Siemens SINUMERIK 840D Description Of Functions page 277

11.03
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Step 2 Enter the monitoring clock cycle
Monitoring cycle
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Step 3 Set the monitoring function for all of the axes to be safely monitored.
Set axis monitoring
Enter the following in the specified sequence in the "axis-specific machine data"
display
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Recommendation:
The software switches should be set closer together while the system is being
commissioned.
Step 4 Assign measuring circuits and actual values to axes/spindles
Actual value and
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measuring circuit
assignment
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Basic "start-up" display: Set the password (at least machine manufacturer
password) by selecting softkeys PASSWORD\SET PASSWORD
"General machine data" display:
Enter the number of axes for which safety monitoring functions need to be
activated in the option machine data.
"General machine data" display:
Enter the factor for the monitoring clock cycle in data
$MN_SAFETY_SYSCLOCK_TIME_RATIO (refer to Chapter 2, "Safety
monitoring cycle and crosswise comparison cycle").
The actual monitoring time is immediately displayed in data
$MN_INFO_SAFETY_CYCLE_TIME.
Note
Before you perform an NCK RESET, you must copy the current monitoring
clock cycle to machine data $MD_SAFETY_CYCLE_TIME of the drive by
selecting softkey COPY SI DATA in the "Drive configuration" display.
Function enabling bits
Axis characteristics (rotary or linear axis)
Measuring-circuit assignment, i.e. which encoder will supply the "safety"
actual value, what type of encoder it is and how it is mechanically flanged.
For rotary axes, an NCK RESET must be given.
Monitoring limits and tolerances
Changeover and monitoring times
Stop responses after a monitoring function has responded
Assignment of safety-relevant inputs and outputs, i.e. which hardware
terminals are supplying the drive signals for the NC monitoring channel
and where are the checkback and cam signals being sent (the PLC
accepts this link for the drive monitoring channel, i.e. there are no
corresponding drive machine data).
Select the softkey labeled COPY SI DATA in the "Drive configuration"
display
5 Commissioning
5.1 Commissioning SINUMERIK 840D
5-277