Sima Products STP-3000 User Manual
STP-3000
12V DC POWER INVERTER
OWNER'S
Sima Products Corporation
140 Pennsylvania Ave.
Bldg. #5
Oakmont, PA 15239
800-345-7462
www.simacorp.com
MANUAL
Page 1 of 14
STP-3000
Owner’s Manual
Table of Contents
1. Introduction................................................................................................................................. 3
2. Working Principle of your Sima STP-3000.................................................................................. 3
2.1 Principle of Operation
2.2 SIMA
STP-3000 Output Waveform
...............................................................................................................................................3
.....................................................................................................................3
..................................................................................................................3
3. Physical Layout of the Sima STP-3000....................................................................................... 4
4. Permanent Installation ................................................................................................................ 5
4.1 Where to Install
4.2 Battery
............................................................................................................................................5
...............................................................................................................................5
5. Cable Hook-up............................................................................................................................ 6
5.1 Battery Cables ( if cable installation kit is not included)
....................................................................7
6. Operation.................................................................................................................................... 8
6.1 Front Panel Controls and Indicators
6.2 Operating Limits
.............................................................................................................................9
................................................................................................8
7. Accessories................................................................................................................................. 9
7.1 AC Receptacle option
7.2 Remote ON/OFF switch option
7.3 DC Box-Lug connectors
7.4 Manual or Automatic Transfer Switch
7.4 Maintenance
...................................................................................................................................9
......................................................................................................................9
.........................................................................................................9
..................................................................................................................9
..............................................................................................9
8. Troubleshooting.......................................................................................................................... 9
8.1 Common Problems
8.2 Troubleshooting Guide
..........................................................................................................................9
.................................................................................................................. 10
Appendix A - Battery Sizing .......................................................................................................... 10
Appendix B – Connection to Multiple Batteries..............................................................................11
10. Limited War ranty..................................................................................................................... 12
11. Specifications.......................................................................................................................... 12
11.1 Electrical Performance
11.2 Product Dimensions
STP and Sima
All other products and names mentioned herein may be property, trademarks or registered trademarks of their respective companies & owners.
Entire contents copyright of Sima products Corporation Inverter Owner’s Manual © 2005
logos
and combinations thereof trademarks of
All rights reserved. Reproduction in whole or in part without permission is prohibited.
................................................................................................................. 12
.................................................................................................................... 12
Sima Products Corp., Ltd.
or its subsidiaries in all countries.
Sima Products Corporation
Page 2 of 14
CHASSIS G
SIMA STP-
Owner's Manual
3000 12V DC
1. Introduction
Your new Sima STP-3000 inverter is the most advanced DC to AC inverter available today from the SIMA family. It is designed to give you years of
dependable services everywhere in your RV, boat, service vehicle, office, shop or remote home.
Proper installation of the Sima STP-3000 is needed to obtain its best performance as instructed in this installation and operat ion manual. Please read
carefully before installing and using your Sima STP-3000. Statements marked 'CAUTION' and 'WARNING' in this manual call for special attention
about the Sima STP-3000.
“CAUTION” statements identify conditions or practices that could resul t i n damage to your Sima STP-3000 or to other equipment.
“WARNING” statements identify conditions or practices that could result in personal injury or loss of life.
2. Working Principle of your Sima STP-3000
A Power Inverter electronically converts electricit y of low voltage DC to 115V AC. Advanced power conversion t echnol ogy has been i ncorporat ed i n
the design of Sima STP-3000, leading to a smaller, lighter, and easier-to-use inverter.
2.1 Principle of Operation
The Sima STP-3000 first raises low
voltage DC to 145 volts DC using modern high
frequency power conversion techniques, and then
converts the high voltage DC into 115 volts,
60Hz AC using advanced power
transistors in full bridge configuration.
High surge capability to operate tough reactive
loads like fluorescent lamp ballasts and inductive
motors are incorporated.
MOSFET
+
DC INPUT
-
DC-DC
CONVERTER
170 V DC
ND
Figure 1. SIMA STP-3000 – Principle of operation
2.2 SIMA STP-3000 Output Waveform
Sima STP-3000
The
"Modified Sine Wave" waveform for its AC outputs
Figure 2
(
to the sine wave shape of utility power.
