Cotek SE350 series User manual

SE350 Series
Pure Sine Wave Inverter
User's Manual
WWW.COTEK.COM.TW

Table of contents
1. Important Safety Information.……………………………………………….
1-1 General Safety Precautions……………………………………………
1-2 Precautions When Working with Batteries……….…………………..
2. Features……………………………………………………………………...….
2-1 Electrical Performance………………………………………………….
2-2 Mechanical Drawing …………………………………………………....
3. Instructions………………………………………………….……………….…
3-1 Front Panel Operation..………………………………………………...
3-2 Rear Panel Operation..…………………………………………………
3-3 Protections Features……..……………………………………………..
3-4 Installation.………………………………………………….…………...
3-5 Making DC Wiring Connections……...……………………………….
3-6 AC Safety Grounding…………………………………………………..
3-7 Inverter Operation……………………………………………………...
4. Troubleshooting guide……………………………………………………….
5. Maintenance………………………………………………………………….…
Copyright ：This manual is the copyright of COTEK Electronic lnd. Co., Ltd. Be not allowed to reproduc or copy
without permission of the owner.
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12
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14
15
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6. Warranty…………………………..………………………………………….… 17

1. Important Safety Information
WARNING!
Before installing and using the Inverter, you need to read
the following safety information carefully.
1-1. General Safety Precautions
1-1-1. Do not expose the Inverter to rain, snow, spray, bilge or dust.
To reduce risk of hazard, do not cover or obstruct the ventilation
openings. Do not install the Inverter in a zero-clearance compartment.
Over heating may result.
1-1-2. To avoid a risk of fire and electronic shock. Make sure that existing
wiring is in good electrical condition; and that wire size is not
undersized.
Do not operate the Inverter with damaged or substandard Wiring.
1-1-3. This equipment contains components which can produce arcs or
sparks. To prevent fire or explosion do not install in compartments
containing batteries or Flammable materials or in locations which
require ignition protected equipment. This includes any space
containing gasoline-powered machinery, fuel tanks, or joints, fittings,
or other connection between components of the fuelsystem.
1-2. Precautions When Working with Batteries
1-2-1. If battery acid contacts skin or clothing, wash immediately with soap
and water. If acid enters eye, immediately flood eye with running
cold water for at least 20 minutes and get medical attention
immediately.
1-2-2. Never smoke or allow a spark or flame in vicinity of batteryor engine.
1-2-3. Do not drop a metal tool on the battery. The resulting spark or
short-circuit on the battery of other electrical part may cause an
explosion.
1-2-4. Remove personal metal items such as rings, bracelets, necklaces,
and watches when working with a lead-acid battery,
A lead-acid battery produces a short-circuit current high enough to
weld a ring or the like to metal, causing a severe burn.
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2. Features
Pure sine wave output (THD < 3%@ linear load)
Output frequency：50 / 60Hz switch selectable
Output voltage / power saving mode selectable
Low power saving mode < 1W
Input & output completely isolated design
High efficiency
Capable of driving inductive & capacitive loads at the start moment.
A LED Indicator with twin color displays all operation status.
Loading and temperature controlled cooling fan.
Built in advanced microprocessor to make friendly interface with user.
Protection：Input low voltage Overload Short circuit
Low battery alarm Input over voltage Over temperature
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2-1. Electrical Performance
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Output Voltage 100 / 110 / 115 / 120 Vac ± 5% 200 / 220 / 230 / 240 Vac ± 5%
Frequency
Waveform
Surge Power
Rated Power 350W
700W
Pure sine wave ( THD<3% @ rated VDC, linear load )
50 / 60 Hz ± 0.1%
Input Voltage 12Vdc 24Vdc 12Vdc 24Vdc48Vdc 48Vdc
Input Voltage Range 10.0~15.5Vdc 20.0~31.0Vdc 40.0~62.0Vdc 10.0~15.5Vdc 20.0~31.0Vdc 40.0~62.0Vdc
On mode @ no load mode
On mode @ save mode
No load power consumption
Efficiency (@ rated Vdc. full) 87%
@12Vdc
< 90 mA
< 0.65A
88%
@24Vdc
< 60 mA
< 0.32A
89%
@48Vdc
< 40 mA
< 0.16A
89%
< 0.9A
@12Vdc
< 90 mA
90%
< 0.5A
@24Vdc
< 60 mA
91%
< 0.25A
@48Vdc
< 40 mA
Protections
BAT. High Restart
BAT. High Shut down
BAT. High Alarm
BAT. Low Restart
BAT. Low Alarm
BAT. Low Shut down 10V ± 0.25V
10.5V ± 0.25V
12V ± 0.25V
15V ± 0.25V
15.5V ± 0.25V
14.5V ± 0.25V
Overload, Short circuit, DC over / under voltage, Over temperature
20V ± 0.5V
21V ± 0.5V
24V ± 0.5V
30V ± 0.5V
31V ± 0.5V
29V ± 0.5V
40V ± 1V
42V ± 1V
48V ± 1V
60V ± 1V
62V ± 1V
58V ± 1V
10V ± 0.25V
10.5V ± 0.25V
12V ± 0.25V
15V ± 0.25V
15.5V ± 0.25V
14.5V ± 0.25V
20V ± 0.5V
21V ± 0.5V
24V ± 0.5V
30V ± 0.5V
31V ± 0.5V
29V ± 0.5V
40V ± 1V
42V ± 1V
48V ± 1V
60V ± 1V
62V ± 1V
58V ± 1V
Power Saving
Weight
Cooling
Dimension (WxHxD)
Safety Standards
EMC Standards
Working Humidity
Storage Temp.
Working Temp.
DC Input Reverse Polarity By fuse
-20°C ~ +60°C, please refer to SE350 power de-rating curve
-30°C ~ +70°C
Max. 90% RH non-condensing
---
---
Certified EN 60950-1
--- Certified CISPR 25; ISO 7637-2
Certified EN 55022 class B, EN 55024
EN 61204-3
EN61000-3-2, -3-3
EN61000-6-1, -6-3
IEC 61000-4-2, 3, 4, 5, 6, 8, 11
150x68x187 mm / 5.91x2.68x7.36 inch
E-Mark
Load (53±5%) and temperature (55±5°C) control fan
1.6 kg
With the dip switch in position 4 is on, power saving mode is active after 25 seconds
when the load is below 20W.
Note: The specifications are subject to change without notice.
MODEL SE350-112 SE350-124 SE350-148 SE350-212 SE350-224 SE350-248

