840Di-specific data and functions
18.3 Travel to fixed stop with high-resolution torque reduction
Manual
606
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
18.3.4
Parameter assignment: SIMODRIVE
The following SIMODRIVE drives support high-resolution torque reduction:
●
SIMODRIVE 611 universal, universal E
●
SIMODRIVE POSMO SI, CD, CA
Message frame
The drive must be operated with one of the following message frames:
●
Message frame 102 to 107
Drive parameters
The evaluation of torque reduction is set using the parameter:
●
P0881 Torque reduction evaluation [%]
Normalization: 1% ≙ 16384
D
= 4000
H
18.3.5
Parameter assignment: External drives
If third-party drives are used, please read the manufacturer's documentation to see whether
and how to set the parameters on the drive.
18.3.6
Parameter assignment: SINUMERIK 840Di sl NC
In the SINUMERIK 840Di sl NC system, the parameters for evaluating torque reduction are
assigned via the axis-specific machine data:
●
MD37620 $MA_PROFIBUS_TORQUE_RED_RESOL
Automatic adjustment
During automatic adjustment, the NC attempts to read the drive parameters in the following
system states:
●
SINUMERIK 840Di sl boot
●
State: "Incoming station" of the DP slave drive
If the value set for the drive does not match the parameter assigned in the NC evaluation,
the value defined by the drive is applied to the NC machine data. The resulting
renormalization of the machine axis in question is shown by the following message:
●
Alarm 26024 "Axis
axis identifier machine data
$MA_PROFIBUS_TORQUE_RED_RESOL value adapted".
If the value of the drive parameter converted into NC format lies outside the machine data
limit values, the value set in the machine data is retained. No message is displayed.
