3.53
IDN77 Linear Position Data Scaling Factor
This parameter defines the scaling factor for all position data in the amplifier, when linear
scaling is selected in IDN76.
{ }
LSB Weight
factor IDN
m
m
onent IDN
=
·
= ·
-
(
)
exp
(
)
77
10
1 10
78
7
Data Length: 2 bytes
Non-Volatile:
No
Data Type:
Unsigned decimal
Write Access:
CP 2
Minimum:
1
Run-Up Check:
Maximum:
100
Cyclic Transfer:
Default:
1
ASCII Param.:
3.54
IDN78 Linear Position Data Scaling Exponent
This parameter defines the scaling exponent for all position data in the amplifier, when lin-
ear scaling in IDN76 is selected. Refer to IDN77.
Data Length: 2 bytes
Non-Volatile:
No
Data Type:
Signed decimal
Write Access:
CP 2
Minimum:
-9
Run-Up Check:
Maximum:
-3
Cyclic Transfer:
Default:
-7
ASCII Param.:
3.55
IDN79 Rotational Position Resolution
This parameter defines the rotational position resolution for all position data in the ampli-
fier. The LSB weight of rotational position data is determined by the following equation:
LSB Weight
IDN
=
°
360
79
If the rotational position resolution is different from the internal resolution of the amplifier
(2
PRBASE
), it is necessary that the modulo format is switched on in IDN76. Only the val-
ues 2
X
can be saved in the non-volatile memory with x= {16, 20, 24, 28}.
By using parameter 121 (Input revolutions of load gear) und 122 (Output revolutions of
load gear) the minimum changes to
min: 100 * (IDN122/IDN121)
and the maximum to
max: 2
28
* (IDN122/IDN121)
Data Length: 4 bytes
Non-Volatile:
Yes
Data Type:
Unsigned decimal
Write Access:
CP2
Minimum:
100
Run-Up Check:
Maximum:
268 435 456 (2
28
)
Cyclic Transfer:
Default:
1048576
ASCII Param.:
log(PRBASE)
Units:
Counts / Revolution
Version:
3.56
IDN80 Torque Setpoint Value
The master issues torque setpoints to the amplifier as cyclic data through IDN80. Torque
setpoints written via the service channel do not take affect.
Data Length: 2 bytes
Non-Volatile:
No
Data Type:
Signed decimal
Write Access:
CP2, CP3, CP4
Minimum:
Run-Up Check:
Maximum:
Cyclic Transfer:
MDT, AT
Default:
ASCII Param.:
ICMD x (1000 / MICONT)
Units:
IDN86
Version:
44
sercos
®
for S300/S700
sercos
®
IDN Set
04/2016
Kollmorgen