2-2. M
SE350 de-rating curve:
echanical Drawing of Socket
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150 [5.91]
68 [2.68] 35.7 [1.41] 116.0 [4.57]
22 [0.87]
127 [5.00]
187 [7.36]
020 30 4035 45 5550 6025
200
250
300
350
400

3. Instructions
This power inverter series is a the member of the most advanced line of mobile
AC power systems available.
To get the most out of the power inverter, it must be installed and used properly.
Please read the instructions in this manual before installation and operation this
model.
3-1. Front Panel Operation：
3-1-1. ON / OFF / REMOTE Main Switch.
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3-1-2.Power Saving, AC Frequency& Output Voltage：
Selected by Dip Switch
Power Saving Dip Switch
ON
OFF
1
0
Frequency
50Hz
60Hz
Output Voltage S1 S2
Dip Switch
0
1
0
0
0
1
01
1
1
CAV002 )(CAV001
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CAV022 )(CAV011
CAV032 )(CAV511
CAV042 )(CAV021

3-1-3. Status：Display Power & Fault Status
Status LED Signal
Power on
Normal
Saving mode
O/P over load (100%~115%)
O/P short circuit
Over temperature
Shut down high battery
High battery
Low battery
Shut down low battery
*Note: LED Status G=Green R=Red O=Orange
G
O
R
G
G
R
R
R
O
R
R
O G
3-1-4. AC Output (available Sockets)：
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North America (GFCI) NEMA
5-15R Continental
Europe Australia
/ New Zealand
United Kingdom Universal IE France ConnectorC
‧Power on:Beep twice , LED shows green -> orange -> red -> green.
‧Normal:LED green light.
‧Saving mode:LED Flashing green light once every two seconds ,
shut down after 30 minutes.
‧O/P over load (100%~115%):LED red light , two short beep ,shut down after
30 seconds and restart 4 times .
‧O/P short circuit:LED red light , two short beep , shut down after two seconds and
restart 4 times.
‧Over temperature:LED Flashing red light quickly twice every 1.6 seconds.
‧Shut down high battery:LED Flashing red light quickly , shut down.
‧High battery:LED Flashing orange light quickly.
‧Low battery:LED Flashing orange light slowly and 5 short beeps every 15 sec.
‧Shut down low battery:LED Flashing red light slowly , shut down.

