Cotek SD2500, SD3500 User Manual

SD Series User’s Manual

SD2500 / SD3500

PURE SINE WAVE INVERTER

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Copyrights 2016 COTEK Electronic IND. CO. All Rights Reserved.

Any part of this document may not be reproduced in any form for any purpose without the prior

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Table of Content

1. IMPORTANT SAFETY INFORMATION 1

1-1. General Safety Precautions 1

1-2. Precautions When Working with Batteries 1

1-3. Installation 2

2. FUNCTIONAL CHARACTERISTICS 3

2-1. General Information 3

2-2. Application 3

2-3. Electrical Performance 4

2-4. Mechanical Drawings 8

3. INTRODUCTION 9

3-1. Power ON / OFF / REMOTE (Main) switch 10

3-2. LED Indicator 10

3-3. DIP Switch (S1~S8) Assignment 11

3-4. DC Input - 12

3-5. DC Input + 13

3-6. Chassis Ground 13

3-7. AC Output 13

3-8. By-pass AC input 13

3-9. AC input circuit breaker 13

3-10. AC output socket 13

3-11. Reset Button 13

3-12. CAN1 and CAN2 Port 13

3-13. LCM Port 14

3-14. Green terminal 15

3-15. RS-232 Port 15

3-16. Fan Ventilation 16

3-17. Protections Features 16

4. DC WIRING CONNECTIONS 17

4-1. DC Input Terminals 18

4-2. Hard-wire Installation 19

5. PARALLEL MODE 24

5-1. Prepare for Parallel Usage 24

5-2. Industry Applications 25

5-3. DC Wiring for Parallel Usage 27

5-4. AC Wiring Diagram 29

5-5. Remote command for the parallel connection 33

5-6. Remove Parallel Connection 33

6. RS-232 COMMAND 34

6-1. RS-232 command introduction 34

7. TROUBLESHOOTING 42

8. WARRANTY 42

1.Important Safety Information

WARNING!

Before using the inverter, read and save the safety instructions.

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. Overheating may

take place.

1-1-2. To avoid a risk of fire and electric shock, please 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.

1. Important Safety Information

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, joints, fittings, or other connection between components of the fuel

system.

1-1-4. An over current protection at the time of installation shall be provided by

others for the AC output circuit.

1-1-5. Additional breakers suitable for 20 A branch circuit protection shall be

provided for the GFCI receptacles.

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 wash eyes 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 battery or engine.

1-2-3. Do not drop a metal tool on the battery. The resulting spark or short-circuit on

the battery or 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 similar item to metal causing a severe burn.

1

1-3. Installation

The power inverter should be installed in a location that meets the following
requirements

Dry – Do not allow water to drip or splash on the inverter.
Cool – Ambient air temperature should be between -20 and 50 , but he cooler

the better.

Safety – Do not install batteries in the compartment or other areas here flammable

fumes existence such as fuel storage areas or engine compartments.

Ventilated – Allow at least one feet of clearance around the Inverter for air flow.

Ensure the ventilation shafts on the rear and bottom of the unit are not

obstructed.

Dust-free – Do not install the Inverter in dusty environments here dust, wood

particles or other filings/shavings are present. The dust can be pulled

into the unit when the cooling fan is in operation.

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 (refer to section 4.DC wiring

connections).

Do not mount the inverter where it is exposed to the gases produced by the battery.

These gases are very corrosive and prolonged exposure 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.

2

2.Functional Characteristics

2-1. General Information

SD-series is new generation power inverter equipped with N+1 parallel power

function , 3-phase capability, and AC transfer switch. SD series is suitable for RV,

Marine and Emergency appliances.

Features

z Parallel redundancy design for power expansion

z Multiple industrial applications that create 1Ф3W / 3Ф4W power systems

z User-friendly remote control

z Automatic master mechanism to eliminate single point failure and optimize

reliability

z Built-in ATS and AC circuit breaker

z Optional STS module, transfer time is less than 4ms.

2. Functional Characteristics

z RS-232 communication

z Input & output fully isolation

z Output voltage / power saving mode is selectable by DIP switch and remote

control (CR-10)

z Input Protection Reverse Polarity (Fuse) / Under Voltage / Over Voltage

Protection

z Output Protection Short Circuit / Overload / Over Temperature / Over Voltage

Protection

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 of this

model.

2-2. Application

2-2-1. Power tools–circular saws, drills, grinders, sanders, buffers, weed and hedge

trimmers, air compressors.

2-2-2. Office equipment – computers, printers, monitors, facsimile machines,

scanners.

2-2-3. Household items – vacuum cleaners, fans, fluorescent and incandescent

lights, shavers, sewing machines.

2-2-4. Kitchen appliances – coffee makers, blenders, ice markers, toasters.

2-2-5. Industrial equipment – metal halide lamp, high pressure sodium lamp.

2-2-6. Home entertainment electronics – television, VCRs, video games, stereos,

musical instruments, satellite equipment.

2-2-7. Vehicle, yacht and off-grid solar power systems.

3

2-3. Electrical Performance

2-3-1. SD2500 Specification

MODEL SD2500-112 SD2500-124 SD2500-148 SD2500-212 SD2500-224 SD2500-248

Output

Rating Power 2500W (de-rating after 40°C, refer to de-rating curve)

Peak Power (3Sec.) 3000W

Surge Power (<0.2Sec.) 4000W

Waveform Pure Sine Wave

Efficiency (Max.) 88% 89% 90% 88% 88% 90%

Output Voltage
(@rated VDC)

Output Frequency 50 / 60Hz ± 0.1%

Total Harmonic
Distortion (THD)

DC Voltage 12VDC 24VDC 48VDC 12VDC 24VDC 48VDC

< 3% @ under condition
greater than 1.15 times of the rated VDC,
110V / linear load)

100 / 110 / 115 / 120VAC ± 3% 200 / 220 / 230 / 240VAC ± 3%

< 3% @ under condition
greater than 1.15 times of the rated VDC,
230V / linear load)

DC Input

Voltage Range 10.0~16.0 VDC 20.0~32.0 VDC 40.0~64.0 VDC 10.0~16.0 VDC 20.0~32.0 VDC 40.0~64.0 VDC

No load Power
Consumption

On Mode @ Save Mode 0.9A 0.35A 0.3A 1.1A 0.7A 0.4A

On Mode @ No Load Mode < 2.9A < 1.4A < 0.8A < 3.6A < 1.8A < 1A

Fuse 40Ax9 20Ax9 15Ax6 40Ax9 20Ax9 15Ax6

@12VDC @24VDC @48VDC @12VDC @24VDC @48VDC

AC Input

AC Range 100 / 110 / 115 / 120VAC ± 12.5% 200 / 220 / 230 / 240VAC ± 12.5%

Frequency Selectable 50 / 60 Hz

Synchronous
Frequency

Circuit Breaker 35A 20A

Transfer Switch

①

47

57 / 53 63 Hz

Standard ATS Inverter to utility AC 8~10ms.; Utility AC to inverter 16~50ms.

