Page 1
SR1000 / SR1000T
User’s Manual
Telecom / Datacom
PURE SINE WAVE INVERTER
Page 2
Page 3
Table of Content
1. IMPORTANT SAFETY INSTRUCTIONS 1
1-1. General Safety Precautions 1
1-2. Other Safety Notes 1
1-3. Rack-Mounted Installation 2
2. FUNCTIONAL CHARACTERISTICS INTRODUCTION 3
2-1. System 3
2-2. Block Diagram 4
2-3. Electrical Performance 5
2-4. Mechanical Drawings 6
3. INSTALLATION AND MAINTENANCE 8
3-1. Rear Panel 8
3-2. Front Panel 14
3-3. Maintenance 14
4. OPERATION 15
4-1. Connecting the input power 15
4-2. Connecting the loads 15
4-3. Inverter Operation 15
4-4. Protections Features 15
5. FRONT LCD PANEL – DISPLAY & SETUP 16
5-1. LCD Panel Indications 16
5-2. Startup Sequence and Standby Status 17
5-3. Setup Menu – Operation and Instructions 18
6. RS-232 COMMUNICATION AND OPERATION 22
6-1. Operation of RS-232 Serial Port 22
6-2. Interface Commands 23
6-3. Example of the RS-232 Operation 23
7. INFORMATION 28
7-1. Troubleshooting 28
7-2. Warranty 28
Page 4
1. Important Safety Instructions
WARNING!
SAVE THESE INSTRUCTIONS – This manual contains important
instructions that should be followed during installation and maintenance of
the inverter.
1-1. General Safety Precautions
1-1-1. Do not expose the inverter to rain, snow, spray or dust.
To reduce the risk of fire hazard, do not cover or obstruct the ventilation
openings and. do not install the inverter in a zero clearance compartment.
1-1-2. To avoid the risk of fire and electric shock, make sure that the existing wiring
is in good electrical condition; and that the wire size is not undersized.
Do not operate the inverter with damaged or substandard wiring.
1-1-3. Depending on the use, the AC output of the inverter may require user installed
breaker or fusing. For telecom use, a GFCI has not been provided. The
inverter incorporates standard AC short circuit protection.
1-1-4. The following precautions should be taken when working on the inverter
z Remove watches, rings, or other metal objects.
z Use tools with insulated handles.
z Wear rubber gloves and boots.
1-1-5. If one of the following situations arises, get the equipment checked by service
personnel
z Liquid has penetrated into the equipment.
z The equipment has been exposed to moisture.
z The equipment has not work well or you cannot get it work according to
user manual.
z The equipment has dropped and damaged.
z If the equipment has obvious sign of breakage.
1-2. Other Safety Notes
1-2-1. Upon receipt, examine the shipment box for damage. Notify the carrier
immediately, before opening, if damage is evident.
1-2-2. Do not operate near water or in excessive humidity.
1-2-3. Do not open or disassemble the inverter, warranty may be voided.
1-2-4. The DC side connections should be firm and tight.
1-2-5. Grounding
maintained.
1
Reliable grounding of rack-mounted equipment should be
Page 5
1-2-6. Do not drop a metal tool on the battery. The resulting spark or short circuit on
the battery or on the other electrical part may cause an explosion.
1-2-7. Install the inverter in a well-ventilated area. Do not block the front air vents, or
the rear air exhausts of the unit.
1-2-8. Wiring
correct wiring sizes must be ensured.
1-2-9. Mount the inverter such that the fan axis is horizontal.
1-2-10. Do not operate the inverter close to combustible gas or open fire.
1-2-11. Do not operate appliances that may feed power back into the inverter.
1-2-12. Temperature
range of 0
the inverter must not be restricted.
Adequate input power must be supplied to the inverter for proper use;
The inverter should be operated in an ambient temperature
to 50 or else the output efficiency may be affected. Air flow to
1-3. Rack-Mounted Installation
Rack-Mounted Equipment – The unit is intended to be rack-mounted, the installation
instructions shall contain wording to address the following concerns when the unit is
mounted in a rack system.
1-3-1. The equipment is to be installed in an environment with maximum ambient
temperature must not exceed 50
1-3-2. The openings on the enclosure are for air convection hence protected the
equipment from overheating. DO NOT COVER THE OPENINGS.
1-3-3. Lay this equipment on a reliable surface when install. A drop or fall could
cause injury.
1-3-4. The equipment shall be installed according to specification as nameplate.
Make sure the voltage of the power source when connect the equipment to
the power outlet. The current of load and output power of loads shall be not
over the specification.
1-3-5. This equipment must be connected to the reliable earthing before using.
1-3-6. "Equipment intended for installation in Restricted Access Location" and Input
DC terminal at back of Rack to prevent qualified service personnel can be
touch.
.
