Class1 ESM3 - Manual (Page 2)

2
105519 08172000
Sequence
All outputs sequence on (T1-T7) and off (T7-T1).
Automatic Load Reset
Any load which has been shed will remain off for a minimum of two minutes.
The loads will be controlled back on (unshed) by the system when the sys-
tem voltage rises above the unshed level.
Shed loads can be turned on immediately by turning off the load manage-
ment enable input.
Over-Voltage Indicator
The system manager continually monitors the system voltage and will acti-
vate output T15 ( SW1 switch 3 ON) when it detects that the system voltage
has increased above 15.0 volts. The system will not react to the spurious
voltage transients which may exist in the electrical system as loads and de-
vices are cycled.
Fast Idle Control
The system manager is capable of becoming a part of a system which con-
trols a fast idle device. The fast idle output T15 (SW1 switch 3 OFF) will
activate whenever the system voltage falls to 12.8 volts or below.
The output will deactivate if the system manager is reset, load management
disabled or when the system voltage recovers above 12.8 volts.
This output should be utilized with appropriate safety interlocks.
Battery Warning
The Battery Warning feature is a special output (T 8) which indicates that the
electrical system voltage has fallen below 11.9 VDC.
The Class 1 system manager continuously monitors the electrical system.
This output can be wired to a warning device that requires less than 250 mA
or to a relay if higher current devices are used.
Isolated Battery Warning
This is an optional configuration used when an isolated (auxiliary) battery
needs to be monitored. J9 must be in the ISO BATTERY position and SW1
switch 1 must be turned ON. T7 becomes the Isolated Battery Warning output
and activates when the isolated battery voltage falls below 11.9 VDC.
This output can be wired to a warning device that requires less than 250 mA
or to a relay if higher current devices are used.
Standard Features