Optional STS module Single < 4ms; N+1 & 1P3W & 3P4W < 6ms

Protection

BAT.Low Alarm ± 3% 10.5VDC 21.0VDC 42.0VDC 10.5VDC 21.0VDC 42.0VDC

BAT.Low Shut-down ± 3% 10.0VDC 20.0VDC 40.0VDC 10.0VDC 20.0VDC 40.0VDC

BAT.Low Restart ± 3% 12.5VDC 25.0VDC 50.0VDC 12.5VDC 25.0VDC 50.0VDC

BAT.High Alarm ± 3% 15.5VDC 31.0VDC 62.0VDC 15.5VDC 31.0VDC 62.0VDC

BAT.High Shut-down ± 3% 16.0VDC 32.0VDC 64.0VDC 16.0VDC 32.0VDC 64.0VDC

BAT.High Restart ± 3% 15.0VDC 30.0VDC 60.0VDC 15.0VDC 30.0VDC 60.0VDC

Input Protection Reverse Polarity (Fuse) / Under Voltage / Over Voltage Protection / AC over current (Breaker)

Output Protection Short Circuit / Overload / Over Temperature / Over Voltage Protection

4

2. Functional Characteristics

MODEL SD2500-112 SD2500-124 SD2500-148 SD2500-212 SD2500-224 SD2500-248

Environment

Working Temp. -20 +60°C; refer SD2500 power de-rating curve

Storage Temp. -40 +70°C

Relative Humidity Max. 90%, non-condensing

Safety & EMC

Safety Standards

EMC Standards Certified FCC Class B

E-Mark ---- Certified CISPR 25; ISO 7637-2

LED Indicator Input voltage level, faulty status

Certified UL 458

(UL only for hardwire)

---- Certified EN60950-1

Control & Signal

②

Certified EN 55014-1, EN 55014-2;

EN 61000-3-2, -3-3; EN61204-3;

EN 61000-6-1, -6-2, -6-3, -6-4

IEC 61000-4-2, 3, 4, 5, 6, 11

Remote Control CR-6, CR-8 and CR-10

Others

Dimension (WxHxD) 283x128x436 mm / 11.14x5.04x17.17iInch

Weight 8 kg

Cooling Load & Thermal control fan

Communication Port RS-232 (RJ-11 type connector), Ethernet (Optional)

Note

The specifications are subject to change without prior notice. All the test

environments are conducted under the rated power operation conditions.

① Please refer to P.8 Transfer-Time Table.
② EN 55014-1, EN 55014-2 Class B: output cable less than 2 meters.

5

2-3-2. SD3500 Specification

MODEL SD3500-112 SD3500-124 SD3500-148 SD3500-212 SD3500-224 SD3500-248

Output

3500W

Rating Power

Peak Power (3Sec.) 4500W

Surge Power (<0.2Sec.) 6000W

Waveform Pure Sine Wave

Efficiency (Max.) 90% 90% 91% 90% 91% 91%

Output Voltage
(@rated VDC)

Output Frequency 50 / 60Hz ± 0.1%

Total Harmonic
Distortion (THD)

DC Voltage 12VDC 24VDC 48VDC 12VDC 24VDC 48VDC

(de-rating after 35°C, refer to de-rating curve for 12V)
(de-rating after 40°C, refer to de-rating curve for 24V and 48V)

100 / 110 / 115 / 120VAC ± 3% 100 / 110 / 115 / 120VAC ± 3%

< 3% @ under condition
greater than 1.15 times of the rated VDC,
110V / linear load)

< 3% @ under condition
greater than 1.15 times of the rated VDC,
110V / linear load)

DC Input

Voltage Range 10.0~16.0 VDC 20.0~32.0 VDC 40.0~64.0 VDC 10.0~16.0 VDC 20.0~32.0 VDC 40.0~64.0 VDC

No load Power
Consumption

On Mode @ Save Mode 1.4A 0.5A 0.5A 1.4A 0.5A 0.5A

On Mode @ No Load Mode < 2.9A < 1.4A < 0.8A < 3.6A < 1.8A < 1A

Fuse 40Ax12 20Ax12 20Ax6 40Ax12 20Ax12 20Ax6

@12VDC @24VDC @48VDC @12VDC @24VDC @48VDC

AC Input

AC Range 100 / 110 / 115 / 120VAC ± 12.5% 200 / 220 / 230 / 240VAC ± 12.5%

Frequency Selectable 50 / 60 Hz

Synchronous
Frequency

Circuit Breaker 35A 20A

Transfer Switch

①

57 / 53 63 Hz

47

Standard ATS Inverter to utility AC 8~10ms.; Utility AC to inverter 16~50ms.