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2. Functional Characteristics Introduction
2-1. System
The unit is a highly reliable DC-AC inverter system, designed with advanced power
electronic and microprocessor technology offering the following features
z The inverter is equipped with a self diagnosis microprocessor that is able to
identify and show all failure messages on the LED/LCD display, with associated
visual/audio alarms.
z 1U height x 19” width x 13.6” depth, 19” rack mountable.
z Pure sine wave output (THD < 2%) to operate higher-end electronic equipment.
z Built in 15A(120VAC) and 10A(250VAC) rated Bypass relay.
z Speeds up transfer time as a result of synchronized operation with the AC
source at all times that allows the transfer to be interruption-free for sensitive
equipment.
z Intelligent software for power management.
z Hard-wire and Dual AC outlets connection model option.
z Loading and temperature controlled cooling fan.
z Fan aging, failure, disconnection and blockage alarm.
z Selectable Bypass/Inverter modes.
z Local and remote management and control.
z RS-232 communication.
z Dry contact terminal.
z Efficiency >90%. (Full linear load at 220VAC Output)
z Advanced Protection Features
¾ Input over/under voltage protection.
¾ Internal over temperature protection.
¾ Input reverse polarity protection (Fuse).
¾ Output overload protection.
¾ Output short circuit protection
¾ AC input short circuit protection
Breaker (6 Amp or 12 Amp)
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Page 7
2-2. Block Diagram
The inverter features IGBT technology which, minimizes weight and dimension,
while enhancing output short circuit reliability and overload capacity.
AC output voltage is provided in one of the two following modes
1. From DC to AC Inverter Mode (On-line Mode)
2. From AC Input Bypass Mode
Either mode is front panel programmable.
In the first option, Off-line mode, AC output power will be supplied through the AC
bypass mode in its normal operation. Upon AC input failure, output power will be
diverted through the DC to AC Inverter Mode. Once AC mains are restored, the unit
will revert from the Inverter Mode to the Bypass Mode.
In the second option, On-line mode, AC output power will be provided directly by the
inverter from the DC source. Should the DC source or inverter fail, the system will
transfer its output power through the bypass mode. Once the DC power source is
restored, the system will revert to the inverter mode.
(Off-line Mode)
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Page 8
2-3. Electrical Performance
Electrical
Output
Input
Signal and
Control
Protection
Bypass Relay
Environment
Safety & EMC
Fan Operation
& Indicator
Others
Note The specifications are subject to change without notice.
Specification Model No.
Item SR1000(T)-124 SR1000(T)-148 SR1000(T)-224 SR1000(T)-248
Continuous Output Power 1000W
Maximum Output Power
(3 Min)
Surge Power 2000W
Frequency 47~63Hz ± 0.5% (User-selectable)
Output Voltage 97~123VAC (User-selectable) 194~246VAC (User-selectable)
Efficiency (Full Load) 87% 88% 90% 91%
Short-Circuit Protection Yes, lpk
Output Waveform Pure Sine Wave (THD<2%)
Voltage 24VDC 48VDC 24VDC 48VDC
Input Over-Voltage Protection 30~34VDC
Input Under-Voltage Protection 18~22VDC 36~44VDC 18~22VDC 36~44VDC
Voltage Range 18~34VDC
No Load Current 1.4A 0.75A 1.3A 0.7A
LCD Panel 2 Lines LCD panel with keypad for navigation
LED Indicator Red / Orange / Green LED
Dry Contact Terminal By a relay
Remote Control Terminal Controls the inverter ON / OFF operation
Input Protection Over / Under voltage, reverse polarity (Internal fuse)
AC Output Protection Short-circuit, overload
AC Input Protection 12 Amp circuit breaker 6 Amp circuit breaker
Temperature Protection Shutdown (Internal temperature 65 )
Relay Specification 15 Amp / 120VAC, 10 Amp / 250VAC
Bypass relay selectable On Line / Off Line (Haphazard, Normal, Exacting) selectable
Switching Time
Working Temp.(Full load) 0
Storage Temp. -30 ~ 70
Safety Standards Certified UL 60950-1 Certified EN 60950-1
EMC Standards Certified FCC class B
Failure Indicator Buzzer alarm and dry contact
Switches On When Internal Temperature 55 or Load 30%
Switches Off When Internal Temperature 45 and Load 20%
Dimension (WxHxD) 483 x 44 x 395 mm / 19.02 x 1.73 x 13.55 inch
Packing 7.46kg; 2pcs / 15.9kg / 1.74 CUFT
Application
From DC to AC inverter mode (On-line mode)
Focus on telecommunication (base-station), networking (data center) &
60VDC Max.
From AC bypass mode (Off-line mode)
1100W
60~68VDC
(Only UL)
36~68VDC
36~60VDC
(Only UL)
~ 50
battery backup system.
30~34VDC
18~34VDC
Certified EN55022, EN61000-3-2,
EN61000-3-3, EN55024,
IEC61000-4-2,3,4,5,6,8,11
60~68VDC
60VDC Max.
