ATO EM15-SP Series User manual

User Manual
EM15-SP Series VFD
ATO Inc
Address: 23555 GOLDEN SPRINGS DR. K-1, DIAMOND BAR, USA
Phone:
1800-585-1519
Zip code: 91765
Website : https://www.ato.com/

EM15-SP User Manual Preface
Preface
Thank you for purchasing the solar drive developed by our company.
Features:
⚫MPPT algorithm of fast tracking of maximum power point of PV cells, efficiency >99%.
⚫Solar battery working point voltage can be manually or automatically MPPT tracking.
⚫All weather automatic operation,can also be manually or automatically,
⚫Realize”sunrise work and sunset sleep”.
⚫35 kinds protection function. including auto detecting short circuit after power on.
⚫Auto sleep function/pump dry protect/low frequency protection/over load protection and etc.
⚫Full protections:overload,over current, overvoltage,under voltage,short circuit, dry pumping etc.
⚫Output frequency range: V/F(0~3000hz); vector control(0~300HZ).
⚫Overload capacity:60s with 150% of rated current,3s with 180% of rated current.
⚫Speed accuracy:±0.5%(SVC);±0.02%(VC).
⚫Pulse setting input:0Khz~100Khz.
⚫Remote control, support RS232/RS485 protocol, terminal control, analog control.
Before unpacking, please check carefully:
1. Whether the nameplate model of solar drive are consistent with your order ratings. The box contains the solar
drive , user manual.
2. Whether the solar drive is damaged during transportation. If you find any omission or damage, please contact
us or your local supplier immediately.
First-time Use
For the users who use this product for the first time, read the manual carefully. If in doubt concerning some
functions or performances, contact the technical support personnel to ensure correct use.
Due to the continuous improvement of solar inverter, this document will be updated without prior notice.
Solar drive complies with the following international standards.All products have passed the CE certification.
IEC/EN61800-5-1: 2003 Variable speed electric drive system safety requirements;
IEC/EN61800-3: 2004 Variable speed electric drive system, Part 3: The Electro Magnetic Compatibility (EMC)
Standards of Product and its specific testing methods.
Version:V1.0.0

Contents EM15-SP User Manual
Contents
1. Safety Information and Precautions......................................................................................................................... 1
1.1 Safety Information......................................................................................................................................... 1
2. Product Information................................................................................................................................................. 3
2.1 Designation Rules.......................................................................................................................................... 3
2.2 EM15-SP series.............................................................................................................................................. 3
2.3 Product appearance and installation dimension............................................................................................. 4
2.3.1 Product appearance............................................................................................................................. 4
2.3.2 EM15-SP VFD appearance and installing dimension(mm).................................................................4
2.3.3Appearance and installation dimension of external keypad (keypad tray).......................................... 5
3.Installation of variable frequency drive.................................................................................................................... 6
3.1 Installation environment................................................................................................................................ 6
3.2 Installation direction and space...................................................................................................................... 6
3.3 Sketch and Description of Main Circuit Terminals........................................................................................ 7
3.3.1 Function and description of Main Circuit Terminals.......................................................................... 7
3.4 Control Circuit and Main Circuit Terminals Description .............................................................................. 8
3.4.1 Control Circuit and Main Circuit Wiring............................................................................................ 8
3.4.2 Control Circuit Terminal Layout......................................................................................................... 9
3.4.3 Description of control circuit terminals.............................................................................................. 9
3.4 Collection Diagram For Different Motor..................................................................................................... 10
3.5. 1 The wiring of water-level automatic control.....................................................................................11
4 Operation and display............................................................................................................................................. 13
4.1 Instruction of operation and display ............................................................................................................ 13
4.2 Function Code Table.................................................................................................................................... 14
5. Description of Function Codes.............................................................................................................................. 19
F0: Basic Function Parameters Group............................................................................................................... 19
F1 Motor Parameter........................................................................................................................................... 22
F4 Input Terminals............................................................................................................................................. 23
F9 Faults and protection parameters.................................................................................................................. 24
FE Solar water pump control parameters .......................................................................................................... 25
FP User password parameters............................................................................................................................ 28
6. Fault Diagnosis and Solution................................................................................................................................. 29
6.1 FaultAlarm and Countermeasures............................................................................................................... 29
Appendix I. Modbus communication protocol.......................................................................................................... 31
I. About Protocol................................................................................................................................................ 31
II. Application Methods..................................................................................................................................... 31
III. Bus structure................................................................................................................................................ 31

