101 / 157V3.3 11.07.2007 KRC-AD-KRC2ed05-BA en
10. Repair
 Wait 5 minutes until the intermediate circuit has discharged.
Procedure 1. Open the control cabinet door.
2. Open the PC chassis.
3. Disconnect the mains supply and outgoing cables.
4. Remove the knurled screw.
5. Pull the mounting plate with the KPS-27 to the left out of the holders.
6. Remove the fastening screws of the KPS-27 from the rear of the mounting 
plate.
7. Screw the new KPS-27 onto the mounting plate.
8. Push the right-hand side of the mounting plate into the holders and fasten 
it with the knurled screw.
9. Connect the mains supply and outgoing cables.
10.19 Exchanging the KSD
Preconditions  The robot controller must be switched off and secured to prevent unau-
thorized persons from switching it on again.
 The power cable must be de-energized.
 Observe the ESD guidelines.
 Wait 5 minutes until the intermediate circuit has discharged.
Procedure 1. Open the control cabinet door.
2. Unplug the KSD connections.
3. Lift the upper retaining clip with a screwdriver until the locking devices are 
free. Tilt the top of the KSD slightly forwards, so that the retaining clip can-
not snap back into the locking device.
Caution!
Voltages in excess of 50 V (up to 600 V) can be present in the KPS, the 
KSDs and the intermediate-circuit connecting cables up to 5 minutes after 
the control cabinet has been switched off!
Fig. 10-12: Exchanging the KPS-27
1 Knurled screw 3 Outgoing cables
2 Holders
Caution!
Voltages in excess of 50 V (up to 600 V) can be present in the KPS, the 
KSDs and the intermediate-circuit connecting cables up to 5 minutes after 
the control cabinet has been switched off!