ABB IRB6400 - AUTO Mode Circuit; Run Chain 1

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Motors ON/Dual Run Chain Circuitry
Electrical
Troubleshooting Guide
IRB6400 M94A
5.3 AUTO Mode Circuit
The AUTO Mode circuit is very similar to the Manual
Mode circuits. The difference is in the beginning of the
run chains before the key switch. The AUTO mode
circuits bypass the Manual Stop circuits.
5.3.1 Run Chain 1
- Starts on the back plane with 24 VDC.
- Goes through FU4 (1.6 amp fuse).
- Out X35 pin 20.
- To XS3/XT3 terminal A3.
This is where the customer can wire into our Auto Stop
(AS) circuit between XS3/XT3 terminals A3 and A4.
This circuit will stop the robot from running only while
the key switch is AUTO mode. If this circuit is not used
then the customer may place a jumper between XS3/
XT3 terminal A3 to A4.
- 24 VDC then goes from A4 to the back plane X35
pin 11.
- Also to the System board (DSQC 256A) AP41:XP1
pin A13, to the AS LED on the front of the System
board (DSQC 256A).
If this LED's not on, then the circuit is open and
needs repair or closing of the AS circuit.
- 24 VDC comes off the back plane through X34 pin
10.
- To the key switch terminal 2.
If the key switch is in the AUTO mode:
- 24 VDC will go out through terminal 1 on the key
switch and then continue as it did for Manual
modes.
Sheet 7, line 16 ............
Fig. 5-1,2 .........
Sheet 7, line 07 ............
Fig. 5-5 ............
Sheet 7, line 09 ............
Fig. 5-1,2 .........
Sheet 7, line 11 ............
Sheet 7, line 14 ............
Fig. 5-6 ............
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