(Only UL)
36~68VDC
36~60VDC
(Only UL)
20mS
8mS
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Page 9
2-4. Mechanical Drawings
Unit mm [inch]
2-4-1. SR1000 Mechanical Drawings
420 [16.54]
< SR1000 110V
< SR1000 220V
21.8
[0.86]
24.0 [0.94]
5.9 [0.23]
31.8
[1.25]
44 [1.73]
39.3 [1.55]
465.0 [18.31]
483 [19.02]
39.3 [1.55]
345 [13.58]
R3.5 [R0.14]
10.0 [0.39]
121.0 [4.76] 92.0 [3.62] 92.0 [3.62]
6-M3
345 [13.58]
395 [15.55]
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2-4-2. SR1000T Mechanical Drawings
420 [16.54]
< SR1000T 110V
< SR1000T 220V
21.8
[0.86]
121.0 [4.76] 92.0 [3.62]92.0 [3.62]
6-M3
24 [0.94]
345 [13.58]
395 [15.55]
39.3 [1.55]
44 [1.73]
31.8 [1.25]
5.9 [0.23]
SR Series Inverter Ordering Information
Model Number
SR1000/SR1000T-124 24 VDC 110 VAC 100~120 VAC 47~63 Hz
SR1000/SR1000T -224 24 VDC 230 VAC 200~240 VAC 47~63 Hz
SR1000/SR1000T -148 48 VDC 110 VAC 100~120 VAC 47~63 Hz
SR1000/SR1000T -248 48 VDC 230 VAC 200~240 VAC 47~63 Hz
7
465.0 [18.31]
483 [19.02]
Input
Voltage
Output Voltage
Nominal
39.3 [1.55]
Output Voltage
Range
R3.5 [R0.14]
Ø7.0 [Ø0.28]
10.0 [0.39]
Frequency
Range
Page 11
3. Installation and Maintenance
3-1. Rear Panel
SR1000
1 2 3 4 5 6 7 8 9
SR1000T
2 3 4 5 6 7 8 9
1
No. Description No. Description No. Description
① DC Input Negative(-) ④ Dry Contact Terminal ⑦ AC Output Socket
② DC Input Positive(+) ⑤ Standard RS-232 ⑧
Remote Contact
③
Terminal
3-1-1. DC Input Connection ①②
Follow the instructions to connect the battery cables to the DC input terminals of
the inverter. The cables should be as short as possible (less than 6 feet / 1.8
meters ideally) so that they can handle therequired current in accordance with the
Electrical Codes and Regulations. The size of the cable should be thick enough to
limit the voltage drop to less than 2% when carrying the maximum input current
to prevent freque
nt low-input voltage warnings, an
Voltage Protection) warning may result if there is excessive voltage drop across
the DC cables between the batteries and the inverter. Increasing your DC cable
size will help improve the situation.
⑥ Chassis Ground ⑨ AC Output Breaker
d shutdown. UVP (Under
AC Input Socket /
AC Input Terminal
Batteries are capable of providing very large currents in case of short circuit. In
case there is a short circuit in the cable run between the batteries and the input
terminals of the inverter, it will result in over
heating / melting of the cables and
consequent risk of fire and injury, To prevent possibility of this hazard, use Very
Fast Acting DC Fuse in line with the positive cable. The fuse should be as close to
the positive battery terminal as possible. Use Bussmann ANN series fuses
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Page 12
( will also require Fuse Block 4164) or equivalent.
The following sizes of cables and fuses are recommended for up to 6 ft. distance
between the batteries and the inverter. (Applies to both 120 VAC and 230 VAC
versions)
Model No. Wire AWG Inline Fuse
A 084 #422 / 421-T0001RS/0001RS
A 046 #842 / 841-T0001RS/0001RS
Connect DC input terminals to 24V / 48V battery or other DC power source.
[ + ] is positive, [ - ] is negative. Reverse polarity connection can blow the
internal fuse and may damage the inverter permanently.
WARNING!
Make sure that all the DC connections are tight (torque to 9 – 10 ft-lbs,
11.7 – 13 Nm). Loose connections could result in overheating and can be
a potential hazard.
M8 SCREW
PVC WIRE
RING
NEGATIVE -
TERMINAL
(AWG#4 - #6)
RING
TERMINAL
POSITIVE +
PVC WIRE
(AWG#4 - #6)
WARNING!
The recommended inline fuse should be installed as close to the battery
positive terminal as pos
sible Failure to use a fuse on the “+” cable running
between the inverter and battery may cause damage to the cable /
inverter and will void warranty.
Also, only use high quality copper wire and keep the cable length short which is a
maximum of 3 - 6 feet.
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Page 13
NEGATIVE -
POSITIVE +
INLINE FUSE
B
A
T
TE
R
Y
3-1-2. Remote control and Dry contact terminal ③④
Remote Control Terminal Dry Contact Terminal
NO
COM.
ENB
NC
GND
ENB
RELAY
GOUND
ENABLE -
ENABLE +
Normally Open
Common
Normally Closed
Remote Control Terminal ③
1. Before installing the inverter, ensure that the main switch “OFF”.
2. Before using the remote function, ensure that the main switch pressed
toward “REMOTE”.
