KEYENCE SL-R11E - Manual (Page 40)

Chapter 6 Maintenance
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English ENGLISH
6 Maintenance
6-1 Regular Inspections
6-1-1 MPCE Inspection
Refer to the SL-C instruction manual and put the SL-C Series in the blocked beam state, or use the test input
and turn this unit's OSSD output off.
At this time, confirm that both OSSD outputs are off, and that the MPCE (machine primary control element)
which is connected to the OSSD is off.
If there is a problem, replace the MPCE.
6-1-2 E-STOP Function Check
1. Check to make sure there are no errors in the wiring between the SL-R11E and E-STOP switch.
2. If the wiring insulation is damaged, replace it immediately.
3. Actually operate the E-STOP function and check to make sure the SL-R11E's OSSD output
terminal turns off and that the machine stops. In addition, check the SL-R11E indicator and
confirm that the LEDs for both E-STOP1 and E-STOP2 are off.
4. Reset the E-STOP switch. At this time, check that the OSSD outputs are kept off. (The restart
interlock function will automatically operate when the OSSDs are turned off by the E-STOP
even when the restart interlock function is not used.)
5. Use the restart input to reset the OSSD output. At this time, if the SL-R11E goes to lockout
condition and the OSSD output is not recovered, there is probably a wiring problem or an E-
STOP switch failure, etc., so immediately stop using the machine and make repairs. Absolutely
do not use the machine until the repairs are completed.
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