Mebay ATS 520 User manual

ATS 520 ATS CONTROLLER
USER MANUAL

ATS 520 ATS CONTROLLER USER MANUAL
2
Software Version
No.
Version
Date
Note
1
V1.0
2020-07-20
Original release.
Chongqing Mebay Technology Co.,Ltd
Add: No6-2,Building 4, Gangan Rd, Jiangbei District, Chongqing.
Tel：[phone]
Fax：[phone]
Web：http://www.mebay.cn
http://www.cqmb.cn
E_mail：[email protected]

ATS 520 ATS CONTROLLER USER MANUAL
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Symbol Description
Symbol
Description
Note
Remind operators to operate correctly, otherwise it may cause
the equipment not to work correctly.
Be care
It is indicated that potential hazards can damage equipment
without proper precautions.
Warning
It is indicated if appropriate preventive measures are not taken,
potentially dangerous situations may result in death, serious
personal injury or significant property losses.

ATS 520 ATS CONTROLLER USER MANUAL
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Warning
1.The installation of this equipment must be carried out by professionals.
2.When installing and operating the controller, please read the entire instruction
manual first.
3.Any maintenance and commissioning of the equipment must be familiar with all the
equipment.
4.Safety standards and precautions in advance, otherwise it may cause personal
injury or damage to related equipment.
5.After the installation of the controller is completed, please verify that all protection
functions are valid.
Be Care
1.Please keep the good connection of the power supply of the controller. Do not
share the connection lines of the positive and negative electrodes of the battery
with the floating charger.
2.During the operation of the engine, do not disconnect the battery, otherwise it may
cause damage to the controller.

ATS 520 ATS CONTROLLER USER MANUAL
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Catalogue
Summary................................................................................................................................... 6
Main Features...........................................................................................................................6
Parameters Display................................................................................................................. 7
Parameters................................................................................................................................8
Overall Dimension and Wiring Diagram............................................................................... 9
Installation instruction............................................................................................................20
Panel and display.................................................................................................................. 21
Generator set start/stop operation...................................................................................... 23
Switch operation and ATS power control...........................................................................25
Prompt status information.................................................................................................... 27
Warning and fault alarm........................................................................................................29
Parameter setting.................................................................................................................. 30
Fault finding............................................................................................................................ 39
Notes:
1. All rights reserved. No part of this duplication may be reproduced in any material
form (including photocopying or storing in any medium by electronic means or others)
without the written permission of the copyright holder.
2. MEBAY Technology reserves the rights to change the contents of this document
without prior notice.

ATS 520 ATS CONTROLLER USER MANUAL
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Summary
The controller is a dual power switching ATS controller, dual power intelligent
switch module with programmable, automatic measurement, automatic control and
LCD display functions. Automatic measurement and control can reduce incorrect
operation. It is an ideal option for ATS.
3.5inch LCD screen display with brand new UI design is adapted in this
controller can display related parameters directly. The LCD screen can display
various faults at the same time. Once the generator does not run normally, it can
effectively achieve protection.
There are Chinese/English interface options, more language can be set
according to user’s request. All the parameters can be configured through the front
face buttons or use programmable interface by RS485 or USB to adjust via PC. It has
compact structure, advanced circuits, simple wiring and high reliability, It can be
widely used in various types of power systems.
Main Features
There are four Models under ATS520 series.
ATS 520: Dual power intelligent switch module.
ATS 520 I: Based on ATS 520, it adds power measurement function.
ATS 520 R: Based on ATS 520, it adds RS485 port.
ATS 520 IR: Based on ATS 520, it adds power measurement function and
RS485 port.
Dual core 32bit high performance single chip microcomputer.
3.5inch LCD screen, Available in Chinese/English languages, user’s language set
if necessary.
System type can set as: "S1 Mains S2 Mains", "S1 Mains, S2 Gen", "S1 Gen S2
Mains", "S1 GenS2 Gen".
Acrylic material is adapted to protect the screen.
PC material panel, waterproof, oil-proof, UV-resistant, good operation feel and
long service life.
USB Port: parameters can be set even without power through USD port to monitor
in real time.
With RS485 communication port, can achieve "Three Remote" functions via
MODBUS protocol.
S1 / S2 independent overcurrent warning or trip alarm function.
Collection and display, gen, mains, power, phase and other parameters.
Display S1/S2 Total kW Energy, Total KVAR Energy, Total Close Times.
For Stored-Energy type ATS, its close relay will active after the PF Input is active.
The genset can be Manual Test on site to achieve start/stop operation.
ATS Controller has function of automatic Re-closing.
Applicable for PC Three-stage, PC Two-stage, CB and CC switch.
Applicable for 2 isolated neutral line.
Real-time clock (RTC); Event log Function (Event log can record 14 items
circularly).