3. Ensure that the remote contacts are off.
4. Use 20 ~ 24 #AWG wire to connect the remote control terminals.
5. Remote control ON/OFF inverter setup status
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Page 14
ENB
ENB
ENB
GND
TR
HI : INV. ON (TR ON)
LOW : INV. OFF (TR OFF)
ON : INV. ON
OFF : INV. OFF
+
DC
POWER
-
GND
ENB
ON : INV. ON
OFF : INV. OFF
BAT+
BAT-
ON : INV. ON
OFF : INV. OFF
GND
Note At one time, only one remote function should used to control the inverter.
The maximum voltage value is 60VDC.
Dry Contact Terminal Relay
tcatnoc nommoC.MOC
tcatnoc desolc yllamroN.C.N
tcatnoc nepo yllamroN.O.N
Dry Contact Terminals ④
Dry contact terminals may be connected to a Form C relay for “FAULT”
indication. When “FAULT” occurs, the relay switches.
Fault conditions include Input under/over voltage, Output Short Circuit,
Note
Over Temperature, Over-load and, Fan Failure.
Specifications of the Relay
Maximum
Voltage
Load
Contact Rating
N.O. N.C.
Number of
operations
Operating/Storage
Temperature
240 VAC Resistive 16 A ─ 100,000
240 VAC Resistive ─ 8 A ─
30 VDC Resistive 16 A ─ ─
-30
~70
30 VDC Resistive ─ 8 A ─
3-1-3. Standard RS-232 ⑤ Serial port monitoring and control through computer
interface.
3-1-4. Chassis Ground
⑥ Must be connected to earth ground prior to making any
other connections to the equipment.
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3-1-5. AC output socket ⑦
110VAC
230VAC
NEMA I.E.C 60320 C13
3-1-6. AC wiring connections ⑧
SR1000：AC socket
L
FG
N
AC output receptacles
or
for 120VAC version
N
L
AC output sockets for 230VAC
(IEC 60320 C 13 receptacles)
(NEMA5-15R)
FG
output version
N
L
SR1000T AC input and AC output terminal
TRANSFER RELAY
BYPASS RELAY
AC INPUT
BREAKER
INVERTER
"L"
RL3
RL2
INVERTER
"N"
AC Input Receptacle
(IEC 60320 C 14)
FG
L N
FG
AC OUTPUT / N
(LOAD)
AC OUTPUT / L
CASE
GND
INVERTER / L
INVERTER / N
AC INPUT
BREAKER
CONNECTOR
AC INPUT / N
(GRID)
AC INPUT / L
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Page 16
z Connect AC input wiring to the inverter socket.
Please use the following information as your reference.
SR1000 Version
Socket
AC Output
AC Input
Chassis Ground Green / Yellow or Bare copper
Line (L)
Neutral (N)
Line (L)
Neutral (N)
Wire color
120 VAC 230 VAC
NEMA I.E.C C13
I.E.C C14
Wire length / gauge
Within 16 feet / AWG # 14~16
26~32 feet / AWG # 12~14
Note Please double check and review all the connections to ensure that the wires
are connected to the correct inlet.
SR1000T Version
Socket
AC Output
AC Input
Chassis Ground Green / Yellow or Bare copper
Line (L) Black Brown
Neutral (N) White Blue
Line (L) Black Brown
Neutral (N) White Blue
Wire color
120 VAC 230 VAC
Wire length / gauge
Within 16 feet / AWG # 14~16
26~32 feet / AWG # 12~14
Note Please double check and review all the connections to ensure that the wires
are connected to the correct terminals and that the connections are tight.
3-1-7. AC input breaker
⑨
The AC input circuit breaker protects the unit from overload. When an overload
condition occurs, the circuit breaker trips and disconnects the AC grid power input.
To reset it, push the circuit breaker button. The cause of tripping should be
ascertained and corrected before the unit is reset .
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3-2. Front Panel
A B
C D
E
No. Description No. Description No. Description
A
Main Switch
B
LED Indicators
3-2-1. Main Switch
A
C
LCD Display
D
LCD Display Selection Buttons
E
Fan Ventilator
These are the 3-stage rocker switches for turning on, turning
off and remote mode.
B
3-2-2. LED Indicators
3-2-3. LCD Display Selection Buttons
See details in Section 5-1.
D
Data pertaining to the DC input voltage, AC output voltage, AC output
frequency, AC output current, etc. and system status can be shown
sequentially on the LCD display by pressing these buttons. Please refer to
chapter 5 for more information.
E
3-2-4. FAN Ventilation
The fans behind the ventilation grilles provides cooling.
DOT NOT obstruct these vents!
3-3. Maintenance
3-3-1. Make sure that the fan vents are not blocked.
3-3-2. Use a vacuum cleaner to remove any dust from the fan area.
3-3-3. When cleaning the case or front panel, use a soft, dry cloth, only. If the case
or front panel is very dirty, use a neutral, non-abrasive detergent. Do not use
alcohol or ammonia based solutions.
3-3-4. Regular service, and relocation of the inverter, should be performed by a
qua
lified service technician.
