Siemens SINUMERIK 840C Installation Instructions Manual page 540

07.97
Relation between control word (MD 11004) and control word (MD 11002).
MD 1500
Type of 1st filter
Control word
MD 11004, bit 11
Control word
MD 11004, bit 11
• The 1st speed setpoint filter can be switched on/off via the control word (MD 11004, bit
11) only, if it is parameterized as low-pass (MD 1501, bit 0=0). It is not possible, if it has
been parameterized as band-stop (MD 1501, bit 0=1).
• The status word (MD 11002, bit 11) indicates the active/inactive state of the 1st speed
setpoint filter only, if the filter is parameterized and selected as low-pass and is active
(MD 1550>0, MD 1501, bit 0=0).
1501
Input of configuration of 2 speed setpoint filters. A selection of band-stop and low-pass filters
(PT2/PT1) are available. The adjustable filter parameters are entered in the appropriate
machine data.
Applications:
• The set speed filter type "band-stop filter" is used to dampen axis-specific resonant
frequencies in the position control loop.
Depending on the requirement, the function "band-stop filter" can be set in three
configurations:
-
-
-
• Interpolation with speed setpoint stairs - the speed setpoints are output in the position
controller cycle which can be set to a much greater value than the speed controller cycle
(low-pass).
Low-pass/band-stop
PT2/PT1 with low-
* Band-stop cannot be deactivated via control word
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SINUMERIK 840C (IA)
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Status MD 1500 > 0
-
(MD 1501.0 = 0)
1
MD 11002, bit 11 = 1
0
MD 11002, bit 11 = 0
Default value Lower input limit
0000 0000
Simple band-stop filter, MD 1514/MD 1517 and MD 1515/MD 1518
Band-stop filter with settable damping of the amplitude response, other relevant
machine data MD 1516/MD 1519
Band-stop filter with settable damping of the amplitude response and raising or
lowering of the amplitude response after the blocking frequency, other relevant
machine data MD 1520/MD 1521.
1st filter Bit 0
2nd filter Bit 1
1st filter Bit 8
pass
2nd filter Bit 9
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7 Drive Machine Data (SIMODRIVE Drive MD)
MD 1500 > 0
Low-pass Band-stop
(MD 1501.0 = 1)
Status word Status word
MD 11002, bit 11 = 1
Status word Status word*
MD 11002, bit 11 = 1
Type speed setpoint filter
Upper input limit
0303
0 Low-pass (see MD 1502/1506/1507)
1 Band-stop (see MD 1514/1515/1516/1520)
0 Low-pass (see MD 1502/1508/1509)
1 Band-stop (see MD 1517/1518/1519/1521)
0 PT2 low-pass (see MD 1506/1507)
1 PT1 low-pass (see MD 1502)
0 PT2 low-pass (see MD 1508/1509)
1 PT1 low-pass (see MD 1503)
6FC5197- AA50
7.3.2 Drive MD (data description)
MD 1500=0
Inactive
(MD 1501.0 = 0 or 1)
Status word
MD 11002, bit 11 = 1
Status word
MD 11002, bit 11 = 1
Active
at once
Units
Hex
7–125