EM15-SP User Manual 1. Safety Information and Precautions
1
1. Safety Information and Precautions
In this manual, the notices are graded based on the degree of danger:
Danger: Indicates that failure to comply with the notice will result in severe personal injury or even death.
Warning: Indicates that failure to comply with the notice will result in personal injury or property damage.
Read this manual carefully so that you have a thorough understanding. Installation, commissioning or maintenance
may be performed in conjunction with this chapter. Our company will assume no liability or responsibility for any
injury or loss caused by improper operation.
1.1 Safety Information
Danger
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Do not use damaged or missing components solar drive. Failure to comply will result in personal injury.
Please use the electric motor with upper B insulation class. Failure to comply will result in personal injury.
Install the solar drive on incombustible objects such as metal, and keep it away from combustible materials.
Failure to comply may result in a fire.
Wiring must be performed only by qualified personnel under instructions described in this manual. Failure to
comply may result in unexpected accidents.
A circuit breaker must be used to isolate the power supply and the solar drive. Failure to comply may result
in a fire.
Ensure that the power supply is cut off before wiring. Failure to comply may result in electric shock.
Connect the solar drive to ground properly by standard. Failure to comply may result in electric shock. Cover
the solar drive properly before power-on to prevent electric shock.
Do not open the solar inverter’s cover after power-on to prevent from electric shock.
Do not touch the solar drive with wet hand and its peripheral circuit to prevent from electric shock.
Do not touch the terminals of the solar drive (including the control terminals). Failure to comply may result
in electric shock.
Do not touch the U, V, W terminal or motor connecting terminals when solar drive automatically does
safety testing for the external high-voltage electrical circuit. Failure to comply may result in electric shock.
Do not go close to the equipment when selected the restart function. Failure to comply may result in
personal injury.
Do not touch the fan or the discharging resistor to check the temperature. Failure to comply will result
in personal injury.
Signal detection must be performed only by qualified personal during operation

1. Safety Information and Precautions EM15-SP User Manual
2
Warning:
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When two solar inverters are laid in the same cabinet, arrange the installation positions properly to ensure the
enough cooling effect.
Do not drop wire residue or screw into the solar drive. Failure to comply will result in damage to the solar
drive.
Never connect the power supply cables to the output terminals (U, V, W) of the solar drive. Failure to
comply will result in damage to the solar drive.
Make sure that all the connecting wires comply with the requirement of EMC and the safety standard in
the region. Use wire sizes recommended in the manual. Failure to comply may result in accidents.
Never connect the braking resistor between the DC bus terminals (P+) and (P-). Failure to comply may result
in a fire.
Do not perform the voltage resistance test on any part of the solar drive because such test has been done in
the factory. Failure to comply will result in accidents.
All peripheral devices must be connected properly under the instructions described in this manual. Failure
to comply will result in accidents.
Note the danger during the rotary running of motor when check the parameters. Failure to comply will
result in accidents.
Do not change the factory default settings of the solar drive. Failure to comply will result in damage to the
solar drive.
Avoid objects falling into the solar drive when it is running. Failure to comply will result in damage to solar
drive.
Do not start/stop the solar drive by turning the contactor ON/OFF. Failure to comply will result in damage
to the solar drive.

EM15-SP User Manual 2. Product Information
3
2. Product Information
2.1 Designation Rules
EM15 - SP -015
ATO-EM15
solar drive
SP:Solar Pump
1: DC 310 / AC 1PH 220V In
AC 3PH 220V Output
Product Series Product Type Output Voltage Adaption Motor
1
3: DC 540V/AC 3PH 380V In
AC 3PH 380V Output
5d5: 5.5KW
015: 15KW
Diagram 2-1 Designation rules
2.2 EM15-SP series
Table 2-1EM15-SP Models and technical datas
EM15-SP1[S]
Description
d75
1d5
2d2
004
5d5
7d5
011
015
018
022
030
037
045
DC input (+, -)
Rated power/KW
0.75
1.5
2.2
4
5.5
7.5
11
15
18.5
22
30
37
45
Min. DC voltage/V
120
Max.DC voltage/V
400
Recommended MPPT
range /V
250~400
AC output(U, V, W)
Output current/A
3.8
5.1
9
13
25
32
45
60
75
91
112
150
176
EM15-SP3
Description
d75
1d5
2d2
004
5d5
7d5
011
015
018
022
030
037
045
055
075
090
110
132
160
200
220
250
280
315
355
400
DC input (+, -)
Rated power/KW
0.75
1.5
2.2
4
5.5
7.5
11
15
18.5
22
30
37
45
55
75
90
110
132
160
200
220
250
280
315
355
400
Min. DC voltage/V
280
Max.DC voltage/V
750
Recommended MPPT
range /V
350~750
AC output(U, V, W)
Output current
2.1
3.8
5.1
9
13
17
25
32
37
45
60
75
91
112
150
176
210
253
304
377
426
465
520
585
650
725
Output frequency
0~50/60Hz
Power factor
>0.99
Communication mode
RS485 communication
Protection class
IP20
Ambient temperature
-10℃~ +40℃(ambient temperation at 40℃~50℃，please keep derated use)
Storage temperature
-20℃~ +60℃
Humidity
Smaller than 95%RH, non-condensation
Cooling
Forced Air cooling
Altitude
Lower than 1000 m
Humidity
Less than 95%RH, without condensing
Vibration
Less than 5.9 m/s2 (0.6 g)
1S: DC 310 / AC 1PH 120V In
AC 1PH 220V Output

