Hypontech HMS-600W User manual

HMS-600W / 800W
Micro Inverter
USER MANUAL
V1.00

CATALOGUE
1. Important Safety Instructions ........................................................................... 4
1.1 Radio interference statement .......................................................................................... 4
1.2 Safety requirements ......................................................................................................... 5
2. Micro Inverter System Introduction ................................................................ 7
3. Working Mode .................................................................................................... 8
3.1 Work Mode ....................................................................................................................... 8
4. UNPACKING ......................................................................................................... 9
3.1 Product Overview ............................................................................................................. 9
5. INSTALLING ....................................................................................................... 10
5.1 Installation Requirement ................................................................................................ 10
5.2 Mounting ......................................................................................................................... 11
6. START UP AND OPERATION ........................................................................... 14
6.1 Safety Check Before Start Up ......................................................................................... 14
6.2 Inverter LED Indicators ................................................................................................... 14
7. DISCONNECTING FROM VOLTAGE SOURCES ............................................. 15
8. TECHNICAL PARAMETERS ............................................................................... 16
9. TROUBLE SHOOTING ....................................................................................... 18
10. ACCESSORIES SUMMARY ............................................................................ 21

HMS-600W / 800W USER MANUAL 4
1. Important Safety Instructions
1. The Micro Inverter is designed and tested according to international safety
requirements. However, certain safety precautions must be taken during installation
and operation. Installation personnel must read and follow all instructions,
precautions, and warnings in this installation manual.
2. Specifications subject to change without notice - please ensure you are using the
most recent update found at https://www.hypon.com.
1.1 Radio interference statement
CE EMC Compliance: The equipment can comply with CE EMC, which are designed to
protect against harmful interference in a residential installation. The equipment could
radiate radio frequency energy and this might cause harmful interference to radio
communications if not following the instructions when installing and using the equipment.
But there is no guarantee that interference will not occur in a particular installation. If this
equipment causes harmful interference to radio or television reception, the following
measures might resolve the issues:
1.Relocate the receiving antenna and keep it well away from the equipment.
DANGER, WARNING AND
CAUTION CE MARKS
HIGH VOLTAGE
AVOID CONTACT
Etiquette Onduleur.
HIGH TEMPERATURE
AVOID CONTACT
USER MANUAL IN PACK
DO NOT DISPOSE WITH
HOUSEHOLD WASTE

5 HMS-600W / 800W USER MANUAL
2. Place the shield between the Micro Inverter and the receiving antenna, such as
metal.
3.Consult the dealer or an experienced radio/TV technical for help.
Changes or modifications not expressly approved by the party responsible for
compliance may void the user’s authority to operate the equipment.
1.2 Safety requirements
Only qualified personnel can install and replace inverters
Before installing or using the Micro Inverter, please read all instructions and
cautionary markings in the technical documents and on the Micro Inverter system and the
solar-array
Perform all electrical installations in accordance with local electrical codes
Do NOT disconnect the PV module from the Micro Inverter without disconnecting
the AC power.
Be aware that the body of the Micro Inverter is the heat sink and can reach a
temperature of 80°C. To reduce risk of burns, do not touch the body of the Micro
Inverter.
Do NOT attempt to repair the Micro Inverter. If it fails, contact Customer Support
([phone]) to start the replacement process. Damaging or opening the Micro
Inverter will void the warranty.
Do NOT expose the connection to directed, pressurized liquid (water jets, etc.).
Do NOT expose the connection to continuous immersion.
Do NOT expose the AC connector to continuous tension (e.g., tension due to pulling
or bending the cable near the connection).
Do NOT allow contamination or debris in the connectors.
Use only the connectors and cables provided.
Use the cable and connectors only when all parts are present and intact.
Use the terminator to seal the conductor end of the Engage Cable; no other method
is allowed.
The external protective earthing conductor is connected to the inverter protective
earthing terminal through AC connector.
When connecting, connect the AC connector first to ensure the inverter earthing

HMS-600W / 800W USER MANUAL 6
then do the DC connections.
When disconnecting, disconnect the AC by opening the branch circuit breaker first
but maintain the protective earthing conductor in the branch circuit breaker connect to
the inverter, then disconnect the DC inputs.
In any circumstance, do not connect DC input when AC connector is unplugged.
Please install isolation switching devices on the AC side of the inverter.

7 HMS-600W / 800W USER MANUAL
2. Micro Inverter System Introduction
The Micro Inverter is used in utility-interactive grid-tied applications, comprised of two
key elements:
 Micro Inverter
 Router
This integrated system improves safety; maximizes solar energy harvest;
increases system reliability, and simplifies solar system design, installation,
maintenance, and management.
Micro Inverters maximize PV energy production
The Micro Inverter ensures top performance from the array by maximizing the
performance of the module within the array when PV modules in the array are
affected by shading.
More reliable than centralized or string inverters
The distributed Micro Inverter system ensures that no single point of system
failure exists across the PV system. Micro Inverters are designed to operate at full
power at ambient temperatures of up to +65°C (+149° F). The inverter housing is
designed for outdoor installation and complies with the IP67 environmental
enclosure rating.