3-3-5. Avoid spilling liquid on the inverter.
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Page 18
4. Operation
4-1. Connecting the input power
Before making the DC input side connections, the main switch must be “OFF”.
4-2. Connecting the loads
z Calculate the total power consumption(W) of the output load. Make sure that the
total power consumption does not exceed the rated load.
z Should the total load exceed the rated capacity of the inverter, remove the
non-critical loads until the rated total has been reached.
4-3. Inverter Operation
z Set the power switch to the “ON” position. The buzzer will sound “beep beep”. The
inverter will carry out self-diagnosis and the LED will also appear various colors.
At the same time the LCD will display ”SR-1000 INVERTER INITIALIATION.”.
Finally, the buzzer will sound another “beep” and the “INVERTER” and status LED
will turn “Green”. The LCD Display will display “Vi, Vo, FQ, Io“.
The inverter will start operating normally.
z Set the power switch to the “OFF” position. THE, inverter stops and all the lights
that are on will, go off.
4-4. Protections Features
Model
24V 30.1~34.1 28~32 19~23 18.1~22.1 23~27
48V 60.1 56~60 38~46 36.1~44.1 46~54
Over Voltage Under
Shut-down Restart Shut-down Restart Shut-down Restart Shut-down Restart
DC Input (VDC) Over Temperature Protection
Voltage
Alarm
Under Voltage INTERIOR HEAT SINK
65
45 105 75
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5. Front LCD Panel – Display & Setup
5-1. LCD Panel Indications
5-1-1. Set the Power Switch to the “ON” position. THE, inverter starts working
normally. The inverter will be operating in normal condition when either of the
following messages are displayed on the LCD screen
Vi =24.0 Vo=115
FQ=60.0 Io =8.5
LED
INDICATORS
LCD
DISPLAY
LCD DISPLAY
SELECTION BUTTONS
5-1-2. LED Indications
AC GRID Displays AC input status.
AC Input LED Status
AC input and DC-AC Inverter Output are Synchronous Green
egnarONO tupni CA
ffOFFO tupni CA
Note Synchronous means that the grid AC input frequency and DC-AC inverter
output frequency or phase are the same (See details in Section 5-3-3).
INVERTER Displays DC-AC inverter status.
DC-AC Inverter LED Status
Power OK Green
Power Not Good Red
BYPASS Displays Bypass relay status.
Bypass LED Status AC Output (Load)
From DC-AC inverter
(On-line Mode)
From AC input bypass
(Off-line Mode)
Orange AC Input
Off DC-AC Inverter
Green AC Input
Off DC-AC Inverter
ALARM Displays status of the Failure Alarm.
Alarm LED Status
egnarOmralA NAF/mralA rednU/revO
Set alarm in the inverter to operate normally off
Note For instructions on setting the alarm, see details in Section 5-3.
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Page 20
5-1-3. LCD Display Selection Buttons
Function of Various Keys
Function <Up> You can use the “up” button to scroll through the menus.
or to select the value for set up under setting mode.
Function <Page Up>
You can use the “Page Up” button to scroll through
the menus.
Function <Page Down>
You can use the “Page Down” button to scroll
through the menus.
Function <Enter Setup Menu>
Press the button longer than 2 seconds,
the inverter will change to “Setup Menu Mode” which appears on the LCD
screen for the user to set functions.
Function <Enter>
5-1-4. LCD Display
Displays inverter’s operational status.
Confirms a selection or value.
5-2. Startup Sequence and Standby Status
5-2-1. Once turn on the inverter, the display shows “SR-1000 INVERTER
INITIALIATION.”, then checks the inverter.
Status flow is as follows
POWER SWITCH
LCD OFF
ONOFF
SR-1000 INVERTER
INITIALIATION ..
17
FAILURE
Vi =XX.X
UVP Shutdown
OVP Shutdown
OTP Shutdown
OLP Shutdown
OR
Vi =XX.X
OR
Vi =XX.X
OR
Vi =XX.X
CHECK INVERTER
OK
Vi =XX.X Vo=XXX
FQ=XX.X Io =X.X
ALARM
Vi =XX.X Vo=XXX
FQ=XX.X Io =X.X
Alert:
Undervoltage!!
OR
Alert:
Overload!!
OR
Alert:
Fan Failure!!
1Sec
Exchange
Page 21
5-3. Setup Menu – Operation and Instructions
Entering Setup Menu
Press Button longer than 2 seconds. The inverter, enters the Setup Menus
consisting of three layers
(1)Select Menu Heading (2)Select Menu Item (3)Setting Value
Main Menu:
Vi =XX.X Vo=XXX
FQ=XX.X Io =X.X
Select
Menu:
Function
Code:
Select
Setting
Value:
Select Menu:
User interface
0 1 2 3 4 6 7 8 9 10 11 12 13 14 15
Item:
Select Item:
LCD Contrast:
LCD Contrast
50%
:
LCD Auto-off
Select Item:
120S
LCD Auto-off:
Buzzer Setting
RS232 Baudrate
Select Item
Select Item:
Select Item:
4800
MSG , Alert , SHDN
Alert Setting:
Buzzer Setting:
RS232 Baudrate:
5-3-1. User interface (Select Menu)
0). LCD Contrast Sets LCD screen contrast.