Optional STS module Single < 4ms; N+1 & 1P3W & 3P4W < 6ms

Protection

BAT.Low Alarm ± 3% 10.5VDC 21.0VDC 42.0VDC 10.5VDC 21.0VDC 42.0VDC

BAT.Low Shut-down ± 3% 10.0VDC 20.0VDC 40.0VDC 10.0VDC 20.0VDC 40.0VDC

BAT.Low Restart ± 3% 12.5VDC 25.0VDC 50.0VDC 12.5VDC 25.0VDC 50.0VDC

BAT.High Alarm ± 3% 15.5VDC 31.0VDC 62.0VDC 15.5VDC 31.0VDC 62.0VDC

BAT.High Shut-down ± 3% 16.0VDC 32.0VDC 64.0VDC 16.0VDC 32.0VDC 64.0VDC

BAT.High Restart ± 3% 15.0VDC 30.0VDC 60.0VDC 15.0VDC 30.0VDC 60.0VDC

Input Protection Reverse Polarity (Fuse) / Under Voltage / Over Voltage Protection / AC over current (Breaker)

Output Protection Short Circuit / Overload / Over Temperature / Over Voltage Protection

6

2. Functional Characteristics

MODEL SD3500-112 SD3500-124 SD3500-148 SD3500-212 SD3500-224 SD3500-248

Environment

Working Temp. -20 +60°C; refer SD3500 power de-rating curve

Storage Temp. -40 +70°C

Relative Humidity Max. 90%, non-condensing

Safety & EMC

Safety Standards

EMC Standards Certified FCC Class B

E-Mark ---- Certified CISPR 25; ISO 7637-2

LED Indicator Input voltage level, faulty status

Certified UL 458

(UL only for hardwire)

---- Certified EN60950-1

Control & Signal

②

Certified EN 55014-1, EN 55014-2;

EN 61000-3-2, -3-3; EN61204-3;

EN 61000-6-1, -6-2, -6-3, -6-4

IEC 61000-4-2, 3, 4, 5, 6, 11

Remote Control CR-6, CR-8 and CR-10

Others

Dimension (WxHxD) 283x128x496 mm / 11.14x5.04x19.53 inch

Weight 10 kg

Cooling Load & Thermal control fan

Communication Port RS-232 (RJ-11 type connector), Ethernet (Optional)

Note

The specifications are subject to change without prior notice. All the test

environments are conducted under the rated power operation conditions.

① Please refer to P.8 Transfer-Time Table.
② EN 55014-1, EN 55014-2 Class B: output cable less than 2 meters.

De-rating Curve

Figure 1. SD2500 de-rating curve Figure 2. SD3500 de-rating curve

7

Transfer-Time Table

Mode / Transfer Switch ATS STS

Frequency is synchronized: < 4ms.;

Haphazard

Normal

Exacting

Online

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~50ms.

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~25ms.

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~50ms.

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~25ms.

Table 1. SD series transfer-time

Frequency is not synchronized:

Inverter to utility AC: < 4ms.;

Utility AC to inverter: 16~50ms.

< 4ms

Inverter to utility AC: < 4ms.;

Utility AC to inverter: 16~50ms.

< 4ms

2-4. Mechanical Drawings

Figure 3. SD series mechanical drawings

Model A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm) H (mm)

SD2500

SD3500

8

436 240.0 95.6 268.6 8.5 11.5 128 283

496 240.0 125.6 268.6 8.5 11.5 128 283

Table 2. SD series dimension

3.Introduction

3. Introduction

Version 1 General Model

Figure 4. SD general model front panel

Version 2 UL Model

Figure 5. SD UL model front panel

Figure 6. SD series rear panel

9

Front Panel / Rear Panel

1 Power ON/OFF/REMOTE (Main) switch 10 AC output socket

2 Status LED 11 Reset Button

3 Dip Switch (S1~S8) 12 CAN2 Port (only to be used in parallel mode)

4 DC Input - 13 CAN1 Port (only to be used in parallel mode)

5 DC Input + 14

6 Chassis Ground 15 Green terminal (Remote and Parallel select)

7 AC Output 16 Remote / RS-232 port

8 By-pass AC Input 17 FAN

9 AC input circuit breaker

Table 3. SD front panel / rear panel introduction

LCM Port (Connection for LCD remote control

panel)

3-1. Power ON / OFF / REMOTE (Main) switch

A. Before installing the inverter, please ensure the main switch is in the OFF position.

B. Before using the remote unit, please ensure the main switch is in the REMOTE

position.

C. Main switch ON / OFF will not control AC Grid input, therefore for any

maintenances please remove the AC Grid connection to prevent damage of SD

series, then turn off the Main switch to OFF position for maintenance service.

3-2. LED Indicator

Green LED

Solid

Slow Blink

Intermittent Blink

Orange LED LED Signal Status

Fast Blink

Slow Blink

Red LED LED Signal Status

Intermittent Blink OTP

Fast Blink

Slow Blink

Solid

Intermittent Blink

Intermittent Blink

LED Signal Status

Power OK

Power Saving

Bypass

OVP

UVP

OVP- Shut-down

UVP- Shut-down

OLP

Fan Failure

Component Failure

Table 4. SD LED indicator

10

3-3. DIP Switch (S1~S8) Assignment

PIN# PIN Assignment

1 AC output voltage setting

2 AC output voltage setting

3 AC output frequency setting

4 To set-up 3 Phase output or Energy-saving level

5 To set-up 3 Phase output or Energy-saving level

6 To set-up 3 Phase output or Energy-saving level

3. Introduction

1=ON/0=OFF

Figure 7. DIP switch (S1~S8)

7 To set-up DIP Switch S4~S6 for power saving or 3 Phase output

8 To set-up function parameters adjustment via LCM port or DIP switch

Table 5. DIP switch (S1~S8) PIN assignment

3-3-1. DIP switch set-up

S1 S2 S3 S4 S5 S6 S7 S8 Scenario

00XXXXXXAC output voltage
1 0 X X X X X X AC output voltage 110VAC/220VAC
01XXXXXXAC output voltage
1 1 X X X X X X AC output voltage 120VAC/240VAC

XX0 XXXXXAC output frequency
X X 1 X X X X X AC output frequency 60Hz

XXXXXX0 X

X X X X X X 1 X 3 Phase output setting (S4~S6)
XXXXXXX0 Adjust function parameters via LCM port
X X X X X X X 1 Adjust function parameters via DIP switch

1=ON / 0=OFF

Table 6. DIP switch set-up

Power saving mode setting (S4~S6); No

master-slave in parallel

100VAC/200VAC

115VAC/230VAC

50Hz

3-3-2. Power Saving Mode

Power Saving Mode is adjustable and set by the Dip Switches,S4, S5 and S6 on the
front panel. Example SD2500 Saving set 2%, the load is below 50W 10 sec. will into

saving mode, more than 150W or more leave saving mode.

A. Power device enter the saving mode

The rate power x setting % = the threshold enter the power saving model

In case the load less than threshold value 5 seconds, the power device will enter

the saving mode.

