Epos And Safe Setpoint Velocity Limitation - Siemens SINAMICS S120 Function Manual

Function modules
7.8 Basic positioner
Function diagrams (see SINAMICS S120/S150 List Manual)
• 3630 EPOS - Traversing range limits (r0108.4 = 1)
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• p2571
• p2572
• p2573
• p2646
Software limit switch
• p2578
• p2579
• p2580
• p2581
• p2582
• r2683.0...14
STOP cam
• p2568
• p2569
• p2570
• r2683.0...14
Jerk limitation
• p2574
• p2575
7.8.3

EPOS and safe setpoint velocity limitation

If safe speed monitoring (SLS) or the safe direction motion monitoring (SDI) is also to be
used at the same time as the EPOS positioning function, EPOS must be informed about the
activated monitoring limits. Otherwise these speed monitoring limits can be violated by the
EPOS setpoint input. By monitoring the limit value, if violated, the drive is stopped therefore
exiting the intended motion sequence. In this case, the relevant safety faults are output first,
and then the sequential faults created by EPOS.
Using parameter r9733, the safety functions offer EPOS setpoint limiting values, which when
taken into account, prevent the safety limit value being violated.
458
EPOS maximum speed
EPOS maximum acceleration
EPOS maximum delay
CI: EPOS velocity override
CI: EPOS software limit switch, minus signal source
CI: EPOS software limit switch, plus signal source
CO: EPOS software limit switch, minus
CO: EPOS software limit switch, plus
BI: EPOS software limit switch activation
CO/BO: EPOS status word 1
BI: EPOS STOP cam activation
BI: EPOS STOP cam, minus
BI: EPOS STOP cam, plus
CO/BO: EPOS status word 2
EPOS jerk limitation
BI: EPOS jerk limitation activation
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions