Simplex, Inc., 5300 Rising Moon Road, Springfield, IL 62711-6228 • 217-483-1600 • Fax 217-483-1616
© 2007 Simplex, Inc. All Rights Reserved. • Printed in the USA. • www.simplexdirect.com
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LOAD BANK MANUAL • Saturn 3000 DV • W.O. 63798/2 • page 6 of 20
PROCEDURE
1. Confirm the test source is properly
grounded and ground the Load Bank
in compliance with NEC.
2. If Remote Control is desired, using
CAT 5 Patch Cable, connect the
laptop computer to Receptacle 3 on
the Load Bank.
3. Confirm all load command switches
are in the “Off” position.
4. Confirm the Disconnect Switch
(DSW) is in the “Off” position.
5.
See Fan/Control Power Drawing
47B164462B. Connect and external
480/600V, 3ø, 60Hz, 60A source to
FCB 1A as shown.
Consult NEC for proper wire size.
6.
See Control Drawing 47B164461C.
Using #14 AWG copper wire or
greater with a torque of 35 in. lbs.,
connect customer supplied Load
Dump contacts to TB‘LD’ 1–2 or place
the “Load Dump Mode” switch in the
“Bypass” position.
Load is disengaged when the con-
tact is open.
Load is engaged when the contact is
closed.
7.
See Resistive Load Section 1 Draw-
ing 47B164469. Cable the load
source to the Load Bank as shown.
Consult NEC for proper wire size.
8. Place the Disconnect Switch (DSW)
in the “On” position.
9. Place the Fan Circuit Breakers (FCB
1A or FCB 1B) in the “On” position.
OPERATION
LOCAL
1. Place the “Load Voltage Selector”
and “Fan/Control Power Voltage Se-
lector” switches in the appropriate
positions.
2. Place the “Load Bank Mode” switch
in the “Local Manual” or “Remote”
position.
3. Start-up generator or bring other test
source on line.
If External Fan/Control Power is be-
ing used, “Fan/Control Power” switch
in the “On” position to energize the
cooling fan before starting the gen-
erator to assure proper fan opera-
tion.
4. Adjust power source voltage and fre-
quency.
5. Place the “Fan/Control Power” switch
in the “On” position to energize the
cooling fan.
A false “Cooling Failure” lamp indica-
tion may be present until the cooling
fan creates sufficient airflow to close
the Fan Pressure Switch (PS). The
“Normal Operation” lamp illuminates
and control voltage is supplied to the
“Master Load” switch. With voltage
supplied to the “Master Load” switch,
the operator is now ready to apply
load steps.
6. Verify the illumination of the “Normal
Operation” lamp before proceeding.
7. Visually observe correct fan opera-
tion and investigate any unusual fan
related noises.
8. Check air intake for obstructions and
confirm positive air flow.
