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Wheel System, Traction
147
Service Manual – Condor
™
EcoFlex
™
, BR 1100/1300 EcoFlex
™
Traction Wheel System Wiring Diagram
Circuit Description
The
A1 Speed Controller
gets positive voltage from the
Battery
when the load side of contactor
K7
is closed
Contactor
K7
closes when the
Circuit Breaker F1
and
Key Switch S1
are closed The
A1 Speed Controller
is
connected to battery ground
The
Seat Switch S2
and
Battery Interlock Switch S3
must be closed to provide input to the
A2 Control Board
Assembly
Moving the drive pedal forward or backward changes the resistance through the
5k Ohm Pot R1
, which
changes the 0-5 VDC voltage signal to the
A1 Speed Controller
Note that 2 5 VDC to the
A1 Speed
Controller
is neutral The
A1 Speed Controller
interprets the input voltage as a direction and percentage of
throttle movement, and sends the appropriate voltage to the
Traction Motor M1
The PWM voltage to the
motor armature connections (
A1
and
A2
) controls the motor speed. The polarity of the voltage to the field
connections (
F1
and
F2
) controls the motor direction
A2 Control
Board
Assembly
A3
Switch/Display
Panel Assembly
Fuse, 250 A
36V Battery
A1
Speed
Controller
Motion
8
B-
M-
B+
F4
K7
F1
S1
S2
S3
D1
Key Switch
Seat Switch
Battery Interlock Switch
(for roll-out Battery)
Diode
Circuit Breaker, 3 Amp
4
5
6
7
3
2
9
14
S2
S1
15
16
Direction
Fault
Mode 2
Mode 1
Battery Ground
CAN H
CAN L
B+
B-
+
-
M1
F1
A1
Traction Motor
A2
F2
M
Pot. 5k Ohm
Rev.
R1
1
3
2
For.