COMMISSIONING
EN / Alpha alternator - Alpha Pro II regulator / January 2013
17
Figure 15: Overview of the Alpha Pro II regulator
1. Settings selector 12/24V, MasterBus
2. Yellow LED to indicate Bulk phase
3. Yellow LED tot indicate Absorption phase
4. Yellow LED to indicate Float phase
5. Green LED to indicate MasterBus traffic
Figure 16: Connections of the Alpha Pro II regulator
1
2
3
4
5
6
7
8 9
10
11
12
1
2
4
3
Temperature
sensor
4. Reg on (brown)
3. D+ lamp (yellow)
2. W (white)
1. Not used
+
_
MasterBus
+
_
Field coil
Field coil
Battery
Cable assembly
Reg on
D+
W
