EZA ECB Series User manual

ECB Series User’s Manual
ECB25/35
PURE SINE WAVE INVERTER
EN
[Page 3]
ECB25/35
CONVERTISSEUR PUR SINUS
FR
[Page 47]

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1
EN
Table of Content
1. IMPORTANT SAFETY INFORMATION 3
1-1. General Safety Precautions 3
1-2. Precautions When Working with Batteries 3
1-3. Installation 4
2. FUNCTIONAL CHARACTERISTICS 5
2-1. General Information 5
2-2. Application 5
2-3. Electrical Performance 6
2-4. Mechanical Drawings 10
3. INTRODUCTION 11
3-1. Power ON / OFF / REMOTE (Main) switch 12
3-2. LED Indicator 12
3-3. DIP Switch (S1~S8) Assignment 13
3-4. DC Input - 15
3-5. DC Input + 15
3-6. Chassis Ground：Connect the wire # 8 AWG to vehicle chassis 15
3-7. AC Output 15
3-8. By-pass AC input 15
3-9. AC input circuit breaker 15
3-10.AC output socket 15
3-11.Reset Button 15
3-12.CAN1 and CAN2 Port 15
3-13.LCM Port 16
3-14.Green terminal (Remote and Parallel select) 17
3-15.RS-232 Port 17
3-16.Fan Ventilation 18
3-17.Protections Features 18

2
4. DC WIRING CONNECTIONS 19
4-1. DC Input Terminals 20
4-2. Hard-wire Installation 21
5. PARALLELMODE 26
5-1. Prepare for Parallel Usage 26
5-2. IndustryApplications 27
5-3. Wiring for Parallel Usage 29
5-4. AC Wiring Diagram 32
5-5. Remote command for the parallel connection 36
5-6. Remove Parallel Connection 36
6. RS-232 COMMAND 37
6-1. RS-232 command introduction 37
7. TROUBLESHOOTING 45
8. WARRANTY 45

3
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.
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.

4
EN
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.

5
2.Functional Characteristics
2-1. General Information
ECB-series is new generation power inverter equipped with N+1 parallel power
function , 3-phase capability, and AC transfer switch. ECB series is suitable for RV,
Marine and Emergency appliances.
Features
Parallel redundancy design for power expansion
Multiple industrial applications that create 1Ф3W / 3Ф4W power systems
User-friendly remote control
Automatic master mechanism to eliminate single point failure and optimize
reliability
Built-in ATS and AC circuit breaker
Optional STS module, transfer time is less than 4ms.
RS-232 communication
Input & output fully isolation
Output voltage / power saving mode is selectable by DIP switch and remote
control (CR-10)
Input Protection：Reverse Polarity (Fuse) / Under Voltage / Over Voltage
Protection
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.

6
EN
2-3. Electrical Performance
2-3-1. ECB2500 Specification
MODEL
ECB25-112
ECB25-124
ECB25-148
ECB25-212
ECB25-224
ECB25-248
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)
100 / 110 / 115 / 120VAC ± 3%
200 / 220 / 230 / 240VAC ± 3%
Output Frequency
50 / 60Hz ± 0.1%
Total Harmonic
Distortion (THD)
< 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,
230V / linear load)
DC Input
DC Voltage
12VDC
24VDC
48VDC
12VDC
24VDC
48VDC
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
@12VDC
@24VDC
@48VDC
@12VDC
@24VDC
@48VDC
On Mode @ Save Mode
0.9A
0.35A
0.3A
1.1A
0.7A
0.4A
On Mode@NoLoadMode
< 2.9A
< 1.4A
< 0.8A
< 3.6A
< 1.8A
< 1A
Fuse
40Ax9
20Ax9
15Ax6
40Ax9
20Ax9
15Ax6
AC Input
AC Range
100 / 110 / 115 / 120VAC ± 12.5%
200 / 220 / 230 / 240VAC ± 12.5%
Frequency Selectable
50 / 60 Hz
Synchronous
Frequency
47～57 / 53～63 Hz
Circuit Breaker
35A
20A
Transfer Switch①
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.LowShut-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.HighShut-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

7
MODEL
ECB25-112
ECB25-124
ECB25-148
ECB25-212
ECB25-224
ECB25-248
Environment
Working Temp.
-20～+60°C; refer ECB25 power de-rating curve
Storage Temp.
-40～+70°C
Relative Humidity
Max. 90%, non-condensing
Safety & EMC
Safety Standards
Certified UL 458
(UL only for hardwire)
----
Certified EN60950-1
EMC Standards
Certified FCC Class B
②Certified 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
E-Mark
----
Certified CISPR 25; ISO 7637-2
Control & Signal
LED Indicator
Input voltage level, faulty status
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.
①Please refer to P.8 Transfer-Time Table.
②EN 55014-1, EN 55014-2 Class B: output cable less than 2 meters.

