Siemens SINUMERIK 840D Description Of Functions page 286

5 Commissioning
5.3 Conventional acceptance test
5.3 Conventional acceptance test
Testing the SGAs The crosswise data comparison can be tested by removing the connectors from
and SGEs the NCK I/O (NCU terminal block or mixed I/O modules).
Checking the test stop The NCK and drive test stop can be checked by viewing the SGE/SGA signals.
SGEs:
Test stop selection (drive, also the interface signal DB <axis>.DBX23.7
status, pulses are cancelled (only axis).
SGAs:
Shutdown path NCK – enable pulses
Shutdown path checkback signal from the drive – pulses are cancelled, also the
interface signal DB<axis>.DBX108.2.
Negative test:
Remove the terminal block for AS1/ AS2 from the drive and carry-out the NCK
test stop. STOP A stop response must be initiated.
Testing the SBH Test the SBH function by violating the monitoring limits
SI function
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The distance traveled by the axis until it is stopped by the configured stop
response can be read from the actual value display. The time required to stop
the axis can be determined by recording the actual speed value via D/A
converters.
Testing the SG SI The following cases must be tested.
function
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SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Execute numerically controlled traversing motion (JOG).
Provide positive feedback in the position closed-loop control by reversing
the polarity of the position actual value using the machine data.
Start the function generator with speed controller/setpoint input
References /IAD/, SINUMERIK 840D Installation & Start-Up Guide
Correct response:
After the active speed limit value has been exceeded, the axis must have
been stopped within the changeover time to SBH by the configured stop
response.
Incorrect response:
After the active speed limit value was exceeded, the axis was not stopped
to SBH within the changeover time as a result of the configured stop
response. This results in a transition from STOP B to STOP A.
Changeover between the SG limit values (if set). A limit value is selected
that is lower than the actual axis speed.
Changeover between the SG and SBH functions.
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11.03