MENU SYSTEM
Copyright
Trace Engineering Company, Inc.
5916 - 195th Street N. E.
Arlington, WA 98223
Telephone: 360/435-8826
Fax: 360/435-2229
www.traceengineering.com
SW Series Inverter/Charger
Part No. 2031-5
Rev. B: Sept 1, 1999
Page
51
Set Pre Crank
seconds
10
All Models
Range: 00 to 255
Sets the number of seconds the system delays closing of relay RY8 - the star signal relay - once relay
RY7 is closed. See the AUTOMATIC GENERATOR CONTROL MODE for more information. This period
may also be the amount of time that the glow plugs will be on if they are connected to the automatic
control system.
Set Max Cranking
seconds
10
All Models
Range: 00 to 15
Sets the maximum number of seconds the starter will be cranked during the starting sequence by closing
relay RY8. See the AUTOMATIC GENERATOR CONTROL MODE for more information.
Set Post Crank
seconds
30
All Models
Range: 00 to 255
Sets the number of seconds the system will delay after completing the start sequence. If the generator has not
started, this sequence will be repeated up to 5 times. See the AUTOMATIC GENERATOR CONTROL MODE
for more information. This period is provided to allow the starter motor to cool off. It can also allow generators
with built in warm-up delay contactors to provide AC output before the inverter attempts a re-crank cycle.
AUXILIARY RELAYS (14) MENU HEADING
Three voltage-controlled relays are provided to simplify installations that have battery voltage related tasks
to perform. They are single pole double throw, five amp relays. Both the normally closed and normally
open contacts are available for each relay. The operation of the relays is individually controlled and
adjustable. The three auxiliary relays operate independently of the inverter/charger status (being on or off).
Both the normally open (N.O.) and normally closed (N.C.) contacts are available for each of these auxiliary
relays. Use the crimp-on terminals provided in the hardware package to connect to these contacts.
CAUTION: These relays are not intended to directly control a load or charging source - rather they can be
used to send a signal or operate the coil of another higher amperage device which does the actual
switching of the power. A fuse rated at 5 amps or less should be included to protect each of the
relays. Damage to these relays from overloading is not covered by warranty and requires the inverter to
be returned to a repair center. This also applies to the relays that are provided to start a generator.
The SET RELAY VOLTS DC setting sets the voltage trip point for each of the auxiliary relays (9, 10, and
11). When the battery voltage exceeds this setting, the relay energizes and closes the N.O. and COM
terminals on the relay. This setting is compensated for the battery temperature when the BTS is used.
There is no intentional time delay (0.1 sec) on the reaction for this setting; this allows fast response to
rapid voltage changes in the system
The HYSTERESIS VOLTS DC setting determines the voltage difference between when the relay
becomes energized and when it is de-energized. This is an “active high” type of control. The N.O. and
COM terminals of the relay close (relay is energized) when the battery voltage exceeds the AUX RELAY 9
VOLTS DC setting and opens (relay is de-energized) at this setting minus the R9 HYSTERESIS VOLTS
DC setting. The N.O. and COM terminals of the relay remain open (de-energized) until it again reaches
the AUX RELAY 9 VOLTS DC setting. (For example, the default setting energizes the relay when the
voltage exceeds 14.5 VDC and de-energizes when it drops below 13.5 VDC for 12-volt systems). There is
an intentional 2-second time delay to reduce cycling.
Summary of Contents for SW II - REV 4.01
Page 151: ......