This waveform is suitable for most AC loads found in
electronic equipment, transformers, and motors. It is
also superior to the square waves produced by other
DC to AC inverters.
CAUTION: Do NOT Use Sima STP-3000 with the
following RECHARGEABLE APPLIANCES
Some rechargers for small nickel cadmium batteries
can be damaged if connected to the
including the following equipment types:
1). Small battery operated appliances such as
2). Some battery pack chargers for hand power tools
). It is designed to have characteristics similar
flashlights, razors, and night-lights that plug
directly into an ac receptacle to recharge.
with warning labels stating that dangerous
voltages are present at the battery terminals.
generates "Quasi-Sine Wave" or
STP-3000
Figure 2. Waveform of Modified Sine Wave
The vast majority of battery-operated equipment uses separate chargers or transformers that are plugged into AC receptacle to produces low voltage
outputs and hence would not have this problem. SIMA’s STP-3000 will power safely with less than 30-volt dc-output adapters or chargers.
Sima STP-3000
The
voltmeters are calibrated to the
modified sine wave correctly.
must be used to accurately measure the output voltage of your Sima STP-
is designed to have a True RMS (root mean square) voltage of 115 volts, the same as AC power. Most digital and analog AC
MEAN
of the waveform rather than the true RMS value and such
True RMS reading voltmeters
(such as Fluke 87, Fluke 189, Fluke 8060A, Beckman 4410, or Tektronix TDS 220)
3000
.
meters will not read the true RMS voltage of a
INVERTER SECTION
POWER
MOSFET
GND
AC OUTPUT
Page 3 of 14
p
3. Physical Layout of the Sima STP-3000
Power flows logically from the rear terminals of the
box). All indicators, controls, and output connections are convenient ly accessed from the front panel (See
functions are explained in Section 6.1 below. A circulating fan draws cooling-air in from the rear and forces the flow out through vents on the front
panel.
NOTE: It is extremely important to provide adequate airspace around the unit surfaces to allow for convection
cooling as described in Section 5.1 –
Sima STP-3000
Where To Install.
unit forward to the front panel of the AC output receptacle (or optional junction
Figure 3a
Figure 3b
and
). Their detail
Figure 3. AC and DC panels of the SIMA STP-3000
A. AC PANEL
OVERLOAD INDICATOR:
Lights when inverter shuts down
because of severe overloa d. T u rn
inverter off. Remove cause of
overload, and turn inverter on to
reset .
ON/OFF SWITCH:
Leave in OFF position during
installation
CAUTION! THIS IS NOT A
DISCONNECT SWITCH.
REMOVE POWER AT THE SOURCE
BEFORE SE RVICING.
OVER TEMP INDICATOR:
Inverter is shut down while
indicator is ON. Inverter will
restart automatically.
Indicator lamp and alarm will
turn off when the inverter
cools. Lights and alarm alerts
when inverter protects itself
against OVERHEATING.
B. DC PANEL
Ventilation Opening
DO NOT OBSTR UCT – Allow at least 4 inch
(100 mm) clearance for air flow.
BAR GRAPH METERS:
Display battery voltage and current. Current should be in the
GREEN zone ONLY for continuous operation; The inverter w ill
operate for several minutes when the current in the Yellow zone:
operation with battery voltage or current in the red zone of the
meter will result in protective shutdow n of the inver ter.
Modular jack
for Remote control
AC GFI outlet (Inverter output)
RED: Positive “+”
CAUTION: Reverse polarity
will open in ternal fu s e s and
MAY damage the inverter
ermanently
BLACK: Negative “-”
CHASSIS GROUND LUG.
