104Service Manual – SC401, SCRUBTEC 344 20 - Wheel System, Traction
Shop Measurements - Main machine controller (EB1) (continues)
Power Supply
Figure 16:
PIN Color Description Measured Comments
1 Red Brush output + POT. +
13.82 V B-
2 White Brush output - POT. IN
0 V Vref PIN 3 -> Min
speed
13.38 V Vref PIN 3 -> Max
speed
3 Blue POT. -
0.44 V B-
12 Green Drive enable
0.0 V (No enable) B-
4.95 V (Enable) B-
13
Black/
Yellow
Reverse direction
0.00 V (No reverse) B-
23.26 V (Reverse) B-
14 Violet Output
23.35 V (Machine ON) B-
15
Black/
Orange
Key input
23.72 V (Machine ON) B-
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