10
!
CAUTION
Please feed all connection compartment wiring through the rubber grommets and plastic
gland.
2.4.1 Control board connections and settings
The following image shows the control board connections and switch options.
① Master/slave switch position. This switch must be set to ‘MASTER’ when a single
charger is installed. The ‘SLAVE’ setting is only relevant for parallel charger systems.
② 5 pole screw terminal block. The first three positions are connected to the ‘normally
open’, ‘normally closed’ and ‘common’ contacts of the internal alarm relay. This relay
will be activated when the charger shuts down into an error mode. When the error
condition has been cleared, this relay will de-activate again. Please make sure not to
exceed the maximum relay contact rating of 60V and 5A to avoid damaging the relay
or PCB.
On the 4
th
and 5
th
position of the screw terminal, an external switch can be connected
to remotely turn the charger on and off. This switch can be located up to 50 meters
away from the charger. It is advised to use a wire size of 1mm
2
(AWG17) for the
remote switch connection. For the remote switch, any single pole switch can be used.
Only a low power signal must be switched on this line.
③ Remote bypass switch position. When a remote switch is connected to the 5 pole
screw terminal block, the remote bypass switch must be set to OFF. When no remote
switch is used, the remote bypass switch must be set to ON.