ATS 520 ATS CONTROLLER USER MANUAL
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Automatic/Manual mode. In manual mode, can force the switch to close or open.
Can control two generators to work as Cycle Run mode, Master Run mode and
Balance Run mode.
Suitable for various AC systems (3 phase 4-wires, 3-phase 3-wires, single-phase
2-wire, and 2-phase 3-wire).
Input/output function, status can be shown directly.
Real time clock inside.
Totally 8 relays output, 6 relays function configurable.
Totally 6 configurable switch input, 4 switch function configurable.
Control Protection: Realize automatic ATS switching of generator sets, perfect
fault display and protection functions.
Standard water-proof rubber gasket. The waterproof can reach IP54.
Module design: All the connections are adapted with European connectors so that
installation, connection, repair and replacement can be more easily.
Parameters Display
S1/S2 Voltage Status
Genset Status
Switch Status
S1/S2 Line Voltage
S1/S2 Phase Voltage
S1/S2 Phase
S1 Frequency and genset battery voltage
S2 Frequency
Cont. Power Supply Time
Last Cont. Power Supply
S1/S2 Total Supply Time
S1/S2 Total KWH
S1/S2 Total KVAR
S1/S2 Total Close Times
Total Power-on time
Alarm number and account
Alarm type (Warn Alarm, Fault Alarm)
Alarm event
Inputs, outputs number
Input status, S1/S2 closing input, 1~4 are configurable ports
Output status, S1/S2 closing output, 1~6 are configurable ports
Real-time clock
RS485 Communication
Communication Address
RS485 Baud Rate
Current time

ATS 520 ATS CONTROLLER USER MANUAL
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Parameters
Options
Parameters
Working voltage
DC 8V----36V Continuous
AC 90V-280V(L1N1/L2N2)
Power consumption
Standby：24V：MAX 2W
Working：24V：MAX 6W
AC Voltage Input
1P2W 30VAC-260VAC (ph-N)
2P3W 30VAC-450VAC (L-L)
3P3W 30VAC-450VAC (L-L)
3P4W 30VAC-450VAC (L-L)
AC Voltage Input
1P2W 30VAC-260VAC (L-N)
2P3W 30VAC-450VAC (L-L)
3P3W 30VAC-450VAC (L-L)
3P4W 30VAC-450VAC (L-L)
MAX Accumulating Time
99999.9Hours (Min Store time:6min)
Closing S1 output
250V/16 AMP Non-contact normally Open output
Closing S2 output
250V/16 AMP Non-contact normally Open output
Programmable Relay
output 1-6
250V/5 AMP Non-contact normally Open output
Closing S1 input
Available if connecting with Battery -
Closing S2 input
Available if connecting with Battery -
Switch value input 1-4
Available if connecting with Battery -
Working condition
-25-70℃
Storage condition
-30-80℃
Protection Level
IP54：when waterproof rubber gasket is added between
controller and its panel
Insulation strength
Apply AC 2.2kV voltage between high voltage terminal and
low voltage terminal; The leakage current is not more than
3mA within 1min.
Overall dimension
210mm*160mm*50mm
Panel cutout
186mm*142mm
Weight
0.9Kg

ATS 520 ATS CONTROLLER USER MANUAL
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Overall Dimension and Wiring Diagram
Overall Dimension:

ATS 520 ATS CONTROLLER USER MANUAL
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Descriptions of terminal connection
No.
Function
Description
Cable
cross
sectional
area
1
S1 Close Output
Non-contact normally Open output
Capacity: 250V/16A
2.5mm2
2
2.5mm2
3
S2 Close Output
Non-contact normally Open output
Capacity: 250V/16A
2.5mm2
4
2.5mm2
5
Aux.
Output 1
Normally Close
Default: ATS Power L1
250V/5AMP Relay contact Output
1.5mm2
6
COM
1.5mm2
7
Normally Open
1.5mm2
8
Aux.
Output 2
Normally Close
Default: ATS Power N
250V/5AMP Relay contact Output
1.5mm2
9
COM
1.5mm2
10
Normally Open
1.5mm2
11
A1
S1 AC System 3P4W voltage input
For single phase, only connect A1, N1
1.5mm2
12
B1
1.5mm2
13
C1
1.5mm2
14
N1
1.5mm2
15
A2
S2 AC System 3P4W voltage input
For single phase, only connect A2, N2
1.5mm2
16
B2
1.5mm2
17
C2
1.5mm2