11

B. Power device leaving saving mode(re-start)

Restart threshold = rate power x setting % x 2~3

In case the power over the restart threshold, the power device will re-start and

provide the AC power.

S1 S2 S3 S4 S5 S6 S7 S8 Scenario

XXX0000X Power saving DISABLE

X X X 1 0 0 0 X

XXX0100X

X X X 1 1 0 0 X

XXX0010X

X X X 1 0 1 0 X

XXX0110X

X X X 1 1 1 0 X

1=ON / 0=OFF

Table 7. Power saving mode set-up

Go in power saving mode when output load is
under 2% of rating power
Go in power saving mode when output load is
under 3% of rating power
Go in power saving mode when output load is
under 4% of rating power
Go in power saving mode when output load is
under 5% of rating power
Go in power saving mode when output load is
under 6% of rating power
Go in power saving mode when output load is
under 7% of rating power
Go in power saving mode when output load is
under 8% of rating power

3-3-3. S4~S6 Set-up for parallel application

S1 S2 S3 S4 S5 S6 S7 S8 Scenario

Master (0°); "R" Phase

XXX0001X

X X X 0 0 1 1 X

XXX0111X

X X X 1 0 0 1 X

XXX1011X

X X X 1 1 1 1 X Disable parallel function

1=ON / 0=OFF

Table 8. Parallel application set-up

to be used for 1Ø3W output in series
connection(Master) or 3Ø4W output
connection("R" Phase)
Slave (0°) with current sharing
to be used in parallel connection only
Slave (180°), to be used for 1Ø3W output in
series connection(L-NN-L)
Slave (-120°), "S" Phase
to support "S" Phase be(-120°) in 3Ø4W
output connection
Slave (120°), "T" Phase
to support "T" Phase be(120°) in 3Ø4W
output connection

3-3-4. Parameter select: “S8” select SD’s parameter setting by dip switch or LCM port

Set Value S8

LCM port 0

DIP switch 1

1=ON / 0=OFF

Table 9. Parameter select

3-4. DC Input - (please refer to DC wiring connections on p.17)

12

3. Introduction

3-5. DC Input + (please refer to DC wiring connections on p. 17)

3-6.Chassis Ground Connect the wire # 8 AWG to vehicle chassis

WARNING!

Operating the inverter without a proper ground connection may cause electrical

safety hazard.

3-7. AC Output (Please refer to hard wiring installation on p. 19)

3-8. By-pass AC input (please refer to hard wiring installation on p. 19)

3-9. AC input circuit breaker

The AC input circuit breaker protects the model from overload. When an overload

condition exists, the circuit breaker stops supplying output AC grid power. To reset it,

push the circuit breaker switch then the model will be back in normal operation. The

source fault should be corrected before you reset it.

3-10. AC output socket (please refer to 4-2-3. on p. 22)

3-11. Reset Button (only to be used for Ethernet interface)

The Reset Button is to be used to resume the IP address to factory default value

IP 192.168.100.181

Subnet Mask 255.255.255.0

3-12. CAN1 and CAN2 Port (only to be used in parallel mode)

Figure 8. CAN1 and CAN2 port

1. Before using parallel mode, you need to ensure the green terminal’s parallel jump

status is set to ON.

2. Use the RJ-45 line (RJ-45 network cable parallel connection) to link one of the

SD Series CAN1 (CAN2) port to the other CAN1 (CAN2) port.

PIN# LCM port CAN1 port CAN2 port

1 CANH CAN_H CAN_H

2 CANL CAN_L CAN_L

3 P1 Reserved Reserved

4 VCC- Reserved Reserved

5 VCC+ Reserved Reserved

6 DIS Reserved Reserved

7 5VS- RND RND

8 5VS+ Reserved Reserved

Table 10. LCM, CAN1, CAN2 port PIN number and signal description

13

WARNING!

LCM port is for remote control connection only.

Please make sure the connection is correct. (CAN cable to CAN1 / CAN2

port , Remote cable to LCM port)

If CAN cable is connected to LCM port, or vice versa, the inverter will be

damaged.

3-13. LCM Port

Connection for LCD remote control panel, you can set and display the SD-series

operation status.

Figure 9. LCM port

Figure 10. LCM cable

LCD Remote Control Panel SD Series

PIN Num. Signal Description PIN Num.

1CANH1

2CANL2

3PON3

4 VCC- 4

5VCC+5

6DIS6

75VS-7

85VS+8

Table 11. PIN number and signal description for LCD remote control

Note

14

The cables should be as short as possible (less than 32.8 feet / 10 meters) so

that they can handle the signal.

3-14. Green terminal (Remote and Parallel select)

Figure 11. Green terminal

PIN # PIN Assignment

1GND
2 -ENB
3ENB
4 Parallel Jump
5 Parallel Jump

Table 12. Green terminal PIN assignment

3-14-1. Parallel Jump Function (please refer to section 5 for further detailed info.)

1. Before installing the inverter, you need to ensure the main switch is in the

3. Introduction

OFF position.

2. Use 20 ~ 24 #AWG wire to connect the parallel jump terminal.

3-14-2. Remote Control Function

1. Before installing the inverter, please ensure that the main switch is in the

OFF position.

2. Before using the remote control terminal, please ensure the main switch is

in the REMOTE position.

3. Use 20 ~ 24 #AWG wire to connect the remote control terminal.

4. Remote control ON/OFF inverter setup status.

Figure 12. Remote control function setting

Note

The above 4 methods can be used to turn ON/OFF.

3-15. RS-232 Port

RS-232 Port Serial port monitoring and control through computer’s interface.

Figure 13. RS-232 port

15

Figure 14. RS-232 cable

SD Series Computer

PIN Num. Signal Description PIN Num. Signal Description

1 Not used 1 Not used

2GND5GND

3 RXD 3 TXD

4 TXD 2 RXD

5 Not used Not used

6 Not used Not used

Table 13. The connection between SD series and computer

The connection between this SD-series and the computer is as follows

Figure 15.
The connection between SD series and computer

3-16. Fan Ventilation

The rear panel must keep the distance at least 1 inch from any surrounding items.