WARNING: Operation of the inverter
without a proper ground connecti on m ay
result in a n e lec t rical sa fety hazard
Page 4 of 14
4. Permanent Installation
4.1 Where to Install
The following environmental requirements are essential for installing the invert er:
a) Dry - Do not allow water to drip or spla sh on the Sima STP-3000.
b) Cool – Ambient air temperature should be between 0°C and 40°C (32°F and 105°F). The cooler, the better.
c) Ventilated – Ensure that the unit is in a compartment that is ventilated. Allow at least 2 inch (5cm) of clearance
around the
Sima STP-3000
for airflow. Make sure that ventilated openings on the front and rear of the unit are
not obstructed.
d) Safe – Do not install the SIMA STP-3000 in the same compartment as batteries or any place likely to
accumulate flammable liquids such as gasoline (See warning below).
e)
Close to Battery
– Install as close to the battery as possible so as to minimize the length of connecting cable
between the inverter and the battery. Do not install in the same compartment. It is more efficient to allow longer
AC wires than DC cables due to smaller current flows in the AC wires.
CAUTION!
To reduce fire hazard, do NOT cover or obstruct ventilation openings. To avoid overheating, DO NOT install the
Sima STP-3000
in a
zero-clearance compartment.
WARNING!
This equipment contains components that tend to produce arcs or sparks. To reduce risk of fire or explosion, do NOT
install in compartments containing batteries or flammable materials or in places where equipment needs to be ignition-protected.
The STP-3000 may be mounted horizontally or vertically on flat surfaces using the mounting flanges on the panels. Mounting
hardware should be corrosion resistant and of #10 or larger in diameter.
4.2 Battery
Battery performance strongly affects outputs from your Sima STP-3000 and correct battery size and type must be utilized. Selection criteria of
batteries are listed below for your specific applications.
A. Battery type
The lead-acid battery of your automobile can deliver large current for a short duration, consuming a small portion of its capacity to start up the engine.
It is not suited for repeated charge-discharge cycles as such services quickly wear out the battery l ife.
Deep-cycle lead-acid batteries are marketed for repeatedly discharge and recharge cycles as used in recreational vehicles, boats, and electric golf
carts. They are referred to as RV, marine, or golf-cart batteries.
It is recommended that deep-cycle batteries be separated from starting batteries by battery isol ators when using the
are solid-state electronic circuits available at marine/ RV dealers and m ost aut o-parts st ores. They all ow appliances be operated from auxiliary sources
without discharging the vehicle's battery and automatic al l y direct t he charge from the alternat or to the battery when the vehicle operates (See Figure 5
on page 11).
Sima STP-3000
. Battery isolators
B. Tips on Batteries
1 Lead-acid batteries emit hydrogen and oxygen gases, and sulfuric acid fumes when recharging. Vent the battery compartment to prevent
accumulation of these gases, and do not install electronic or electrical equipment in the battery compartment. Do not smoke or carry an open
flame when working around batteries.
2 The capacity of lead-acid batteries is temperature sensitive. Battery capacity is rated at 25°C (77° F). At –20° C (0°F) the ampere-hour
capacity will be about half the rated capacity.
3 Discharged batteries will undergo a “SULFATION" process, becoming permanently damaged. Recharge immediately within a day or two.
Batteries shall self-discharge in 3 to 6 months. Recharge periodically even if not in use.
4 Check the electrolyte fluid level once a month for batteries requiring maintenance and replenish with distilled water. Overcharging results in
excessive fluid loss.
5 Permanent connectors with reliable and low resistance connection must be made to the battery posts. Do not use "alligator" clips. Connections
must be regularly cleaned to prevent corrosion.
6 Check the battery states with a hydrometer or a voltmeter. Measure the (12-volt) batt ery a few hours after charging or discharging. For
deep-cycle batteries at 25°C (77°F), the following table may be used:
Table 4.
Sima STP-3000
Your
discharging duration (less than one hour) Immediate battery recharge is recommended.
Battery Voltage
State-of-Charge
may be connected directly to the vehicle starting battery only if it drives small loads (less than 250/300 watts) for short
12.7 ~ 12.9 12.5 ~ 12.6 12.3 ~ 12.4 12.1 ~ 12.2 11.9 ~ 12.0
100% 80% 60% 40% 20%
C. Alternators and Charging Systems
Battery health can only be maintained with good charging systems. Recharge your deep cycle batteries when they are 50% discharg ed so as to
ensure long battery life.
Heavy-duty high-output alternators are available from RV/marine dealers and auto-parts suppliers. They produce 100 to 140 amperes of current at
high voltages to charge multiple battery systems.
Page 5 of 14
Loading...