ATS 520 ATS CONTROLLER USER MANUAL
11
18
N2
1.5mm2
19
B-
Connected with negative of starter battery.
2.5mm2
20
B+
Connected with positive of starter battery.
2.5mm2
21
S1 Close Output
Detect the S1 ATS closing status,
Ground connected is active.
1.5mm2
22
S2 Close Output
Detect the S2 ATS closing status,
Ground connected is active.
1.5mm2
23
Aux. Input 1
User-defined.
Ground connected is active.
1.5mm2
24
Aux. Input 2
1.5mm2
25
Aux. Input 3
1.5mm2
26
Aux. Input 4
1.5mm2
27
Aux. Output 3
User-defined.
250V/5AMP Non-contact normally Open
output.
1.5mm2
28
1.5mm2
29
Aux. Output 4
1.5mm2
30
1.5mm2
31
Aux. Output 5
1.5mm2
32
1.5mm2
33
Aux. Output 6
1.5mm2
34
1.5mm2
35
IA In
CT Secondary A-Phase current input
1.5mm2
36
IA Out
1.5mm2
37
IB In
CT Secondary B-Phase current input
1.5mm2
38
IB Out
1.5mm2
39
IC In
CT Secondary C-Phase current input
1.5mm2
40
IC Out
1.5mm2
41
RS485_A+
RS485 Communication Port
A 120 Ω shielded wire and good grounding
are recommended
1.0mm2
42
RS485_B-
1.0mm2
43
RS485_SCR
1.0mm2
USB-B
For PC operation and control
ATS520 Typical Wiring Diagram
The following is a full-function application diagram of the ATS controller series.
ATS520 and ATS520R have no current sampling input. Please omit the parts related
to current in the application diagram.
Auxiliary Output 6 is default set as Genset Start Output (Normally Open) and
there is only normally close contact in it. The controller also can control the genset

ATS 520 ATS CONTROLLER USER MANUAL
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start even if there is no power supply. If DC Power is selected, Genset Start Output
port can be set as other items.
ATYS3 Wiring Diagram
Parameters Setting
1
Switch Type
PC Three-stage
2
Aux. Output 1
ATS Power L
3
Aux. Output 2
ATS Power N
4
Aux. Output 4
S1 Open Control
5
Aux. Output 6
Gen Start Output
12 1411 13 8 9 6 21 22 19 716 1815 17 10
5
MECHANICAL INTERLOCK
L1 L2 L3 N
317 315 316 314 102 101 84 94 81 91
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
ICOM
IA
IB
IC
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3 AUX OUT 4 AUX OUT 5
Remote
Start
R1 S1 T1 N1
S1 AC VOLTAGE INPUT
(AC0-300V)
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
S1 CLOSE
S1 CLOSE INPUT
S2 CLOSE INPUT
MODE: ATS520
ATYS3
USB
12 3 429 30
S2 CLOSE OPEN
R2 S2 T2 N2
S2 AC VOLTAGE INPUT
(AC0-300V)
GND
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
OUTPUT
(16A)
OUTPUT
(16A)
OUTPUT
20A 10A 10A 20A 10A 10A

ATS 520 ATS CONTROLLER USER MANUAL
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SGQ-N/T Wiring Diagram
Parameters Setting
1
Switch Type
PC Two-stage
2
Aux. Output 1
ATS Power L
3
Aux. Output 2
ATS Power N
4
Aux. Output 6
Gen Start Output
12 1411 13 8 9 21 22 19 716 1815 17 10
5
MECHANICAL INTERLOCK
L1 L2 L3 N
A2 B2 A1 B1 a2 b2 a1 b1
ICOM
IA
IB
IC
R1 S1 T1 N1
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
MODE: ATS520
SGQ-N/T
USB
1 2 3 4
R2 S2 T2 N2
6
S1 AC VOLTAGE INPUT
(AC0-300V)
S1 CLOSE
S1 CLOSE INPUT S2 CLOSE INPUT
S2 CLOSE S2 AC VOLTAGE INPUT
(AC0-300V)
GND
OUTPUT
(16A)
OUTPUT
(16A)
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3 AUX OUT 4 AUX OUT 5
Remote
Start
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
20A 10A 10A 20A 10A 10A

