119 / 157V3.3 11.07.2007 KRC-AD-KRC2ed05-BA en
11. Troubleshooting
KCP coupler card
11.11 KCP coupler troubleshooting
Fig. 11-9: LEDs on the KCP coupler card
Item LED State Meaning
3 H10 On 24 V ESC
4 H9 On Switched 24 V ESC
5 H6 On Test output channel B
6 H5 On Test output channel A
7 H7 On Switched 24 V KCP
8H8 On 24V KCP
9 H11 On 5 V KCP coupler
Fault Remedy
Wrong KCP variant connected. Switch off the robot controller, con-
nect the correct KCP variant and 
switch on the robot controller.
KCP disconnected without prior 
request.
Adhere to correct procedure. 
(>>> 8.1.1 "Uncoupling the KCP" 
page 85) (>>> 8.1.2 "Coupling the 
KCP" page 85)
KCP disconnected before the dis-
play was dark.
KCP disconnected too long after 
request.
Dual-channel error at request but-
ton.
Check wiring, connectors and con-
nections.
Cross-connection at request button.
ESC communications error in inter-
nal cabinet ring.
Check wiring, connectors and con-
nections. Perform ESC reset.
ESC communications error in KCP Check wiring, connectors and con-
nections to KCP. Exchange defec-
tive KCP or KCP cable.
CAN communications error in KCP