8
EN
2-3-2. ECB3500 Specification
MODEL
ECB35-112
ECB35-124
ECB35-148
ECB35-212
ECB35-224
ECB35-248
Output
Rating Power
3500W
(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)
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)
100 / 110 / 115 / 120VAC ± 3%
100 / 110 / 115 / 120VAC ± 3%
Output Frequency
50 / 60Hz ± 0.1%
Total Harmonic
Distortion (THD)
< 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
DC Voltage
12VDC
24VDC
48VDC
12VDC
24VDC
48VDC
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
@12VDC
@24VDC
@48VDC
@12VDC
@24VDC
@48VDC
On Mode @ Save Mode
1.4A
0.5A
0.5A
1.4A
0.5A
0.5A
On Mode@NoLoadMode
< 2.9A
< 1.4A
< 0.8A
< 3.6A
< 1.8A
< 1A
Fuse
40Ax12
20Ax12
20Ax6
40Ax12
20Ax12
20Ax6
AC Input
AC Range
100 / 110 / 115 / 120VAC ± 12.5%
200 / 220 / 230 / 240VAC ± 12.5%
Frequency Selectable
50 / 60 Hz
Synchronous
Frequency
47～57 / 53～63 Hz
Circuit Breaker
35A
20A
Transfer Switch①
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.LowShut-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.HighShut-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)

9
MODEL
ECB35-112
ECB35-124
ECB35-148
ECB35-212
ECB35-224
ECB35-248
Output Protection
Short Circuit / Overload / Over Temperature / Over Voltage Protection
Environment
Working Temp.
-20～+60°C; refer ECB35 power de-rating curve
Storage Temp.
-40～+70°C
Relative Humidity
Max. 90%, non-condensing
Safety & EMC
Safety Standards
Certified UL 458
(UL only for hardwire)
----
Certified EN60950-1
EMC Standards
Certified FCC Class B
②Certified 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
E-Mark
----
Certified CISPR 25; ISO 7637-2
Control & Signal
LED Indicator
Input voltage level, faulty status
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.
①Please refer to P.8 Transfer-Time Table.
②EN 55014-1, EN 55014-2 Class B: output cable less than 2 meters.
De-rating Curve
Figure 1. ECB2500 de-rating curve Figure 2. ECB3500 de-rating curve

10
EN
Transfer-Time Table
Mode / Transfer Switch
ATS
STS
Haphazard
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~50ms.
Frequency is synchronized: < 4ms.;
Frequency is not synchronized:
Inverter to utility AC: < 4ms.;
Utility AC to inverter: 16~50ms.
Normal
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~25ms.
< 4ms
Exacting
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~50ms.
Inverter to utility AC: < 4ms.;
Utility AC to inverter: 16~50ms.
Online
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~25ms.
< 4ms
Table 1. ECB series transfer-time
2-4. Mechanical Drawings
Figure 3. ECB series mechanical drawings
Model
A(mm)
B(mm)
C(mm)
D(mm)
E(mm)
F(mm)
G(mm)
H(mm)
ECB25
436
240.0
95.6
268.6
8.5
11.5
128
283
ECB35
496
240.0
125.6
268.6
8.5
11.5
128
283
Table 2. ECB series dimension

11
3.Introduction
【Version 1】General Model
Figure 4. ECB general model front panel
【Version 2】UL Model
Figure 5. ECB UL model front panel
Figure 6. ECB series rear panel

12
EN
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
LCM Port (Connection for LCD remote control
panel)
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. ECB front panel / rear panel introduction
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 theAC Grid connection to prevent damage of ECB
series, then turn off the Main switch to OFF position for maintenance service.
3-2. LED Indicator
Green LED
LED Signal
Status
Solid
Power OK
Slow Blink
Power Saving
Intermittent Blink
Bypass
Orange LED
LED Signal
Status
Fast Blink
OVP
Slow Blink
UVP
Red LED
LED Signal
Status
Intermittent Blink
OTP
Fast Blink
OVP- Shut-down
Slow Blink
UVP- Shut-down
Solid
OLP
Intermittent Blink
Fan Failure
Intermittent Blink
Component Failure
Table 4. ECB LED indicator