3-17. Protections Features

DC Input (VDC)

Model

12V 16 ± 0.25 15 ± 0.25 15.5 ± 0.25 10 ± 0.25 12.5 ± 0.25 10.5 ± 0.25

24V 32 ± 0.5 30 ± 0.5 31 ± 0.5 20 ± 0.5 25 ± 0.5 21 ± 0.5

48V 64±1 60± 1 62± 1 40± 1 50± 1 42± 1

À

OVA only LED prompt, no beeper alarm.

Over Voltage Over Voltage

À

Shut-down Restart Shut-down Restart

Table 14. Protections Features

Alarm

Under Voltage Under Voltage

Alarm

16

4. DC Wiring Connections

4.DC Wiring Connections

Follow the instructions to connect the battery cables to the DC input terminals of the

Inverter. The cable should be as short as possible (less than 6 feet / 1.8 meters ideally)

so that it can handle the required current in accordance with the electrical codes or

application regulations. Inappropriate length of cables will reduce the inverter

performance such as poor surge capability, frequent low-input voltage warnings, and

shut-down. When under voltage protect condition, please check the cable size and

specification (length and diameter should conform to manual requirements) between

battery and SD model.

The longer or the narrower the cable is, the more the voltage drops. Increasing your DC

cable diameter will help to improve the situation will help improve the situation.

The following are recommended cable diameter for the best performance of the inverter.

(Applies to both 120V and 230V versions)

Model No. Wire AWG Inline Fuse

SD2500-112 / 212 # 3/0 350 A

SD2500-124 / 224 # 1 175 A

SD2500-148 / 248 # 4 90A

SD3500-112 / 212 # 4/0 500 A

SD3500-124 / 224 # 0 250 A

SD3500-148 / 248 # 2 125 A

SD2500-112 / 212 # 3/0 350 A

Table 15. SD series wiring cable diameter and inline fuse

Connect the cables to the power input terminals on the front panel of the inverter. The

red terminal is positive (+) and black terminal is negative (-).

Insert the cables into the terminals and tighten the screw to clamp the wires securely.

WARNING!

1. Make sure all the DC connections are tight (torque to 11 ft-lbs, 15 Nm Max.).

Loose connections could overheat and result in a potential hazard.

2. The installation of a fuse must be on the 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.

Also, only use high quality copper wire and keep the cable length short - maximum of

3 - 6 feet.

17

Do not place anything

between battery cable lug

and terminal surface.

Assemble exactly as shown.

Figure 16. Battery cabling

WARNING!

During the first installation, it is normal to experience a small spark is a normal

phenomenon because the internal capacitors charging. Do not be concerned.

4-1. DC Input Terminals

Connect DC input terminals to 12V / 24V / 48V battery or other power sources.

[ + ] represents positive, [ - ] represents negative. Reverse polarity connection can

blow the internal fuse and may damage the inverter permanently.

18

Model

DC Input Voltage

Minimum Maximum

12V 10V 16V

24V 20V 32V

48V 40V 64V

Table 16. SD series DC input voltage range

4. DC Wiring Connections

4-2. Hard-wire Installation

4-2-1. SD series provides the flexibility of hard-wire connection, and this function will

make external control panel wiring easier.

Version 1 General model

Step 1.

Remove the four screws of AC wiring compartment and pull it out with care.

Figure 17. General model setting Step 1

Step 2.

Pull the line through the snap bushing of the AC wiring compartment cover then

follow below picture operation.

Figure 18. General model setting Step 2

100VAC~120VAC / 200VAC~240VAC System

Figure 19. General model setting AC wiring

19

Note

The only difference between 110V and 220V is within the AC Input breaker

L or N and thus will not affect the wiring configuration.

Note

In case that user wants to install the earth-leakage circuit breaker, COTEK

recommend time delay type. The major specification of the circuit breaker
is as following

Earth-leakage current 100mA, 300mA, 500mA

Time 0.45 second, 1 second, 2 seconds

Recommend model NV50-SN, Time delay type of Shihin Electric

Version 2 UL model

Step 1.

Use the screwdriver to remove the cover.

Figure 20. UL model setting Step 1

Step 2.

AC cable pass through the ring. Wire the AC cable on the terminal.

Figure 21. UL model setting Step 2

20

Step 3.

Use the screwdriver to fix the cover.

4. DC Wiring Connections

Figure 22. UL model setting AC wiring

Figure 23. UL model setting Step 3

4-2-2. Connect AC output and AC input wiring to the SD series terminals.

Please take the following information as your reference.

Terminal Wire Color Wire Length / Gauge

AC OUTPUT

AC INPUT

Ground

Line (L) Black

Neutral (N) White

Line (L) Brown

Neutral (N) Blue

Green / Yellow or

Bare copper

Table 17. Wire Color / Wire Length / Wire Gauge

Within 16 feet / AWG#

200-240VAC

100-120VAC

26~32 feet / AWG#10~12

12AWG

8AWG

CAUTION!

It is advised that all the electrical installation should conform to the local electrical

codes and should be carried out by a certified technician.

When the unit is feeding the internally inverted voltage, the current carrying

conductors connected to the “L” and “N” terminals of the AC output will be isolated

from the metal chassis of the inverter. Hence, during this condition, when the metal

chassis of the inverter is connected to the earth ground, the “N” terminal of the AC

output will not be grounded (bonded) to the earth ground. Under this condition, the

“N” terminal of the AC output will not be a Neutral in the true sense. Do not touch this

terminal as it will be at an elevated voltage (almost half the value the AC output

voltage) with respect to the metal chassis / earth ground and may produce an

electrical shock when touched!

21

When the unit is transferring power from the AC input source, the grounding

condition of the “N” terminal of the AC output will be the same as the condition of the

“N” terminal of the AC input source. If the AC input source is the power supplied from

the utility, the “N” terminal would be a Neutral in the true sense. It will normally be

bonded to the earth ground and will read almost 0 V with respect to the earth ground.

In this case, touching this terminal will not be a shock hazard.

4-2-3. AC output and terminals of the SD series, you can use both the front wiring

terminal and outlet, as they are connected in parallel.

Type Number of outlet Voltage (VAC) Total Current (A)

GFCI 2 125 20

NEMA 2 125 15

Europe 1 250 16

Australia / New Zealand 1 250 15

U.K. 1 250 13

Wiring Terminal 1 100~250 35

①

UL458

②

Universal

① UL458 only support 112 and 124 model.
② Only CE (200-240V Type) and FCC (100-120V Type) standard approve.

