Wheel System, Traction 211Service Manual – SC6500
™
Pin Wire Color Circuit Voltage
10 BLU/BLK Mode 1 (Curtis Switch 4) 0.003 V Key on
19.2 V Scrub on
0.09 V Scrub on and (“Rabbit” speed
or Traction Control on.)
11 BLK/WHT Mode 2 (Curtis Switch 5) 0.003 V Traction Control off
19.1 V Traction Control on
12 Not Used
13 Not Used
14 Not Used
15 VIO/BLK Throttle POT High (5 V supply) 5.31 V
16 BRN/RED Throttle POT wiper (Pedal
potentiometer Input)
4.91 V Full Forward
2.72 V Neutral
0.51 V Full Reverse
17 Not Used
18 WHT/BLK Throttle POT Low 0.21 V
19 Not Used
20 Not Used
21 Not Used
22 Not Used
23 Not Used
24 Not Used
25 VIO/WHT Unregulated low power +12 V
output. (Power for Programmer
Connector)
12.99 V
26 PINK/RED Regulated low power +5v output 5.03 V
27 Not Used
28 WHT/ORN Serial Transmit for Programmer
Connector
0.11 V
29 BLU/GRN Serial Receive for Programmer
Connector
0.002 V
Momentary jump to 4 V when
programmer is connected
30 Not Used
31 PINK/WHT Drive Motor Encoder Signal - Phase
A
4.80 V or 0.12 V stationary
2.3 V wheel spinning any speed
32 PINK/BLU Drive Motor Encoder Signal - Phase
B
4.84 V or 0.12 V stationary
2.3 V wheel spinning any speed
33 Not Used
34 Not Used
35 Not Used
Motor U, V and W Terminal Pair Voltages
• U to V , V to W or W to U- 63 mVAC with stationary motor. 11.8 VAC with wheel off ground and full
forward speed maintained.
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