Class1 Electrical System Manager - Manual (Page 11)

11
OPERATING VOLTAGE
7.5 to 20 Volts DC
OUTPUTS
High Side Drivers
Vmain @ 0.5 amp (source)
Low Side Drivers Ground @ 0.5 amp (sink)
ISOLATED BATTERY INPUT
0 to 20 Volts DC
TRANSIENT SUPPRESSION
Outputs are protected against thermal overload, direct shorts and transient
spikes from -50 to 60 Volts DC.
LOAD CONTROL
Loads will be cycled on whenever the Master Switch is activated.
The System Manager will control loads and the high idle function only when
the Shed Enable input (terminal #11) is active.
Loads are shed from lowest priority to highest priority, level 1 to level 7,
except for units with a positive master switch, they shed level 7 to level 3.
The voltage points are respectively:
L1-12.2, L2-11.95, L3-11.70, L4-11.45, L5-11.25, L6-11.10 and L7-10.95
VDC. Voltage must drop below the shed point for 30 seconds for a load to
shed and voltage must be above the shed point for 60 seconds for a shed
load to unshed.
NOTE: The unit can be configured so that the loads can be turned on only by a manual
reset.
No automatic recycling
MANUAL LOAD RESET
Toggling the Master Switch off and then on again within 2 seconds manu-
ally resets the loads. Loads that were shed off will be cycled on and the
high idle control will be reset. The System Manager will disable itself for 15
minutes.
MANUAL FULL RESET
Toggling the Master Switch off for more than 2 seconds will cycle all loads
off. The system will return to normal operation when the Master Switch is
toggled back to the on position.
NOTE: A signal applied to terminal #9 (system override) will force all loads ON,
completely bypassing all load control functions of the unit.
SPECIFICATIONS