13
3-3. DIP Switch (S1~S8) Assignment
Figure 7. DIP switch (S1~S8)
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
7
To set-up DIP Switch S4~S6 for power saving or 3 Phase output
8
To set-up function parameters adjustment via LCM 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
0
0
X
X
X
X
X
X
AC output voltage：100VAC/200VAC
1
0
X
X
X
X
X
X
AC output voltage：110VAC/220VAC
0
1
X
X
X
X
X
X
AC output voltage：115VAC/230VAC
1
1
X
X
X
X
X
X
AC output voltage：120VAC/240VAC
X
X
0
X
X
X
X
X
AC output frequency：50Hz
X
X
1
X
X
X
X
X
AC output frequency：60Hz
X
X
X
X
X
X
0
X
Power saving mode setting (S4~S6); No
master-slave in parallel
X
X
X
X
X
X
1
X
3 Phase output setting (S4~S6)
X
X
X
X
X
X
X
0
Adjust function parameters via LCM
X
X
X
X
X
X
X
1
Adjust function parameters via DIP switch
1=ON / 0=OFF
Table 6. DIP switch set-up
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 ECB25：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
1=ON/0=OFF

14
EN
the saving mode.
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
X
X
X
0
0
0
0
X
Power saving DISABLE
X
X
X
1
0
0
0
X
Go in power saving mode when output load is
under 2% of rating power
X
X
X
0
1
0
0
X
Go in power saving mode when output load is
under 3% of rating power
X
X
X
1
1
0
0
X
Go in power saving mode when output load is
under 4% of rating power
X
X
X
0
0
1
0
X
Go in power saving mode when output load is
under 5% of rating power
X
X
X
1
0
1
0
X
Go in power saving mode when output load is
under 6% of rating power
X
X
X
0
1
1
0
X
Go in power saving mode when output load is
under 7% of rating power
X
X
X
1
1
1
0
X
Go in power saving mode when output load is
under 8% of rating power
1=ON / 0=OFF
Table 7. Power saving mode set-up
3-3-3. S4~S6 Set-up for parallel application
S1
S2
S3
S4
S5
S6
S7
S8
Scenario
X
X
X
0
0
0
1
X
Master (0°); "R" Phase
to be used for 1Ø3W output in series
connection(Master) or 3Ø4W output
connection("R" Phase)
X
X
X
0
0
1
1
X
Slave (0°) with current sharing
to be used in parallel connection only
X
X
X
0
1
1
1
X
Slave (180°), to be used for 1Ø3W output in
series connection(L-NN-L)
X
X
X
1
0
0
1
X
Slave (-120°), "S" Phase
to support "S" Phase be(-120°) in 3Ø4W
output connection
X
X
X
1
0
1
1
X
Slave (120°), "T" Phase
to support "T" Phase be(120°) in 3Ø4W
output connection
X
X
X
1
1
1
1
X
Disable parallel function
1=ON / 0=OFF
Table 8. Parallel application set-up
3-3-4. Parameter select: “S8” select ECB’s parameter setting by dip switch or LCM
Set Value
S8
LCM
0
DIP switch
1
1=ON / 0=OFF

15
Table 9. Parameter select
3-4. DC Input - (please refer to DC wiring connections on p.17)
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
ECB Series CAN1 (CAN2) to the other CAN1 (CAN2).
PIN#
LCM
CAN1
CAN2
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

16
EN
Table 10. LCM, CAN1, CAN2 port ： PIN number and signal description
WARNING!
LCM port is designed for connect remote only.
To use CAN1 and CAN2 for parallel connection, please do not plug in LCM.
3-13. LCM Port
Connection for LCD remote control panel, you can set and display the ECB-series
operation status.
Figure 9. LCM port
Figure 10. LCM cable
LCD Remote Control Panel
ECB Series
PIN Num.
Signal Description
PIN Num.
1
CANH
1
2
CANL
2
3
PON
3
4
VCC-
4
5
VCC+
5
6
DIS
6
7
5VS-
7
8
5VS+
8
Table 11. PIN number and signal description for LCD remote control
Note
The cables should be as short as possible (less than 32.8 feet / 10 meters) so
that they can handle the signal.

17
3-14. Green terminal (Remote and Parallel select)
Figure 11. Green terminal
PIN #
PIN Assignment
1
GND
2
-ENB
3
ENB
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
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.

18
EN
Figure 13. RS-232 port
Figure 14. RS-232 cable
ECB Series
Computer
PIN Num.
Signal Description
PIN Num.
Signal Description
1
Not used
1
Not used
2
GND
5
GND
3
RXD
3
TXD
4
TXD
2
RXD
5
Not used
Not used
6
Not used
Not used
Table 13. The connection between ECB series and computer
The connection between this ECB-series and the computer is as follows：
Figure 15.
The connection between ECB 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
Model
DC Input (VDC)
Over Voltage
Over Voltage
Alarm
Under Voltage
Under Voltage
Alarm
Shut-down
Restart
Shut-down
Restart
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
OVA only LED prompt, no beeper alarm.
Table 14. Protections Features