3-2. Rear Panel Operation：
3-2-1. Before installing the inverter, make sure the main switch must
be “OFF”.
3-2-2. Before using the remote unit, make sure the main switch must
be “ REMOTE”.
3-2-3. Ensure the remote control contact is off.
3-2-4. Remote Port：Place 0.75mm2 and Screw type cable between
the remote port and the panel.
3-2-5. Remote port ON/OFF inverter setup status
ENB
GND
ON:INV - ON
OFF:INV - OFF
MODE I
ENB
GND
H:INV - ON(TR-ON)
L:INV - OFF(TR-OFF)
MODE II
TR
VCEO>VBAT
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ON→INV - ON
OFF INV - OFF→
MODE III
ENB
GND
MODE IV
EXT PWR
BAT+
BAT-
RJ-11 Remote port for CR-8 (Remote controller)
*NOTE: Only one of control mode can be presented. When operating.
3-2-6. DC Input Terminals：
Connect to 12V / 24V / 48V battery or the other power sources.
【+】is positive, is negative.Reverse polarity connection
will blow internal fuse and may damage inverter permanently.
【-】
Model Minimum Maximum
62.0
15.5
10.0
40.0
20.0 31.0
12V
24V
48V
DC Input Voltage
3-2-7. Chassis Ground: using # 8 AWG wire to connect vehicle chassis.
WARNING!
Operation of the inverter without a proper ground
connection may result in an electrical safety hazard.
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ENB

