DSE 720 - Electrical Connections; Connector A

- 18 - 057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM
6 ELECTRICAL CONNECTIONS
6.1 CONNECTION DETAILS
The following describes the connections and recommended cable sizes to the 3 plugs and sockets
on the rear of the Module.
Termination at the plug is by screw terminal : Tightening torque 0.8Nm (7 lb-in)
6.1.1 CONNECTOR A
PIN
No
DESCRIPTION CABLE SIZE NOTES
1 Plant supply negative 2.5mm
2
(13 AWG)
2 Plant supply positive 2.5mm
2
(13 AWG) Fuse at 2A anti-surge
3 Emergency stop input 1.0mm
2
(18 AWG) Switch to battery positive, OPEN to
STOP the set.
4 Fuel output 1.0mm
2
(18 AWG) Connect to Fuel slave relay coil
5 Start output 1.0mm
2
(18 AWG) Connect to Start slave relay coil
6 Configurable output 1 1.0mm
2
(18 AWG)
7 Configurable output 2 1.0mm
2
(18 AWG)
8 Mains loading switch output 1.0mm
2
(18 AWG) Connect to Mains slave relay coil
9 Generator loading switch output 1.0mm
2
(18 AWG) Connect to Gen slave relay coil
10 Charge Fail / Excite 2.5mm
2
(13 AWG) Do not connect to ground (battery -ve)
11 LOP input 0.5mm
2
(20 AWG) Sender / Switch( to plant supply
negative) input
12 HET input 0.5mm
2
(20 AWG) Sender / Switch( to plant supply
negative) input
13 Sender/Switch common 0.5mm
2
(20 AWG) Requires a contact to plant supply
negative.
NOTE:- Emergency stop input is normally closed to positive, open to STOP the set. If
Emergency Stop is not required you must connect a permanent positive signal onto
terminal 3.
NOTE:- Fuel, Start, configurable output 1, configurable output 2, mains loading switch
and generator loading switch outputs are Solid State Outputs that switch to battery
positive when active. See section entitled “Solid State Outputs” elsewhere in this manual
for further details.
NOTE:- The Close Mains Slave relay should be NORMALLY CLOSED when de-
energised for fail safe reasons. Should the DC supply fail the mains will always be
available. The output from the DSE solid state output will energise to OPEN the relay and
isolate the mains supply from the load.
NOTE:- Terminal 13, sender common must be connected to a sound earth point on the
engine block, or battery negative. The connection to terminal 13 must not be used for any
other purpose.
NOTE:- When using Switches instead of senders (oil pressure / coolant temp) connect
the switch from T13 to the relevant input (T11 = oil press, T12 = coolant temp) AND
connect T13 to battery negative.