 All rights reserved 6FC5198–jAB40
1–82
SINUMERIK 840C / SIMODRIVE 611–D (DA)
2003* Zero speed monitoring Reset key
S When accelerating
S When at zero speed
S When clamped
S When decelerating (delay)
S Interlock of NC START
S Interlock of Mode Group Ready
S Setpoint 0
S Servo enable is removed on expiry of the time in NC–MD “Cutoff delay servo enable”
S Follow-up mode
S When positioning, the following error could not be eliminated faster than the time given in NC–MD “Cutoff delay
servo enable”.
S When clamped, the limit defined in the NC–MD “Zero speed monitoring” has been exceeded.
S Mechanically clamped spindle has been pushed out of position.
S Error on the activating device, on the tacho, on the motor, in the mechanical construction, in the CNC measu-
ring circuit hardware or on/in the encoder.
S Wrong setpoint output assignment specified
S When starting up: wrong sense of position control
S NC–MD “Zero speed monitoring” must be greater than NC–MD “Exact stop limit coarse”.
S NC–MD “Cutoff delay servo enable” must be great enough for the following error to be eliminated within this
time (applies only when NC–MD “Delay zero speed monitoring” = 0).
S NC–MD “Delay zero speed monitoring” must be great enough for the following error of the various spindles to
be eliminated within the time entered.
S Check actual values (encoder) and sense of position control.
2007* There is no measuring circuit POWER ON
S On POWER ON
S Spindle is not processed
S Servo disable of spindle concerned
S Removal of Mode Group Ready
S Interlocking of NC START
S Interlocking of NC RDY relay
S MD 400* and/or MD 460* indicates an empty submodule slot on a measuring circuit module with submodules.
Example: MD 460* = 01090000, the first measuring circuit module is an HMS module with empty submodule
slot 2.
S Measuring circuit module has been removed or is defective.
S Compare MD 400* and/or MD 460* with the hardware configuration and correct.
2008* Closed-loop hardware spindle POWER ON
Cyclic
S Interlocking of NC START
S Setpoint relay drops out, setpoint 0
S Removal of Mode Group Ready
S Spindle servo enable is removed after the time in MD “Delay for servo enable” has elapsed.
The measuring circuit difference signals
S are not in phase
S have a short circuit to groand
S are absent
S Check wether the measuring circuit connector has been inserted
S The measuring circuit short circuit connector can be slotted in to check whether the measuring circuit module
is functioning correctly.
S Check the difference signals with the oscilloscope
S Replace the encoder/cable
Scan
Effect
Explanation
Remedy
Scan
Effect
Explanation
Remedy
Scan
Effect
Explanation
Remedy
1 Alarms
1.5.1 Alarm description
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