Table 18. AC input socket / Wiring terminal

1 120 35

1 100~250 16

22

Note

In case the load current over the outlet rated current, please use the hared

wire terminal next to the outlets.

4. DC Wiring Connections

Note

Recommend GFCI connector

y HUBBELL INC WIRING DEVICE DIV, Type GF20 and GFRST20. Rated

125V, 20A

y COOPER WIRING DEVICES, Type VGF20 and SGF20. Rated 125V,

20A

y LEVITON MFG CO INC, Type 7899-W and GFNT2. Rated 125V, 20A

y PASS & SEYMOUR INC, Type 2097. Rated 125V, 20A

WARNING!

When using full power, it is recommended to use the wiring terminal.

23

5.Parallel Mode

5-1. Prepare for Parallel Usage

1. Before setting, you need to ensure that the main switch is ”OFF”.

2. Before using the parallel function, you need to set the parallel jump of the green

terminal the status of which must be “ON”, if the between in another SD is set

to ”OFF” which is termination resistors.

Example If three SD inverters are paralleled, setup green terminal.

Parallel Unit 1 Unit 2 Unit 3

Parallel Jump ON OFF

Figure 24. Parallel jump setting

À

ON

ÀIf you parallel N units, the first (unit 1) and the last unit (unit N) must set parallel jumper in ON

position.

Table 19. Jumper setting for parallel usage

24

Figure 25. Sample

three SD inverters are paralleled

5. Parallel Mode

Note

The simple method to determine the terminal resistor No need to set the

terminal resistor when CAN1 and CAN2 port have wiring.

Note

SD series can be used for N+1 (N 14) redundancy and the ability of

enlarge the capacity (Users can install maximum 15 units of inverters

together in parallel in order to provide the power expansion).

3. Before using the parallel function, you need to set voltage and frequency of all

units’ DIP switches to the same selection (refer to section 3-3).

4. Check RJ-45 line connects already.

5. SD series based on master-slave architecture and support auto master function.

User only set one SD parameters and other SDs will follow the master SD

setting.

5-2. Industry Applications

Type 1Φ2W 1Φ3W 3Φ4W

Drawing

The SD series create 1Ф3W
power system, L1-L2 Voltage
is L1-N double.

Example

SD2500-124 set output 100V /
50Hz
The phase voltage is 100V /
50Hz (L1-N, L2-N, L3-N)
The line voltage
L2-L3 ~ 173V/50Hz

Example

Example

SD2500-124 set output 100V /
50Hz
The L-N

100V / 50Hz

Example

SD2500-124 set output 100V /
50Hz
The L1-N

100V / 50Hz

L1-L2, L1-L3,

25

Type 1Φ2W 1Φ3W 3Φ4W

Waveform

Battery

Set up

Transfer Switch STS

Warning

module
& 1P3W & 3P4W < 6ms

Single < 4ms; N+1

DIP

Switch

Refer to 5-2-1. / 5-2-2. Refer to 5-2-3. Refer to 5-2-4.

Setting

Wiring

Diagram

Refer to Figure 30. / Figure 31. Refer to Figure 32. Refer to Figure 33.

5-2-1. 1Φ2W Switch Table

Master Slave 0°

S4 0 0

S5 0 0

S6 0 1

S7 1 1

S8 1 1

Table 21. 1Φ2W switch table

Do not support N+1
operation, maximum of two
SD inverters, THD < 4%

Table 20. Parallel industry applications

Do not support N+1
operation, maximum of three
SD inverters, THD < 4%

ÀDIP switch (S7) must be set to

“1” À

26

5-2-2. 1Φ2W Switch Table Auto Master

Auto Master

S4 0

S5 0

S6 0

S7 0

S8 1

Table 22. 1Φ2W switch table auto master

5-2-3. 1Φ3W Switch Table

Master Slave 180°

S4 0 0

S5 0 1

S6 0 1

S7 1 1

S8 1 1

Table 23. 1Φ3W switch table

5. Parallel Mode

5-2-4. 3Φ4W Switch Table

L1 Master L2 -120° Slave L2 +120° Slave

S4 0 1 1

S5 0 0 0

S6 0 0 1

S7 1 1 1

S8 1 1 1

Table 24. 3Φ4W switch table

5-3. Wiring for Parallel Usage

5-3-1. Connection method

1. AC OUTPUT connector setup Line link to Line; Neutral link to Neutral.

2. AC INPUT connector setup Line link to Line; Neutral link to Neutral.

3. Battery connector setup POS+ link to POS+; NEG - link to NEG –

5-3-2. Connection Diagram

Figure 26. Connection Diagram_1

27

Figure 27. Connection Diagram_2

28

Figure 28. Connection Diagram_3

5-4. AC Wiring Diagram

Figure 29. SD series front panel introduction

1Φ2W Wiring Diagram

5. Parallel Mode

Figure 30. 1Φ2W parallel AC wiring diagram

29

1Φ2W Auto Master Wiring Diagram

Figure 31. 1Φ2W parallel AC wiring diagram auto master

Note

Auto master can be operated under 1Φ2W mode.

Under 1Φ2W auto master mode, please set up the inverter by Ethernet or

Remote control CR-10.

Note

1Φ2W system parallel Max. N+1=16

Note

If you parallel N units, the first (unit 1) and the last unit (unit N) must set

parallel jumper in ON position.

30

1Φ3W Wiring Diagram

5. Parallel Mode

Figure 32. 1Φ3W parallel AC wiring diagram

31

3Φ4W Wiring Diagram

Model

SD2500

SD3500

32

Figure 33. 3Φ4W parallel AC wiring diagram

Connection /

Output VAC

L1-to-L2 173 191 199 208 346 381 398 416

L2-to-L3 173 191 199 208 346 381 398 416

L3-to-L1 173 191 199 208 346 381 398 416

L1-to-N 100 110 115 120 200 220 230 240

L2-to-N 100 110 115 120 200 220 230 240

L3-to-N 100 110 115 120 200 220 230 240

L1-to-L2 173 191 199 208 346 381 398 416

L2-to-L3 173 191 199 208 346 381 398 416

L3-to-L1 173 191 199 208 346 381 398 416

L1-to-N 100 110 115 120 200 220 230 240

L2-to-N 100 110 115 120 200 220 230 240

L3-to-N 100 110 115 120 200 220 230 240

100V 110V 115V 120V 200V 220V 230V 240V

Table 25. Connection & output VAC under 3Φ4W

5. Parallel Mode

5-5. Remote command for the parallel connection

There are two ways for parallel connection remote setting 1. RS-232, 2. CAN-Bus.