Model Over Voltage Under Voltage
12V
24V
48V
DC Input (VDC)
3-3. Protections Features:
Shut-
down Restar
Under
Voltage
Alarm Shut-
down Restar
Over Temperature Protection
INTERIOR
Shut-down
15.5±
0.25V
31±0.5V
62±1V
14.5±
0.25V
29±0.5V
58±1V
10.5±
0.25V
21±0.5V
42±1V
10±0.25V
20±0.5V
40±1V
12±0.25V
24±0.5V
48±1V
83±5℃53±5℃
Restar
*Note: The specifications are subject to change without notice.
3-4. Installation：
Where to install. The power inverter should be installed in a location that
Meets the following requirements：
3-4-1. Dry – Do not allow water to drip or splash on the inverter.
3-4-2. Cool – Ambient air temperature should be between -20℃ and 40℃, the
cooler the better.
3-4-3. Safe – Do not install in a battery compartment or other areas where
flammable fumes may exist, such as fuel storage areas or engine
compartments.
3-4-4. Ventilated – Allow at least one inch of clearance around the inverter
for air flow. Ensure the ventilation openings on the rear and front
of the unit are not obstructed.
3-4-5. Dust – Do not install the Inverter in a dusty environments
where are dust, wood particles or other filings/shavings are present.
These dust can be pulled into the unit when the cooling fan is operating.
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3-4-6. Close to batteries – Avoid excessive cable lengths but do not install
the Inverter in the same compartment as batteries.
Use the recommended wire lengths and sizes (see section 3-5).
Also do not mount the Inverter where it will be exposed to the
gases produced by the battery.
These gases are very corrosive and prolonged exposure also will
damage the Inverter.
WARNING!
Shock Hazard. Before proceeding further, carefully
check that the Inverter is NOT connected to any
batteries, and that all wiring is disconnected from any
electrical sources. Do not connect the output terminals
of the Inverter to an incoming AC source.
3-5. Making DC Wiring Connections：
Follow this procedure to connect the battery cables to the DC input terminals
of the Inverter.Your cables should be as short as possible (Ideally,
less than 6 feet / 1.8 meters ) enough to handle the required current in
accordance with the electrical codes or regulations application. Cables are
not an adequate gauge (too narrow) or too long will decrease the inverter
performances such as poor surge capability and low input voltage warnings
frequently and shutdowns. UVP warning presents due to DC voltage drop
across the cables from the inverter to the batteries.
The longer or narrower the cables, the greater the voltage drop.
Increasing your DC cable size will help improve the situation.
Following cable recommendations for the best performance of inverter.
(Apply both 110V and 230V versions )
WARNING!
The installation of a fuse must be on positive cable.
Failure to place a fuse on “+” cables running between
the inverter and battery may cause damage to the
inverter and will void warranty.
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3-6. AC Safety Grounding：
The AC output ground wire should go to the grounding point for your loads
( for example, a distribution panel ground bus ).
3-6-1. Neutral Grounding (GFCI'S)：
3-6-1-1. 110V models：The neutral conductor of the AC output circuit
of the Inverter is automatically connected to the safety
ground during inverter operation. In accordance with the
National Electrical Code requirements that separately derived
AC sources (such as inverter and generators) have their
neutral conductors tied to ground in the same way that the
neutral conductor from the utility is tied to ground at the AC
breaker panel. For models configured with a transfer relay,
while AC utility power is presenting and the Inverter is in
bypass mode, this connection (neutral of the Inverter's AC
output to input safety ground) is not present so that the utility
neutral is only connected to ground at your breaker panel,
as required.
3-6-1-2. 230V models：There is no connection made inverter interior
between either the line or neutral conductor to the safety ground.
WARNING!
Risk of electronic shock. Use only Pass and Seymour, type
2095-W or 7899-W, ground – fault circuit-interrupter
receptacles. Others may fail in operating the inverter when
connecting to the inverter's equipment.
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Ground Fault Circuit Interrupters (GFCI)：
Installations in Recreational Vehicles (for North American approvals) will
require GFCI protection of all branch circuit connected to the AC output of
the hardwire terminal equipped Inverter.In addition, electrical codes
require GFCI protection of certain receptacles in residential installations.
While the pure sine wave output of the Inverter is equivalent to the
waveform provided by utilities, compliance with UL standards requires us to
test and recommend specific GFCI.
Cotek has tested the following GFCI – protected 20A receptacles and found
that they functioned properly when connected to the output of the Inverter.
3-7. Inverter Operation：
To operate the power inverter, turn the main switch ON. The power inverter
is now ready to deliver AC power to your loads. If there is several loads use,
turn them on separately after the inverter has been “ON” in order to prevent
the OVP present caused by the surge power.
3-7-1. Set the power switch to the “ON” position and the buzzer will send
out “Beep” sounds at the moment the inverter will do self-diagnosis,
then the Power Status LED indicators will also appear various colors.
Finally the buzzer will sound another “Beep” and the Power Status
LED indicators will turn to “Green” color, the inverter starts working
successfully.
3-7-2. Set the power switch to the OFF position, the inverter stops and all
the lights that are On, go Off.
3-7-3. Set power inverter switch to the ON position and turn the test load
On. The inverter should supply power to the load. If you plan to
accurately measure the true output r.m.s. voltage of inverter, a meter
such as FLUKE 45 BECKMAN 4410 or TRIPLETT 4200 must be
used.
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4. Troubleshooting guide：
WARNING!
Do not open or disassemble the Inverter.
Attempting to service the unit yourself may result in a
risk of electrical shock or fire.
Problems and Symptoms Possible Cause Solutions
“No AC Power Output”
STATUS illuminates the red LED
a. Blinking fast Over input voltage.
( OVP ) Check input voltage.
Reduce input voltage.
b. Blinking slow. Low input voltage.
( UVP ) Recharge battery.
Check connections
and cable.
c. Blinking Intermittently. Thermal shutdown.
( OTP )
Improve ventilation.
Make sure ventilation
openings in inverter
are not obstructed.
Reduce ambient
temperature.
d. Solid ON. Short circuit or Wiring
error.
Overload.(OLP)
Check AC wiring for
short circuit.
Reduce load.
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5. Maintenance：
Very little maintenance is required to keep your inverter operating properly.
You should clean the exterior of the unit periodically with a damp cloth to
prevent accumulation of dust and dirt.
At the same time, tighten the screws on the DC input terminals.
6. Warranty：
We warrant this product against defects in materials and workmanship for a
period of 36 months from the date of purchase and will repair or replace any
defective Power Inverter when directly returned, postage paid, to us.
This warranty will be considered void if the unit has suffered any obvious
physical damage or alteration either internally or externally and does not
cover damage arising from improper use such as plugging.
The unit into an unsuitable power sources attempts to operate products with
excessive power consumption requirements, or use in unsuitable environments.
This is the only warranty that the company makes.
No other warranties express or imply including warranties of merchantability
and fitness for a particular purpose.
Repair and replacement are your sole remedies and the company shall not be
liable for damages, whether direct, incidental, special or consequential, even
though caused by negligence or other fault.
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No. 33, Sec. 2, Renhe Rd., Daxi Dist., Taoyuan City 33548, Taiwan
Phone：[phone] FAX：[phone]
2015-12-A3
E-mail：[e-mail] http：// www.cotek.com.tw