09.2008 Functions
Siemens AG 6SE7087-6QX70 (Version AK)
SIMOVERT MASTERDRIVES Compendium Motion Control 7-13
A
B
V
t
Fig. 7-2 Moving from A to B
Standard applications are available including parameter assignment
and documentation. These can be obtained from your regional
SIEMENS AG office and are available from the Application Center for
Production Machines.
What the basic positioner offers:
Positioning POS (absolute/relative) of linear and circular axes with
motor encoder or machine encoder
♦ SETUP (stepless)
♦ Homing REF (homing movement/homing on the fly)
♦ Software limit switch SWE (for linear axis, connector inputs from
V2.3)
♦ Stop cam (from V2.3)
♦ Static STOP cam (from V2.4)
♦ Backlash compensation (with preferred position)
♦ Exact positioning window (POS_OK window + delay time)
♦ Window evaluation for post-homing
♦ Rate-of-change limitation (adaptable)
♦ Continuous or triggered setpoint transfer
♦ Mode change on the fly (REF, POS, SETUP)
♦ Setpoint change on the fly possible using PZD
Advantages of basic positioner:
♦ Cost neutral (with basic unit functionality)
♦ Easy to understand (basic commissioning)
♦ Continuous setpoint evaluation (during constant transfer)
♦ Control/checkback interface using BICO technology (e.g. PLC
connection)
♦ Mode change on the fly (REF, POS, SETUP)
♦ Lower calculation time loading
♦ Lower project engineering costs
♦ Greater freedom for applications
♦ SIMATIC S7 not absolutely necessary
NOTE
Characteristics
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