Siemens SINUMERIK 840D sl Function Manual page 423

2.3.2 Speed setpoint and actual-value routing
General information
In order to carry out speed setpoint and actual-value routing, the following must be defined
for each axis/spindle:
• Assignment of 1st measuring circuit
• Assignment of 2nd measuring circuit (if present)
• Assignment of setpoint branch
Multiple assignment is also possible, e.g., using a measuring circuit for position actual-value
acquisition for the alternating control of several axes/spindles.
Note
When a SIMODRIVE 611 universal is operated via the PROFIBUS DP, various machine
data that need to be parameterized for digital and analog drives are not assigned.
Prerequisite for routing
All NC machine axes must be uniquely defined in machine data:
MD10000 $MN_AXCONF_MACHAX_NAME_TAB[n] (machine axis name).
This name must be unique throughout the system (all mode groups and channels).
References:
/FB1/ Function Manual, Basic Functions;
Axes, Coordinate Systems, Frames (K2)/
Mode Group, Channel, Program Operation, Reset Behavior (K1)
Speed setpoint routing
For speed setpoint routing, the following setpoint assignments for parameterizing the
relevant machine data must be made:
Setpoint assignment
Drive type:
Drive number/module number:
Output on drive module/module:
Output type of setpoint:
Setpoint output is unipolar
(only active in conjunction with PROFIBUS DP)
Basic logic functions: Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.3 Setpoint /actual-value system
Number
Of the bus segment
Of the module within the bus segment
Of the setpoint output
Type of speed setpoint output
Polarity of the output driver for speed setpoint
output
Detailed description
35