Siemens Sinumerik 840DiE sl - Page 349

01/2007
11.5 Axes and spindles
11-349
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) -- 01/2007 Edition
S MD36130: POS_LIMIT_PLUS2 (2nd software limit switch plus)
S IS: DB31,... DBX12.2 (2nd software limit switch minus)
S IS: DB31,... DBX12.3 (2nd software limit switch plus)
S Interrupt: ”10620 Axis reaching software limit switch +/--”
S Interrupt: ”10621 Axis is at software limit switch +/-- (JOG)”
S Interrupt: ”10720 Progr. end point is behind software limit switch +/--”
Notice
All position monitoring functions are only active with valid reference point of the
corresponding reference point of the machine axis.
If the PLC signals that a hardware limit switch has been reached, the machine
axis is stopped with the parameterized brake response.
S IS: DB31, ... DBX12.1 (Hardware limit switch plus)
S IS: DB31, ... DBX12.0 (Hardware limit switch minus)
S MD36600: BRAKE_MODE_CHOICE (brake response at the hardware limit
switches)
0 = brake c haracteristic is observed
1 = rapid deceleration with setpoint ”0”
S Interrupt: ”21614 hardware limit switch [+/--]”
2nd software
limit switch
plus
(activated in PLC)
1st
software
limit switch
plus
Hardware
limit switch
plus
Mechanical
traversing end
plus
EMERGENCY STOP
Working
area
limitation
plus
Fig. 11-19 Overview of end limitations
The dynamic monitoring functions with reference to a machine axis are:
The speed setpoint monitoring prevents that the max. admissible motor speed
is exceeded.
It must be set such that the max. velocity (rapid traverse) can be reached and,
in addition, a certain control margin remains.
Hardware
limit switch
Dynamic
monitoring
functions
Speed setpoint
monitoring
11
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CK Comm
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