The RS-232 communication protocol not support broadcast function. In case of

the remote control use the RS-232 port, please follow the setting steps for the SD

setting.

RS-232 remote communication setting

1. Select one SD to be the Master and follow the setting

Scenario S1 S2 S3 S4 S5 S6 S7 S8

MasterXXX0 001X

Table 26. RS-232 remote communication setting

2. Please make sure the RS-232 communication cable connect to Master unit.

WARNING!

There is only one master in the system.

5-6. Remove Parallel Connection

1. Turn off the power.

2. Remove the RJ-45 cable (parallel connection signal cable).

3. Remove the AC parallel connection cable.

4. Remove the DC parallel connection cable.

33

6.RS-232 Command

6-1. RS-232 command introduction

6-1-1. 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 Command error, not

accepted ! > CR LF Command correct but execution error (e.g. parameters out

of range).

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.

6-1-2. RS-232 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.

Command Function Command Function

POWER 1

POWER 0

*RST

FRQ?

PINV?

Power on

Power off

Recovery default setting

Show frequency of SD

Show power of SD

Table 27. RS-232 command table

VINV?

IINV?

VGRID?

VBAT?

Show voltage of SD

Show current of SD

Show voltage of grid

Show voltage of battery

Note A space (ASCII code 20H) is needed between Power and <value>

Example Command to query the Functions No Format FUNC?

After “Enter”, the unit’s “Function Code” appears on the PC screen

34

6-1-3. Command for accessing Setup Menus and adjusting values

<Function Code> Setting Menu <Function Code> Setting Menu

6. RS-232 Command

FUNC0

FUNC1

FUNC2

FUNC3

FUNC4

FUNC5

FUNC6

FUNC7

FUNC8

FUNC9

Table 28. Command for accessing setup menus and adjusting values

OVP Setting

OVP Recovery

UVP Setting

UVP Recovery

UV Alarm

O/P Voltage

RS-232 Baud rate

O/P Frequency

Sync Frequency

Overload Alarm

FUNC10

FUNC11

FUNC12

FUNC13

FUNC14

FUNC15

FUNC16

FUNC17

FUNC18

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>= 0~18

2. Command to query the Functions No

Shut-down retry

Saving Level

Saving Interval

Bypass Relay

LCD Contrast

LCD Auto-off

Buzzer Setting

Alert Setting

Language

Format FUNC?

After “Enter”, the unit’s “Function Code” appears on the PC screen.

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.

6-1-4. Setting interface

1. OVP Setting <FUNC0> Set the Over Voltage Protection (OVP) and

shutdown.

Default = 16 VDC @ 12V Model, 32 VDC @ 24V Model, 64 VDC @ 48V

Model

Model Setting value range

12 V 15 VDC ~ 16 VDC

24 V 30 VDC ~ 32 VDC

48 V 60 VDC ~ 64 VDC

Table 29. OVP Setting <FUNC0>

35

2. OVP Recovery <FUNC1> When the DC input voltage is higher than the
OVP setting, the SD-series shuts-down; once the input voltage falls below
the set OVP value, the SD-series will automatically restart.
Default = 15 VDC @ 12V Model, 30 VDC @ 24V Model, 60 VDC @ 48V
Model

Model Setting value range

12 V 13 VDC ~ 15 VDC

24 V 26 VDC ~ 30 VDC

48 V 52 VDC ~ 60 VDC

Table 30. OVP Recovery <FUNC1>

3. UVP Setting <FUNC2> Setting Under Voltage
Protection (UVP) and Shut-down on the inverter operation.
Default = 10 VDC@ 12V Model, 20 VDC @ 24V Model, 40VDC @ 48V
Model

Model Setting value range

12 V 10 VDC ~ 11 VDC

24 V 20 VDC ~ 22 VDC

48 V 40VDC ~ 44 VDC

Table 31. UVP Setting <FUNC2>

4. UVP Recovery <FUNC3> When the DC input voltage is below the set UVP
value, the SD-series shuts-down; Once the input voltage rises above the set
UVP value, the SD-series will automatically restart.
Default = 12.5VDC @ 12V Model, 25 VDC @ 24V Model, 50VDC @ 48V
Model

Model Setting value range

12 V 11.5 VDC ~ 13.5 VDC

24 V 23 VDC ~ 27 VDC

48 V 46 VDC ~ 54 VDC

Table 32. UVP Recovery <FUNC3>

5. UV Alarm <FUNC4> Setting Under Voltage (UV) alarm. When the input
voltage is lower than the set value, the SD-series will sound a “beep” to
remind you that the unit is going to shut-down.
Default = 10.5 VDC @ 12 V Model, 21 VDC @ 24 V Model, 42 VDC @ 48 V
Model

36

Model Setting value range

12 V 10.5 VDC ~ 11.5 VDC

24 V 21 VDC ~ 23 VDC

48 V 42 VDC ~ 46 VDC

Table 33. UV Alarm <FUNC4>

6. RS-232 Command

Note

The value of the 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.

6. O/P Voltage <FUNC5> Setting the SD-series output voltage on the inverter

operation.

Default = 110 VAC @ 110 V Model, 230 VAC @ 230 V Model

Model Setting value range

110 V 97 VAC ~ 123 VAC

230 V 194 VAC ~ 246 VAC

Table 34. O/P Voltage <FUNC5>

7. RS-232 Baud rate <FUNC6>

Default setting 4800

Setting Menu

RS-232

Baud rate

Table 35. RS-232 Baud rate <FUNC6>

SETT<value>

0 1200

1 2400

2 4800

3 9600

4 19200

8. O/P Frequency <FUNC7> Setting the SD-series output frequency on the

inverter operation.

Default = 60 Hz @ 110 V Model, 50 Hz @ 230 V Model.