ATS 520 ATS CONTROLLER USER MANUAL
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SGQ-M Wiring Diagram
Parameters Setting
1
Switch Type
PC Two-stage
2
Aux. Output 1
ATS Power L
3
Aux. Output 2
ATS Power N
4
Aux. Output 6
Gen Start Output
12 1411 13 8 6 21 22 19 716 1815 17 10
5
MECHANICAL INTERLOCK
L1 L2 L3 N
C1 C2 A2 B2 a2 b2 a1 b1
ICOM
IA
IB
IC
R1 S1 T1 N1
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
MODE: ATS520
SGQ-M
USB
12 3 4
R2 S2 T2 N2
9
B1A1C0
S1 AC VOLTAGE INPUT
(AC0-300V)
S1 CLOSE
S1 CLOSE INPUT S2 CLOSE INPUT
S2 CLOSE S2 AC VOLTAGE INPUT
(AC0-300V)
GND
OUTPUT
(16A)
OUTPUT
(16A)
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3 AUX OUT 4 AUX OUT 5
Remote
Start
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
20A 10A 10A 20A 10A 10A

ATS 520 ATS CONTROLLER USER MANUAL
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VITZRO/PHETENG Wiring Diagram
Parameters Setting
1
Switch Type
CB/CC
2
Aux. Output 1
ATS Power L
3
Aux. Output 2
ATS Power N
4
Aux. Output 4
S1 Open Control
5
Aux. Output 5
S2 Open Control
6
Aux. Output 6
Gen Start Output
12 1411 13 821 22 19 716 1815 17 10
5
MECHANICAL INTERLOCK
L1 L2 L3 N
2514
ICOM
IA
IB
IC
R1 S1 T1 N1
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
S1 CLOSE
MODE: ATS520
VITZRO/PHETENG
USB
12 3 4
R2 S2 T2 N2
(AC0-300V)
29 30 31 326 9
A2 A1 B2 B1 AT2 AT1 BT2 BT1
S1 AC VOLTAGE INPUT
(AC0-300V)
S1 CLOSE INPUT S2 CLOSE INPUT
S2 AC VOLTAGE INPUT
GND
OUTPUT (16A) S2 CLOSE OUTPUT (16A) S1 OPEN OUTPUT S2 OPEN OUTPUT
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3 AUX OUT 4 AUX OUT 5
Remote
Start
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
20A 10A 10A 20A 10A 10A

ATS 520 ATS CONTROLLER USER MANUAL
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Contactor Wiring Diagram
Parameters Setting
1
Switch Type
CB/CC
2
Aux. Output 6
Gen Start Output
3
Continuously Close
1-Enable
16 1815 17
MECHANICAL INTERLOCK
L1 L2 L3 N
ICOM
IA
IB
IC
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
MODE: ATS520 USB
11
R2 S2 T2 N2
S2 AC VOLTAGE
INPUT (AC0-300V)
112 13 14 19
GND
221 22
S1 CLOSE INPUT S2 CLOSE INPUT
319
GND
4
R1 S1 T1 N1
S1 AC VOLTAGE
INPUT(AC0-300V)
Contactor Contactor
S1 CLOSE S2 CLOSE
OUTPUT (16A) OUTPUT (16A)
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3 AUX OUT 4 AUX OUT 5
Remote
Start
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
20A 10A 10A
20A
10A 10A

ATS 520 ATS CONTROLLER USER MANUAL
17
ATYSM3S Wiring Diagram
Parameters Setting
1
Switch Type
PC Three-stage
2
Aux. Output 1
ATS Power L
3
Aux. Output 2
ATS Power N
4
Aux. Output 4
S1 Open Control
5
Aux. Output 6
Gen Start Output
12 1411 13 8 6 9 21 22 19 716 1815 17 10
5
MECHANICAL INTERLOCK
L1 L2 L3 N
317 315 313 314 14 24 11 21
ICOM
IA
IB
IC
R1 S1 T1 N1
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
MODE: ATS520
ATYSM3S
USB
12 3 429 30
R2 S2 T2 N2
101 102201 202
S1 AC VOLTAGE INPUT
(AC0-300V)
S1 CLOSE
S1 CLOSE INPUT S2 CLOSE INPUT
S2 CLOSE OPEN S2 AC VOLTAGE INPUT
(AC0-300V)
GND
OUTPUT
(16A)
OUTPUT
(16A)
OUTPUT
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3 AUX OUT 4 AUX OUT 5
Remote
Start
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
20A 10A 10A 20A 10A 10A

