Electrical
Troubleshooting Guide
IRB6400 M94A
Appendix E - 4
Circuit Diagrams
64 Pin Ribbon
Connector
Connector on Computer
Back Plane
Abbreviations:
AP - Computer board connection
EV - Fans
FS - Automatic fuses, also known as circuit breakers
FU - Fuses
KM - Large relay on top of swing gate
K - Small relay on system board
RV - Noise suppression drive
XT - Terminal strip
XS - Socket side of a connector (female pin)
XP - Pin side of a connector (male pin)
SA - Switches "A"
SB - Switches "B"
TM - Transformer
Z - Noise suppression device
Connector on
Drive Back Plane
E2. Connector Labeling
Ribbon cables are sometimes used in the control cabinet and are designated as shown below. The
connectors on the ends of the ribbon cable are typical to the way all connectors are labeled throughout
the circuit diagrams.
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