Model Setting value range

110 V 47 Hz ~ 63 Hz

230 V 47 Hz ~ 63 Hz

Table 36. O/P Frequency <FUNC7>

9. Sync Frequency <FUNC8> If a generator is distorted. The output waveform

(too low frequency) is used as AC source, the allowed frequency window for

the incoming AC power can be enlarged.
Example1

AC input = 230 VAC / 50Hz, User setting Value= 7Hz

When the SD-series “Output frequency” is within The Range of 43 Hz~57 Hz,

the internal transfer relay will close. When the output frequency is less than

43 Hz or more than 57 Hz, the internal transfer relay will still open.

37

Example2

When user setting value= Disable, the SD-series “Output frequency” is

within the range of 47 Hz~63 Hz, the internal transfer relay will close.

Default= 7Hz

Model Setting value range

110 V 0 ~ 7 Hz

230 V 0 ~ 7 Hz

Table 37. Sync Frequency <FUNC8>

10. Overload Alarm <FUNC9> Set the overload alarm. When the SD-series

output power is higher than the set value, the SD-series will sound a “beep”

to remind you that the unit is going to shut-down. At the same time, the

internal Dry Contact Relay will open/close.

Default = 104%

Setting range = 50%~110%

11. Shut-down retry <FUNC10>

When SD-series is shut-down under OVP, UVP,

Overload or short circuit conditions, the inverter will automatically try to

restart according to the setting value.

Default = 5
Setting range 0 ~ 15

12. Saving Level <FUNC11> Setting the SD-series to power saving to reduce

consumption from the batteries.

Default = 0

Setting range = 0 ~ 7

Setting Value Status

0 Default

1 2%

23%

3 4%

45%

5 6%

38

67%

7 8%

Table 38. Saving Level <FUNC11>

13. Saving Interval <FUNC12> When SD-series inverter enters power saving

mode, it will detect AC Load periodically.

Default = 2.0 Seconds

Setting range = 1.0S ~ 2.0S

6. RS-232 Command

If the AC Load is 3 times higher than Saving Level, inverter will recover and

output normally to AC Load.

14. Bypass Relay <FUNC13> 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).

Model SETT <value>

Haphazard 0

Normal 1

Exacting 2

On-line 3

Transfer Relay

Switching Feature

The transfer relay will switch “ON” or “OFF”.

Conformance to, phase and frequency

synchronization will not be considered.

The transfer 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.

The transfer relay will switch “ON” or “OFF” based on

conformance to, the Phase and Sync Frequency.

Always supplied by battery until which has run down

(UVP) then switch to grid.

Table 39. Bypass Relay <FUNC13>

Figure 34. Frequency and phase synchronous

39

Transfer-Time Table

Mode

Transfer Switch

Haphazard

Normal

Exacting

Online

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~50ms.

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~25ms.

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~50ms.

Inverter to utility AC: 8~10ms.;

Utility AC to inverter: 16~25ms.

ATS STS

Frequency is synchronized: < 4ms.;

Frequency is not synchronized:

Inverter to utility AC: < 4ms.;

Utility AC to inverter: 16~50ms.

Inverter to utility AC: < 4ms.;

Utility AC to inverter: 16~50ms.

Table 40. SD series transfer time

15. LCD contrast <FUNC14> Sets the LCD screen contrast.

Default = 50%

Setting range = 0% ~ 100%

Setting Menu Status <value>

LCD Contrast 0 ~ 100

< 4ms

< 4ms

Table 41. LCD contrast <FUNC14>

16. LCD Auto-off <FUNC15> Sets the LCD screen backlight auto off timer.

Default = 120 seconds

Setting range = 0 ~ 120 seconds.

Setting Menu Status <value>

LCD Auto-off 0 ~ 120

Table 42. LCD Auto-off <FUNC15>

17. Buzzer setting <FUNC16> Set the LCD remote control for the buzzer sound

Default = MSG, Alert, SHDN

Setting range = 0~7

Setting Menu SETT <value> Buzzer (Beep sound)

0 Disable

1 SHDN

2Alert

Buzzer Setting

3 Alert , SHDN

4MSG

40

5 MSG , SHDN

6 MSG , Alert

7 MSG , Alert , SHDN

Table 43. Buzzer setting <FUNC16>

6. RS-232 Command

18. Alert Setting <FUNC17> When alert occurs, the internal dry contact relay

will open/close.

Default = Alert, SHDN

Setting range = 0~3

Setting Menu SETT (RS-232) Alert (LCD)

0 Disable

Buzzer Setting

Table 44. Alert Setting <FUNC17>

1 SHDN

2Alert

3 Alert , SHDN

19. Language <FUNC18> The SD-series have different languages available

and are selectable.

Default = English
Setting English / Italian / Spanish / French / German

Model Setting value

English 0

Italian 1

Spanish 2

French 3

German 4

Table 45. Language <FUNC18>

41

7.Troubleshooting

Problems and Symptoms Possible Cause Solutions

A. Power status red light is

blinking fast.

B. Power status red light is

Blinking slowly.

C. Power status red light is

blinking Intermittently.

D. Power status is solid red

Over input voltage. (OVP)

Low input voltage. (UVP)

Thermal shut-down. (OTP)

Short circuit.

Wiring error.

Over Loading (OLP)

Table 46. SD series Troubleshooting

Check input voltage.

Reduce input voltage.

Recharge battery. Check connections

and cables.

Improve ventilation. Make sure

ventilation, shafts of the inverter are

not obstructed. Lower ambient

temperature.

Check AC wiring for short circuit.

Reduce load.

8.Warranty

We guarantee this product against defects in materials and workmanship for a period of

24 months from the date of purchase. Please contact with your local COTEK authorized

distributor for RMA (Return material Authorization) service. Please note that COTEK will

ensure our products are operational before delivery and the warranty service is offered to

the unit which has defect caused under normal use, in the judgment of COTEK’s
technician. The warranty is null and void under the following circumstances

(a) If the unit has been damaged through abuse, misuse, negligence (such as bumping,

wetting), fault voltage supply, air/water pollution accidents and natural calamities.

(b) If the serial number has been altered, effaced or removed.

42

No. 33, Sec. 2, Renhe Rd., Daxi Dist., Taoyuan City 33548, Taiwan

Phone

[phone] FAX [phone]

http

// www.cotek.com.tw

2016.07._A7