TM 5-3610-253-14
IAR BOARD LEDs
Color
Lit Indication
LED
Cutting buttons actuated within 0.5 seconds
Red
V1
Light barrier test positive
Red
V2
Safety bolt solenoid not energized.
Red
V3
Knife carrier upper position
Yellow
V4
Clamp up
Yellow
V5
Clamp foot pedal depressed
Yellow
V6
Forward backgauge movement
Yellow
V7
Reverse backgauge movement
Yellow
V8
Manual backgauge operation
Yellow
V9
Yellow
(Not Used)
V10
Red
Locking valve (M1) energized
V12
Red
Clamping valve (M2) energized
V19
Red
Clutch valve (M3) energized
V23
Red
(Not Used)
V27
(6) Hardware channel (HK). Performs the logic operations for the cutting
cycle. Performs identical logic operations as done by AR circuits. The circuit has a
+12 V stabilizer circuit which uses a +24 V supply. The HK board also has an
electronic stage for the control of the safety bolt. Inputs and outputs of the HK
board can be checked by 18 LED indicators on the board. Table 5-13 shows the
indication indicated by a lit LED.
5-325