Default=50%
Setting Range= 0%~100%
1). LCD Auto-off
Default=120 seconds.
Setting Range= Disable~250 seconds.
2). RS-232 Baud-rate
Default=4800
Setting Range= 1200/2400/4800/9600
3). Buzzer Setting
When setting, the LCD screen display, Buzzer “ON”, Buzzer “OFF”.
Default=MSG, Alert, SHDN
Setting Range= Disable / Shutdown / Alert/ Alert, SHDN / Message / Message,
SHDN / Message, Alert / MSG, Alert, SHDN
Alert Setting
Alert , SHDN
Select Menu:
I/P Parameter
OVP Setting
OVP Recovery
Select Item:
Select Item:
30.00V
32.00V
OVP Setting:
OVP Recovery:
UVP Setting
UVP Recovery
Select Item:
Select Item:
25.00V
20.00V
UVP Setting:
UVP Recovery:
:
Select Item
UV Alarm:
UV Alarm
21.00V
Select Menu:
O/P Parameter
O/P Voltage
O/P Frequency
Select Item:
Select Item:
230V
50.00Hz
O/P Voltage:
O/P Frequency:
:
Sync Frequency
Select Item
7.00Hz
Sync Frequency:
Sets LCD auto off timer.
Sets standard RS-232 Baud-rate.
Sets the internal buzzer sound ON/OFF.
Select Menu:
RST to default
Bypass relay
Overload Alarm
Select Item:
Select Item:
100%
On-line
Bypass relay:
Overload Alarm:
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Page 22
Menu Status Buzzer
Message Power ON or Push Keypad ON
Alert FAN Fail or UV Alarm or Overload Alarm ON
Shutdown OVP or UVP or OLP or OTP ON
Disable Any OFF
4). Alert Setup When alert occurs, the internal Dry Contact Relay will open /
close. (See details in Section 3-1-6)
Default= Alert, SHDN
Setting Range= Disable / Shutdown / Alert / Alert, SHDN
Menu Status Relay
Alert FAN Fail or UV Alarm or Overload Alarm ON
Shutdown OVP or UVP or OLP or OTP ON
Disable Any OFF
5-3-2. I/P Parameter (Select Menu)
6). OVP Setting Sets the Over Voltage Protection (OVP) and shutdown.
Default= 34 VDC for 24V Model, 60 VDC for 48V Model
Model Setting Value Range
24 V 30 VDC ~ 34 VDC
48 V 60 VDC MAX.
7). OVP Recovery When the DC input voltage is higher than the OVP setting, the
inverter shuts-down; Once the input voltage falls below the set OVP value, the
inverter will automatically restart.
Default= 30 VDC for 24V Model, 56VDC for 48V Model
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Model Setting Value Range
24 V 28 VDC ~ 32 VDC
48 V 56 VDC ~ 60 VDC
8). UVP Setting Setting the inverter’s Under Voltage Protection (UVP) and
Shutdown.
Default= 18 VDC for 24V Model, 36 VDC for 48V Model
Model Setting Value Range
24 V 18 VDC ~ 22 VDC
48 V 36 VDC ~ 44 VDC
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9). UVP Recovery When the DC input voltage is below the set UVP value the
inverter shuts-down; Once the input voltage rises above the set UVP value, the
inverter will automatically restart.
Default= 25 VDC for 24 V Model, 50 VDC for 48 V Model
Model Setting Value Range
24 V 23 VDC ~ 27 VDC
48 V 46 VDC ~ 54 VDC
10). UV Alarm Sets Under Voltage (UV) alarm. When the input voltage is lower
than the set value, the unit will sound “beep” to remind that the unit is going to
shutdown. At the meantime, the contact in the internal Dry Contact Relay will
open / close (See details in Section 3-1-6).
Default= 21 VDC for 24V Model, 42 VDC for 48V Model
Model Setting Value Range
24 V 19 VDC ~ 23 VDC
48 V 38 VDC ~ 46 VDC
Note The value of voltage set for the “UV Alarm” should be equal to or higher
than the value set for “UVP” or else the unit will shut down without any audible
warning.
5-3-3. O/P Parameters
11). O/P Voltage Set the inverter output voltage.
Default= 110 VAC for 110V Model, 230 VAC for 220V Model
Model Setting Value Range
110V 97 VAC ~ 123 VAC
220V 194 VAC ~ 246 VAC
12). O/P Frequency Set the inverter output frequency.
Default= 60 Hz for 110V Model, 50 Hz for 220V Model.
Model Setting Value Range
110V 47 Hz ~ 63 Hz
220V 47 Hz ~ 63 Hz
13). Sync Frequency Sets the AC output synchronous frequency.
