Lc9100 Alternator Control Board - Life Fitness Lifecycle 9500HR Series Service Manual

Lifecycle 9500HR / 9100 Series Recumbent Exercise Bikes
ELECTRONICS OVERVIEW - LC9100 ALTERNATOR CONTROL BOARD
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 from the alternator to
the load resistor while providing
supply voltage for the console while
charging the system battery.
Connectors and Pin
Connections
Connector
P1 is a Molex 9 pin connector
that connects to the Console
P2 is a 14 pin connector that
connects to the Alternator and
Power Resistor
6
Location Pin Functional Description
1 RPM (0-7.5 VDC)
2 VBAT (9VDC)
3 NOT USED (BLANK)
4 LOAD
5 START
6 GROUND
7 GROUND
8 ALTREGLO (9-11 VDC)
9 VSYS (7-8 VDC)
1 FLD RTN
2 FIELD (1-4 VDC)
3 VALT (10 VDC)
4 LOAD
5 LOAD
6 GROUND
7 GROUND
8 RPM (0-7.5VDC)
9 VALT
10 LOAD
11 LOAD
12 GROUND
13 GROUND
14 GROUND
P1
P2