2. Product Information EM15-SP User Manual
4
2.3 Product appearance and installation dimension
2.3.1 Product appearance
Diagram 2-2 Product appearance (With potentiometer)
2.3.2 EM15-SPvariabe frequency drive appearance and installing dimension(mm)
Diagram 2-3 Appearance and installation dimension of EM15 series (Plastic housing structure)
Matching inverter
Appearance and installing dimension (Unit: mm)
Voltege
Power Range
W
W1
H
H1
D
d
1PH 220V
0.75~2.2kW
120
108
205
195
166
Φ4.5
3PH 220V
0.75~2.2kW
3PH 380V
4~5.5kW
3PH 220V
4~5.5kW
162
148
250
238
191
Φ5.5
3PH 380V
7.5~11kW
3PH 220V
7.5~11kW
223
207
323
307
207
Φ5.5
3PH 380V
15~22kW

EM15-SP User Manual 2. Product Information
5
Diagram 2-4 Appearance and installation dimension of EM15 series (Metal housing structure)
Matching inverter
Appearance and installing dimension (Unit: mm)
Voltege
Power Range
W
W1
H
H1
D
d
3PH 220V
15~18.5kW
300
220
540
500
240
Φ7
3PH 380V
30~37kW
3PH 220V
22kW
340
260
580
540
270
Φ10
3PH 380V
45~55kW
3PH 220V
37~45KW
410
260
610
575
280
Φ12
3PH 380V
75~90kW
3PH 380V
110~132kW
460
320
710
690
335
Φ12
3PH 380V
160~220kW
535
360
885
830
370
Φ12
3PH 380V
250~315kW
650
360
1040
985
415
Φ12
3PH 380V
355~400kW
815
600
1350
1250
445
Φ12
2.3.3Appearance and installation dimension of external keypad (keypad tray)
Diagram 2-5 Appearance and installation dimension of external keypad (keypad tray)
H

3. Installation of variable frequency drive EM15-SP User Manual
6
3.Installation of variable frequency drive
3.1 Installation environment
1. The place with indoor vents or ventilation devices.
2. The environment temperature shall be -10℃~40℃. If the temperature is over 40℃but less than 50℃,
better to take down the cover of variable frequency drive or open the front door of cabinet to facilitate
heat dissipation.
3. Try to avoid high temperature and wet place; the humidity shall be less than 90% without frost deposit.
4. Avoid direct sunlight.
5. Keep away from flammable, explosive and corrosive gas and liquid.
6. No dust, floating fiber and metal particles.
7. Install on the place without strongly vibration. And the vibration should be not over 0.6G, Especially
pay attention to far away from the punching machine, etc.
8. Keep away from electromagnetic interference source.
3.2 Installation direction and space
In order to not affect the service life of variable frequency drive and reduce its performance, note
for its installation direction and space and correctly fasten it.
Diagram3-1 Ventilating duct installation dimension diagram of variable frequency drive
Power class
Installation dimension
A
B
≤7.5kW
≥ 20mm
≥ 100mm
11kW - 30kW
≥ 50mm
≥ 200mm
≥ 37kW
≥ 50mm
≥ 300mm
Please install the variable frequency drive vertically, to send out the heat upward, and pay attention to
direction of variable frequency drive to avoid inversion.
If there are several units of variable frequency drive installed, please install them side by side, do not to
install up and down.

EM15-SP User Manual 3. Installation of variable frequency drive
7
3.3 Sketch and Description of Main Circuit Terminals
3.3.1 Function and description of Main Circuit Terminals
Single phase 220V output：EM15-SP1S-d75 ~ EM15-SP1S-011
Three phase 220V output：EM15-SP1-d75~EM15-SP1-011
Three phase 380V output：EM15-SP3-d75～EM15-SP3-022
Three phase 380V output：EM15-SP3-030～EM15-SP3-090
Three phase 380V output：EM15-SP3-110～EM15-SP3-400
Terminal symbol
Function description
L,N or R,T
DC power input terminals
P+,PB
Braking resistor connectin
P,P+
External DC reactor connecting terminals,shorted by bronze before delivery
P+,P-
DC power input terminals；External brake unit DC output terminal
or E/PE
Grounding terminal
U,V,W
Three-phase AC power output terminals