Idn45 Velocity Data Scaling Factor; Idn46 Velocity Data Scaling Exponent; Idn47 Position Setpoint Value - Kollmorgen Sercos II Translation Of The Original Manual

®
sercos IDN Set
3.39

IDN45 Velocity Data Scaling Factor

The scaling factor for all velocity data in the amplifier. The exponent is defined with
IDN46, so that the LSB weight of all rotational velocity data is derived from the following
equation:
LSB Weight
The scaling may be defined within the following range: 1x10
IDN46 must be integers. If the preferred rotational scaling is selected in IDN44, the veloc-
ity scaling factor (IDN45) and the velocity data scaling exponent (IDN46) will be fixed at
their default values (refer to IDN44). With velocity scaling it is possible to get a rounding
error in the LSBits.
Data Length: 2 bytes
Data Type:
Minimum:
Maximum:
Default:
3.40

IDN46 Velocity Data Scaling Exponent

The scaling exponent for all velocity data in the amplifier. Refer to IDN45.
IDN46 = -6 reduces the max. permitted speed to approx. +/-2300rpm (counter over-
flow).
Data Length: 2 bytes
Data Type:
Minimum:
Maximum:
Default:
3.41

IDN47 Position Setpoint Value

The master issues position setpoints to the amplifier as cyclic data through IDN47. Posi-
tion setpoints written via the service channel do not have any affect. The "Position
Setpoint Value" has a defined scaling type (IDN76) and a defined resolution (IDN76, 77,
78, 79, 123).
Data Length: 4 bytes
Data Type:
Minimum:
Maximum:
Default:
Units:
38
04/2016
exp onent IDN
= ·
factor IDN ( 45 ) 10
Unsigned decimal
1
-(IDN46)
10
1
Signed decimal
-6
0
-4
Signed decimal
IDN76, 77, 78, 79, 123
ì
unit revo ( lutions
( 46 )
í
î time unit (min utes
-5
to 1x100. IDN45 and
Non-Volatile:
Write Access:
Run-Up Check:
Cyclic Transfer:
ASCII Param.:
Non-Volatile:
Write Access:
Run-Up Check:
Cyclic Transfer:
ASCII Param.:
Non-Volatile:
Write Access:
Run-Up Check:
Cyclic Transfer:
ASCII Param.:
Version:
sercos
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CP2, CP3
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CP4
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for S300/S700