Technology Option F01
08.2012
6SE7087-6QX70 (Version AN) Siemens AG
9-62
Compendium Motion Control
SIMOVERT MASTERDRIVES
9.4.18
Digital I/Os for positioning [813]
U536 and MD45/MD46 allow you to use any binectors of the
MASTERDRIVES MC for special positioning control functions. The
digital inputs of the converter terminal strip X101 or the terminal
expansion boards EB1/EB2 can be selected as binectors. You can also
connect binectors, which are generated by logic circuits using the free
blocks [765...780], to this point.
MD47/MD48 can be used to assign special positioning status functions
to binectors B311...B316. These binectors can be wired in any
configuration using BICO technology, e.g. to PROFIBUS-DP or to
digital outputs on the converter terminal strip or the terminal expansion
boards EB1/EB2.
You will find detailed information on the digital I/Os for positioning
under MD45 to MD47 in the "Machine data" chapter of manual
/1/. Please note that this documentation is based on a special
digital I/O assignment for positioning with converter terminal strip
X101, however this configuration is not a mandatory requirement
for general applications.
9.4.19
Evaluation and control of the position sensing system, simulation
mode [815]
Sheet [815] depicts the interconnection of the technology with the
position sensing system for the motor encoder [330] and the external
machine encoder [335].
The upper section details the measured values and status signals that
the technology requires from the position sensing system. The lower
section shows the control signals and set/offset values transmitted from
the technology to the position sensing system.
Each section has 2 columns specifying the parameters required for the
connection between the technology and the position sensing system for
the motor encoder or external machine encoder. With the factory
setting, the connection to the motor encoder is mostly intact, and so
only a small number of parameters needs to be modified in this case.
The parameter settings are listed in "Connection and parameters of the
position sensing system" in the section entitled "Commissioning the
technology".
General information on simulation mode
During simulation mode, the position actual-value is simulated by the
position encoder, i.e. all the functions of the axis, including setpoint
output (at parameters n540.01, n540.10 and n540.37 [817]), automatic
mode and the M functions can be tested without a position encoder and
drive. Even if a motor is connected up, no axis movement takes place.
This is achieved by setting the position setpoint KK310 to the current
position actual-value and by setting the speed and acceleration
precontrol KK312 and KK312 to "0" [817].
Digital I/Os for
positioning
Digital outputs for
positioning
Position sensing
Simulation mode
