Life Fitness Lifecycle 9100 Service Manual page 80

Lifecycle 9100 and 9500HR Series Exercise Bikes
ELECTRONICS OVERVIEW - ALTERNATOR CONTROL BOARD - Model LC9500
Functional Description
The Alternator Control Board is
designed to regulate the alternator
voltage by modulating the field
current. It regulates the pass
current (RPM signal) from the
Alternator to the Console, and the
pass current form the alternator to
the load resistor while providing
supply voltage for the console
while charging the system battery.
o
o
o
P2
Pl
•
Connectors and Pin Connections
Connector
Location Pin Functional Description
P1 is a Molex 11 pin connector
;r;
1 GROUND - BLACK
that connects to the Console
;J)
2 GROUND - BATTERY
2
3 NOT USED (BLANK)
>-<
>.f
4 VSYS (7-8VDC)
>g
5 ALTREGLO (9-11 VDC)
~
6 LOADCMD
~
7
RPM (0-7.5VDC)
~ 8
START (7-8VDC)
i~
9 VBAT - (6VDC)
10 GROUND - BATTERY
11 GROUND
-=-
P2 is a 12 pin connector that 1 GROUND - ALTERNATOR
connects to the Alternator and
r-l 2 GROUND - ALTERNATOR
Power Resistor
3
®
1
3 GROUND - ALTERNATOR
®
® @
4
RPM (5VDC)
@) ~ (j)
5 GROUND - ALTERNATOR
6
FIELD (1-4 VDC)
I@
11
@
7 LOAD
L...J
8 LOAD
9 LOAD
10
VALT (10VDC)
11
VALT (10VDC)
12 LOAD
8
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