Siemens sinumerik 840D sl Function Manual page 574

Required hardware
All hardware components required are listed below:
• NCU terminal block (6FC5211-0AA00-0AA0)
• DMP output module (6FC5111-0CA05-0AA0) for each analog axis
• Cable for setpoint from DMP output module to analog drive.
• Analog drive amplifier e.g. SIMODRIVE 611A
• Signal generator on motor
• Actual-value cable for direct measuring system (15-pin connector)
• Active SIMODRIVE 611D drive system with unassigned actual-value input for direct
2.3 Configuration
The following description explains how an NC axis can be configured via machine data so
that it can be controlled by means of an analog drive amplifier.
Declare axis as analog axis
Every NC axis can be operated as an analog axis. The maximum number depends on the
number of NC axes.
An NC axis is declared as an analog axis via the following axial machine data.
MD63530 $MA_ANALOG_AXIS
The input value in this case is the modulo number of the DMP module on the NCU terminal
block (input setting can be 1 to 8). The analog axis is deactivated when 0 is input.
Alarms in response to configuring errors
If more than the permissible number of analog axes are activated, then alarm 75100 "Too
many analog axes configured" is displayed after booting.
If the same DMP module is assigned to more than one analog axis, alarm 75101 "DMP
module no. %1 with multiple assignments" is issued.
The DMP modules are not permitted to be used by other control system functions (e.g.
synchronized actions) as this would interfere with the servo output. DMP modules are
assigned by the interpolator via the following global machine data:
MD10310 $MN_FASTIO_ANA_NUM_OUTPUTS
For this reason, the numbers of DMP modules used for analog axes must be higher than the
contents of machine data 10310 or else alarm 75102 "DMP module no.:%1 assigned to
system functions" will be activated.
Special functions: Analog Axis (TE2)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
measuring system (socket connector X422) and submodule for direct measuring system
Detailed description
2.3 Configuration
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