HMS-600W / 800W USER MANUAL 8
3. Working Mode
3.1 Work Mode
1. Normal: Under this mode, Micro Inverter is operating normally and convert DC
power into AC power to support the house loads and feed in to Public Grid.
2. Zero Export Control（optional,HM-2000D）: Under this mode Micro Inverter’s
generation is limit base on the current house loads, there will be no extra power
feed in to the Public Grid.
3. Stand by: There are several circumstance that Micro Inverter will stay in Standby
mode:
- The current condition is contradicted with Micro Inverter operating requirement.
- No house loads or the Export control value has been set as “0” on the HM-2000D
under the Zero Export Control mode.

9 HMS-600W / 800W USER MANUAL
4. UNPACKING
3.1 Product Overview
The total size of HMS- 600W / 800W is 230(width) ×190(height) ×46.5(depth) mm. It
has 2 pairs of PV input terminals.
The detail description is shown below:
Note: None of the accessories above is included in the package and should be purchased
separately.
Mark Num. Description
1 MC4 Disassembly tool
2 AC male connector end cap
3 AC female connector end cap
4 DC Extension Cable
5 M8 screws(prepared by the installer-self)
6 AC Extension Cable
Model Maximum units per branch
HMS-600W 7
HMS-800W 5

HMS-600W / 800W USER MANUAL 10
5. INSTALLING
5.1 Installation Requirement
1. Planning the cable length Determine whether to use an extension cable.
2. Please install the inverter(s) in places that can avoid inadvertent contact.
3. The installation must be carried out with the equipment disconnected from the grid
(power disconnect switch open) and with the photovoltaic modules shaded or
isolated.
4. Installation method, location and surface must be fitting for the inverter’s weight and
dimensions.
5. The inverter performance peaks at ambient temperature lower than 65℃.
6. Avoid electromagnetic interference that can compromise the correct operation of
electronic equipment.
7. Install only on structures specifically conceived for photovoltaic modules (supplied by
installation technicians).
8. Install the Micro Inverter and all DC connections under the PV module to avoid direct
sunlight, rain exposure, snow buildup, UV, etc.
9. Install Micro Inverter underneath of the PV modules to make sure it works in the
shadow. If this condition cannot be met, might trigger the inverter production de-
rating.

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5.2 Mounting
5.2.1 Micro Inverter Installation
1. Mark the position of each Micro Inverter on the rail, according to the PV module
layout.
2. Fix the screw on the rail.
3. Mount Micro Inverter at each of these locations and tighten the screws.
5.2.2 AC Connection
1. Insert the AC extension cable into the AC connectors of the two inverters
until it clicks.
2. Connect the AC end cable to the distribution box, and wire it to the local
grid network.
3. Please plug the AC end Cap to make last connection water and dust-proof.
End Cap’s ingress protection is IP65 and cannot be soaked in water.
4. Push the buckle open with the tool as shown, rotate the latch as shown,
unplug the male and female ends to unlock the cables.
Check all the wires of the installation before connecting to the grid to
be sure they match. Wrong cable polarity can damage the Micro
Inverters, such an issue is not covered by the warranty.

HMS-600W / 800W USER MANUAL 12
5.2.3 Installation Map
1. Peel the removable serial number label from each Micro Inverter.
2. Affix one serial number label to the respective location on the installation map
and affix another to the PV module frame which is easy to see. The warranty
cards can be obtained from the appendix of this manual or Hypontech website:
https://www.hypon.com/.
5.2.4 PV Connection
1. Mount the Micro Inverter under the PV modules.
2. Connect the PV modules’ DC cables to the DC input side of the Micro Inverter.
5.2.5 Place a Warning Notice
A warning notice shall be placed in such a position that any person gaining access to live
parts will be warned in advance of the need to isolate those live parts from all points of
supply.
Special attention should be paid that the power supply, measuring circuits (sense lines)
and other parts may not be isolated from the network when the switch of the interface
protection is open.

13 HMS-600W / 800W USER MANUAL
As a minimum, warning labels shall be placed:
 On the switchboard (DNO panel and consumer unit) that has the micro-generator
connected to it;
 On all switchboards in between the consumer unit and the micro-generator itself;
 On, or in the micro-generator itself;
 At all points of isolation for the micro-generator.