Example
AC input= 230 VAC / 50Hz,User setting Value= 7Hz
When the DC to AC inverter “Frequency” is within The Range of 43 Hz~57 Hz,
the internal bypass relay will operate normally. When the “Frequency” is less
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than 43 Hz or more than 58 Hz, the internal bypass relay will de-energize.
(See details in Section 2-2)
Default= 0.1Hz ~ 7Hz.
Model Setting Value Range
110V 0.1 Hz ~ 7 Hz
220V 0.1 Hz ~ 7 Hz
14). Bypass Relay The setup is provided in one of the following two ways On
line Mode or Off line Mode (Exacting, Normal, Haphazard).
Default= Normal (Off line).
Mode Menu Bypass Relay Switching Feature
The bypass relay will switch “ON” or “OFF”
based on conformance to, the Phase and
Sync Frequency window that has been set
(Function Code 13)
The bypass relay will be “ON” if AC input
(Grid) power is available. The DC-AC
inverter will remain synchronized and Phase
with the incoming AC power (Grid). The
relay will NOT switch off if the grid
frequency is beyond the range set under
Sync Frequency window (Function Code
13).
The bypass relay will switch “ON” or “OFF”.
Conformance to, phase and frequency
synchronization will not be considered.
(See details in Section 5-3)
OFF LINE
(See details in Section
5-3)
ON LINE
Exacting
Normal
Haphazard
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15). Overload Alarm Sets the overload alarm. When the output power is higher
than the set value, the unit will sound “beep”to remind that the unit is going to
shutdown. At the same time, the internal Dry Contact Relay will open/close
(See details in Section 3-1-6).
Default= 100%
Setting range= 50%~110%
6. RS-232 Communication and Operation
6-1. Operation of RS-232 Serial Port
6-1-1. This unit uses a standard 9-Pole D connector and three of the RS-232 signal
lines
Signal description PIN
N.C 1
RXD 2
TXD 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
N.C 9
1 2 3 4 5
6 7 8 9
6-1-2. The connection between this unit and the computer is as follows
Computer
RXD
GND
DTR
DSR
RTS
CTS
Power Inverter
RXD
DXTDXT
GND
6-1-3. The RS-232 interface of this unit employs ASCII code to implement the
asynchronous serial transmission control.
The byte structure is START-BIP – 8 BIT DATA-STOP BIT.
Baud rate
1200/2400/4800/9600(See details in Section 5-3-1).
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6-1-4. Coupled with PC software application port. Operation is as detailed in Section
6-2.
6-2. Interface Commands
The buffer size used for the RS-232 port is 12-byte. This unit will ignore all bytes
more than this value. During transmission, this unit will indicate it is ready to receive
data from computer by this DTR line. A computer has to check the DTR line before
sending any information to this unit. This unit is normally always ready to receive
data while operating. When a LF character (ASCII code 0AH) is received, this unit
would finish the receiving by clearing the DTR status and begin to interpret the
received information. The unit would execute the received command (AND/OR data)
if it is correct. Irrespective of whether the command is accepted or not, the unit will
always send back a response signal to the computer and set DTR to ready for
receiving more incoming information.
6-2-1. The Baud-rate of the RS-232 interface can be set with the help of the Setup
Menu (See details in Section 5-3-1).
You have to reset the unit after adjustment to activate the new setting.
Note
6-3. Example of the RS-232 Operation
6-3-1. RS-232 command
Command format
This unit uses high-level language commands with a CR (0DH) and LF (0AH) as the
end of the command.
The system would interpret and execute the command only after these two
characters are received. After the unit execute the command, it would send a
response string to the computer. The response string is as follows
= > CR LF Command executed successfully
? > CR LF
! > CR LF
If the command needs any information from the unit, the unit would send the
information back to the computer (with CR and LF) and then send the response
string to the computer.
Command error, not accepted
Command correct but execution error (e.g. parameters out of range).
6-3-2. Command format
This unit supports the following command format.
There should always be a CR (0DH) and a LF (0AH) appended to the command
while sending the command to this unit.
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1). Command to switch the Power ON/OFF
Format Power <value>
Example
A space (ASCII code 20H) is needed between Power and <value>.
<value> can be one of the following.
Power off
“0”
Power on
“1”
2). Command to query the Output Frequency
Format FRQ?
After “Enter”, the unit’s “Output Frequency” appears on the PC screen.
3). Command to query the Output Voltage
Format VOL?
After “Enter”, the unit’s “Output Voltage” appears on the PC screen.
4). Command to query the Output Current
Format AMP?
After “Enter”, the unit’s “Output Current” appears on the PC screen.
5). Command to query the Input Battery Voltage
Format BAT?
After “Enter”, the unit’s “Input Voltage” appears on the PC screen.
6-3-3. Command for accessing Setup Menus and adjusting values
1). Select the Setup Menus with the help of Function Codes
Format FUNC <Function Code>
After “Enter”, the Setup Menu for the Function Code will be called.