ATS 520 ATS CONTROLLER USER MANUAL
18
Breaker Wiring Diagram
Parameters Setting
1
Switch Type
CB/CC
2
Aux. Output 4
S1 Open Control
3
Aux. Output 5
S2 Open Control
4
Aux. Output 6
Gen Start Output
5
MCH:Stored Energy Motor; MN:Under Voltage Trip;
MX:Open Relay;XF:Close Relay;
16 1815 17
MECHANICAL INTERLOCK
L1 L2 L3 N
ICOM
IA
IB
IC
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
MODE: ATS520 USB
11
R2 S2 T2 N2
112 13 14 2 29 31 3 4
R1 S1 T1 N1
Breaker Breaker
MCH
MN
MX
XF
MCH
MN
MX
XF
30 19
GND
3221 22
S1 CLOSE S2 CLOSE INPUT INPUT
S1 AC VOLTAGE
INPUT(AC0-300V)
S2 AC VOLTAGE
INPUT (AC0-300V)
S1 CLOSE S1 OPEN
OUTPUT
(16A)
OUTPUT
S2 OPEN
OUTPUT
S2 CLOSE
OUTPUT
(16A)
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3
AUX OUT 4
AUX OUT 5
Remote
Start
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
20A 10A
10A 20A
10A 10A

ATS 520 ATS CONTROLLER USER MANUAL
19
ASCO Series 230 RTS Wiring Diagram
Parameters Setting
1
Switch Type
PC Three-stage
2
Aux. Output 1
ATS Power L
3
Aux. Output 2
ATS Power N
4
Aux. Output 4
S1 Open Control
5
Aux. Output 6
Gen Start Output
12 1411 13 8 6 9 21 22 19 716 1815 17 10
5
MECHANICAL INTERLOCK
L1 L2 L3 N
CIOII 11 21 14 24
ICOM
IA
IB
IC
R1 S1 T1 N1
R1
S1
T1
N1
R2
S2
T2
N2
S1 POWER INPUT S2 POWER INPUT
MODE: ATS520
ASCO Series 230
USB
1 2 3 429 30
R2 S2 T2 N2
L N
S1 AC VOLTAGE INPUT
(AC0-300V)
S1 CLOSE
S1 CLOSE INPUT S2 CLOSE INPUT
S2 CLOSE OPEN S2 AC VOLTAGE INPUT
(AC0-300V)
GND
OUTPUT
(16A)
OUTPUT
(16A)
OUTPUT
BATTERY
19 20
(DC8-36V)
-+
23 24 25 26 29 3027 28 31 32 35 36 37 38 39 40
IA IB IC ICOM
41 42 43
SCR
B
A
AUX INPUT 1 AUX INPUT 2 AUX INPUT 3 AUX INPUT 4
RS485LOAD CURRENT(AC0-5A)
AUX OUT 3 AUX OUT 4 AUX OUT 5
Remote
Start
33 34
B+B-
Generator
MAX 5A MAX 5A MAX 5A MAX 5AINPUTS
20A 10A 10A
20A 10A 10A
WARNING: When generator is on-load, C. T. secondary must not be open
circuit, Otherwise, the high voltage generated will pose a danger to personal safety.

ATS 520 ATS CONTROLLER USER MANUAL
20
Installation instruction
The controller is fixed by four special fixing members and screws, and the screws
of the metal fasteners cannot be too tight.
Panel Cutout: W186mm*H142mm.
Note: If the controller is installed directly in the genset shell or other fluctuated
equipment, the rubber pad must be installed.
Battery Voltage Input
ATS 520 controller is suitable for 8-36V DC battery voltage. Battery negative must be
reliably connected to the enclosure of the engine. The controller power supply B+
and B- must be connected to battery positive and negative, and the wire size must
not be less than 2.5mm2.
NOTE:
In case of floating charger connect charger output to battery positive and negative
directly, then, connect battery positive and negative poles to controller positive and
negative power supply.
Output and relay expansion
Note: All outputs of the controller are relay contacts. The maximum current
capacity is described in the "Parameters" in this manual. Please use it in the relay
current capacity. If an extended relay is needed, add a continuous current diode
(when the extended relay coil is DC) or a resistance-capacitance loop (when the
extended relay coil is AC) to both ends of the coil to prevent interference with the
controller or other equipment.