Class1 Total System Manager - Manual (Page 4)

4
O
PERATIONAL
D
ATA
Level 0 Never Shed
Level 1 11.0 Volts
Level 2 11.4 Volts
Level 3 11.8 Volts
Level 4 12.0 Volts
Level 5 12.2 Volts
Level 6 12.4 Volts
Level 7 12.6 Volts
Level 8 12.7 Volts
SHED POINTS UNSHED POINTS
FAST IDLE
A fast idle output is activated whenever
the system voltage is reduced to 12.8 VDC
for at least one minute.
The fast idle output will remain ON for a
minimum of 10 minutes
and until 13.0 VDC
is achieved.
The fast idle output is dependent on the
Parking Brake and Load Manage Enable
Inputs.
NOTE
1: This output should only be used
as part of a fast idle control system when
the proper safety interlocks are present.
NOTE
2: The FAST IDLE output will turn
off immediately when the Load Manage
Enable Input is removed from ground po-
tential.
LOW VOLTAGE ALARM
Whenever the system voltage drops
below 11.9 VDC a low voltage alarm
output (ground) is activated.
This complies with the N.F.P.A. 1901 re-
quirements.
NOTE: S
HED
P
OINT
is the voltage that will cause a load to be turned off if the
system voltage drops to this point.
U
NSHED
P
OINT
is the voltage that must be achieved before a load is turned
back on once it has been shed.
* *
*
SEQUENCING
Electrical loads will turn on sequentially
in priority order from 1 to 8 when their
respective switch is activated (either igni-
tion or warning master) and the vehicle is
operated in the mode selected for that out-
put (response and/or scene.) Loads will
sequence off in reverse order. Priority zero
loads will be sequenced on and off but will
not shed.
SHEDDING
Electrical loads will be turned off (shed)
when the system voltage drops to the shed
point for a minimum of 1 minute (this pre-
vents load shedding due to momentary
system power loading such as high cur-
rent start-up devices.) Once shed, loads
will remain off for a minimum of 5 minutes
and until the unshed voltage is achieved
for a minimum of 1 minute. Loads will
only shed if the Parking Brake is set and
the Load Manage Enable input is
“grounded”
Level 1 11.4 Volts
Level 2 11.6 Volts
Level 3 12.0 Volts
Level 4 12.2 Volts
Level 5 12.4 Volts
Level 6 12.6 Volts
Level 7 12.8 Volts
Level 8 13.0 Volts