The <Function Code>= 0~17, as follows
<Function Code> Setting Menu <Function Code> Setting Menu
0 LCD Contrast 9 UVP Recovery
1 LCD Auto-off 10 UV Alarm
2 RS-232 Baud-rate 11 O/P Voltage
3 Buzzer Setting 12 O/P Frequency
4 Alert Setting 13 Sync Frequency
5 NOT USED 14 Bypass Relay
6 OVP Setting 15 Overload Alarm
7 OVP Recovery 16 NOT USED
8 UVP Setting 17 NOT USED
2). Command to query the Functions No
Format FUNC?
After “Enter”, the unit’s “Function Code” appears on the PC screen.
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3). Command to query the set value of the Function
Format SETT?
After “Enter”, the existing set value of the function appears on the PC screen.
4). Command to set or adjust the value of the Function
Format SETT <value>
After “Enter”, the new value of the Function is set Choose the <value> of the
function as follows
FUNC 0 LCD Contrast
Setting Menu SETT <value>
LCD Contrast 0~100
FUNC 1 LCD Auto-off
Setting Menu SETT <value>
LCD Auto-off Disable~250
FUNC 2 RS-232 Baud rate
Setting Menu SETT <value> Baud rate
0 1200
RS-232
Baud rate
1 2400
2 4800
3 9600
FUNC 3 Buzzer Setting
Setting Menu SETT <value> Buzzer (Beep sound)
0 Disable
1 Shutdown
2Alert
Buzzer Setting
3 Alert , SHDN
4 Message
5 Message , SHDN
6 Message , Alert
7 Msg , Alert , SHDN
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FUNC 4 Alert Setting
Setting Menu SETT <value> Alert
0 Disable
Alert Setting
1 Shutdown
2Alert
3 Alert , SHDN
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FUNC 6 OVP Setting
Setting Menu SETT <value> Model
30~34
OVP Setting
60 MAX.
SR1000/SR1000T-124
SR1000/SR1000T-224
SR1000/SR1000T-148
SR1000/SR1000T-248
FUNC 7 OVP Recovery
Setting Menu SETT <value> Model
28~32
OVP Recovery
56~60
SR1000/SR1000T-124
SR1000/SR1000T-224
SR1000/SR1000T-148
SR1000/SR1000T-248
FUNC 8 UVP Setting
Setting Menu SETT <value> Model
18~22
UVP Setting
36~44
SR1000/SR1000T-124
SR1000/SR1000T-224
SR1000/SR1000T-148
SR1000/SR1000T-248
FUNC 9 UVP Recovery
Setting Menu SETT <value> Model
23~27
UVP Recovery
46~54
SR1000/SR1000T-124
SR1000/SR1000T-224
SR1000/SR1000T-148
SR1000/SR1000T-248
FUNC 10 UV Alarm
Setting Menu SETT <value> Model
19~23
UV Alert
38~46
SR1000/SR1000T-124
SR1000/SR1000T-224
SR1000/SR1000T-148
SR1000/SR1000T-248
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FUNC 11 O/P Voltage
Setting Menu SETT <value> Model
97~123
O/P Voltage
194~246
SR1000/SR1000T-124
SR1000/SR1000T-148
SR1000/SR1000T-224
SR1000/SR1000T-248
FUNC 12 O/P Frequency
Setting Menu SETT <value>
O/P Frequency 47~63
FUNC 13 Sync Frequency
Setting Menu SETT <value>
Sync Frequency 0.1~7
FUNC 14 Bypass Relay
Setting Menu SETT <value> Alert
0ON LINE
Bypass Relay
1 Haphazard (OFF LINE)
2 Normal (OFF LINE)
3 Exacting (OFF LINE)
FUNC 15 Overload Alarm
Setting Menu SETT <value>
Overload Alarm 50~110
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7. Information
7-1. Troubleshooting
WARNING!
Do not open or disassemble the SR series Inverter.
Attempting to service the unit may cause risk of electrical shock or fire.
Problems and Symptoms Possible Cause Solutions
No AC Power “Output”
a. LCD Panel Display “OLP
Shutdown”
b. LCD Panel Display “OVP
Shutdown”
c. LCD Panel Display “UVP
Shutdown”
d. LCD Panel Display “OTP
shutdown”
7-2. Warranty
We guarantee 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 inverters if you directly returned them to us with postage paid.
Short circuit , wiring error.
over loading.
Over input voltage (OVP) Check input voltage.
Low input voltage. (UVP) Recharge battery.
Thermal shutdown. (OTP) Improve ventilation.
Check AC wiring for short
circuit .
Reduce load.
Reduce input voltage.
Check connections and
cables.
Make sure ventilation, grilles /
slots of the inverter are not
obstructed. Lower ambient
temperature.
Please note that COTEK is only responsible for ensuring our products are
operational before delivering. This warranty will be considered void if the unit has
been misused, altered, or accidentally damaged. COTEK is not liable for anything
that occurs as a result of the user’s fault.
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No.33, Sec. 2, Renhe Rd., Daxi Dist., Taoyuan City 33548, Taiwan
Phone
+886-3-3891999 FAX +886-3-3802333
http
// www.cotek.com.tw
2016.06._A1
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