Section 3 - Troubleshooting
LEDs at I/O Board
114101-000 X26 Ultra Narrow - Service Manual
Page 3-7
3-7 LED
S
AT
I/O B
OARD
G
REEN
LED ON
The Green LED indicates that power is present at the board.
R
ED
LED ON
The Red LED indicates a short in the system. To locate the problem;
1. Push both E-Stop switches to the OFF position.
2. Turn the Keyswitch to the OFF position, then to either Platform or Chassis.
3. Pull both E-Stop switches to the ON position.
• The Green LED should be ON.
• The Red LED should be OFF.
4. Perform all machine functions until the Red LED is ON. Determine which function activated the
Red LED and check all components that are active for that function.
Figure 3-5:
I/O Board Connections
1234
8765
1
2
3
4
8
7
6
5
1
2
3
4
12
11
10
9
5
6
8
7
1
2
3
4
12
11
10
9
5
6
8
7
1
2
3
4
8
7
6
5
Part
No.
Serial
No.
4
3
2
1
J2
J1
J5
J4
J3
Green LED
Red LED
Grey
Green
Black
Dip Switch