Installation Guide

Classic owner’s manual Rev I 2193
42 |
P a g e 1 0 - 0 0 1 - 1 R E V : I
Aux 2
IN/OUT
-
-
Aux 1
RELAY/OUT
Aux 1 and Aux 2 Graphs/Jumpers
Figure 3.0 shows the two Aux port terminals, with their respective
Polarities. These terminals are located at the bottom of the
Power board below the battery temperature jack. Use a mini
flat head screw driver to tighten the screws. The jumpers are
described in the section below.
In order to select operation of Aux 1 between relay contact or 12v output JP6 and JP8 need to be
configured accordingly following the instructions provided in this section. (Set for dry contact by default)
Diagram 2
When Aux 1 is used to supply 12v out, JP6 and JP8 have to be in the position shown in Diagram 2. The basic
schematic of how this works is shown above. The 12v out is more like 14.5v. The maximum current from Aux 1
should not exceed 200mA. The Aux 1 output can be set to operate at either Active High (12V) or Active Low (0V)
when the Aux 1 function condition is true. For more information see Output on page 36.
To configure Aux 1 to use the internal relay, JP6 and JP8 have to be in the position shown in Diagram 3.
This configuration is commonly known as ―dry contact‖ because it does not provide 12v at the Aux1
terminals; it acts more like an isolated switch (to the ratings of the relay). The Aux 1 output can be set to
Figure 3.0
Diagram 3