Magnum Energy AGS Stand Alone (ME-AGS-S) - Manual (Page 12)

9 © 2013 Magnum Energy, Inc.
2.5 ME-AGS-S Terminal Block Wiring
The controller should now be mounted. For the following steps, refer to Figure
2-7 for reference when wiring the generator to the controller’s terminal block:
1. Unplug the green 8-port friction-fi t terminal block from the controller
by pulling it straight out. Ensure the openings are unscrewed enough to
allow the wires to be inserted.
CAUTION: DO NOT plug in the 8-port terminal block. After all
the wiring to the controller is complete and all the settings have been
confi gured, a power-up test will be performed Section 4: Operation.
DO NOT plug in the 8-port terminal block until then.
CAUTION: A fuse rated at 5 amps or less must be used to protect
all power circuits (except for ground connections) connected to the
AGS controller. Ensure the fuse is correctly rated for the wire size
used. Refer to national and local codes for rating and type. Normally,
a minimum #16 AWG wire is required to use a 5-amp fuse.
Info: The green 8-port terminal block accepts CU/AL conductors from
#30 to #12 AWG (0.05 to 3.3 mm 2 ).
2.5.1 Power Connections (Terminals 3 and 4)
2. Connect a wire (black) from the monitored battery bank’s negative ter-
minal to Terminal #4 on the 8-port terminal block.
3. Connect a wire (red) with a 5-amp, in-line fuse from the monitored bat-
tery bank’s positive terminal to Terminal #3 on the 8-port terminal block.
2.5.2 Generator Run Sense Connection (Terminal 2)
Terminal #2 on the 8-port terminal block is used as a generator run sense (i.e.,
switched B+ or a positive battery signal from the hour meter or gen running
light). This run sense voltage is used to determine that the generator is running
and to prevent another starter crank while the generator is already running.
Info: The run sense signal from the generator to Terminal #2 (posi-
tive) and Terminal #4 (negative) must be between 10-40 VDC and
only while the generator is running.
4. Connect a wire (preferably not black or red) from the generator’s run
sense output to Terminal #2 on the 8-port terminal block.
5. Connect the negative terminal of the monitored battery bank to Terminal
#4 (power negative) on the 8-port terminal block. Ensure the negative
terminal on the generator battery is referenced/connected to the nega-
tive terminal on the monitored battery.
Info: The negative side of the run sense signal from the generator
must be in common with the negative side of the monitored battery
bank. This ensures that the positive battery voltage (to Terminal #3)
and the positive run sense voltage (to Terminal #2) have a common
negative reference (to Terminal #4) and are correctly measured by
the ME-AGS-S.
Installation