HMS-600W / 800W USER MANUAL 14
6. START UP AND OPERATION
6.1 Safety Check Before Start Up
Please check before switching on any voltage resources connected to the inverter:
1. Grid Voltage: Check the grid voltage at point of connection at the inverter complies
with permitted range of the inverter.
2. Mounting of the inverter: Check if the inverter is properly mounted and attached to
the rail.
3. DC Connectors: Check if the DC connectors are installed correctly on terminals.
4. AC Connectors and Wire Assembly: Check if wires are assembled correctly on the AC
side and if the AC connector is properly and securely installed. Check if the AC
connector is firmly plugged into AC terminal.
5. Cables: Check if all cables are reliably connected. Check if the connections are
effective, while the insulations are undamaged.
6. Groundings: Check all groundings using multi-meter and if all exposed metal parts of
the inverter are properly grounded.
7. DC Voltage: Check if the largest open-circuit voltage of PV arrays complies with the
permitted range.
8. DC Polarity: Check if the wires from DC voltage resource are connected to terminals
with correct polarity.
9. Grounding Resistance: Check if the grounding resistance of PV strings >1MOhm using
a multi-meter.
After all installation and checks, close the AC circuit-breaker. The inverter will start to
operate when DC input voltage and grid conditions meet the requirements of inverter
startup.
6.2 Inverter LED Indicators
When the inverter operates, LED symbols on display have the following meanings:

15 HMS-600W / 800W USER MANUAL
7. DISCONNECTING FROM VOLTAGE SOURCES
Before proceeding any operations on inverter, please disconnect the inverter from all
voltage resources as described in this manual.
Following these steps in described sequence are mandatory.
1. Disconnect miniature circuit-breaker and prevent from unintentional reconnections.
2. Use clamps to ensure there is no electrical current in DC wires.
3. Disconnect all DC connections and resources. Unplug the DC connectors, and DO
NOT pull the cables.
4. Use multi-meter to ensure the voltage on DC terminals of inverter is 0.
5. Push the buckle open with the tool as shown,Rotate the latch as shown, unplug the
male and female ends to unlock the cables.
Danger to life due to high voltages.
When an error occurs, DO NOT remove the cover of the inverter onsite.
Improper operations and attempts may induce electric shock.

HMS-600W / 800W USER MANUAL 16
8. TECHNICAL PARAMETERS
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HMS-600W / 800W USER MANUAL 18
9. TROUBLE SHOOTING
Full Error Code and Corrective Measures
When the PV system does not operate normally, we recommend the following solutions
for quick troubleshooting. If an error occurs, the Error code will be displayed on the
inverter’s screen or on the Hypontech’s monitoring App/Web, the red LED will light up.
The corresponding corrective measures are as follows:
Error Code Fault Name Description Corrective Measures
1
Functional fault in
Micro-Controller
Unit (MCU)
MCU abnormal self-check in
start process
Disconnect the inverter from the utility grid and the PV array, and
reconnect it after LED turns off.
If this fault is still being displayed, please contact service.
2
A faulty current
sensor detected
AC current sensor detect
current abnormal in the start
process
Disconnect the inverter from the utility grid and the PV array, and
reconnect it after LED turns off.
If this fault is still being displayed, please contact service.
4
A faulty grid relay
detected
The difference between INV
voltage and output voltage
exceeds limit.
1. Disconnect the inverter from the utility grid and the PV array,
and reconnect it after LED turns off.
2. If the fault persists, measure the phase to phase voltage and
phase to zero and zero to ground voltage with a multimeter to
ensure that the voltage is normal and the zero to ground
voltage value should not be greater than 10V.
3. Disconnect the inverter from the utility grid and the PV array,
and reconnect it after LED turns off.
If this fault is still being displayed, please contact service.
5 PV voltage too high
When the PV voltage of any
circuit is greater than 60V, it
is determined as the PV
voltage is too high.
Check the open-circuit voltages of the strings and make sure it is
below the maximum DC input voltage of the inverter. If the input
voltage lies within the permissible range while the fault occurs,
please contact the service.

19 HMS-600W / 800W USER MANUAL
8
Inverter
temperature too
high
Heat sink and internal
environment temperature
higher than 85 degree
Please confirm:
⒈Whether the airflow to the heat sink is obstructed.
⒉ Whether the installation site is in direct sunlight and ambient
temperature around the inverter is too high.
If all above is normal, contact the service.
9
Utility grid
disconnected
inverter detected grid voltage
failed
⒈If it happens occasionally, it belongs to the short-time
abnormality of the power grid, the inverter will return to normal
operation after detecting that the power grid is normal, and there
is no need to deal with it.
⒉If it cannot be recovered for a long time, please confirm:
①whether the AC circuit breaker is disconnected
②whether the AC terminal or fuse is in good contact
③whether the power supply line is normal
If this fault is still being shown, contact the service.
10
Grid voltage
exceeds the
permissible range
grid voltage exceeds the
Safety regulations
⒈If it happens occasionally, it belongs to the short-time
abnormality of the power grid, the inverter will return to normal
operation after detecting the normal power grid, and there is no
need to deal with it.
2. In case of frequent occurrence but automatic recovery, please
confirm if the grid voltage is outside the permissible range due to
local grid conditions, try to modify the values of the monitored
operational limits after informing the electric utility company first.
⒊If it cannot be recovered for a long time, please confirm:
①whether the AC circuit breaker is disconnected
②whether the AC terminal is in good connection
③whether the power supply line is normal
④whether the AC cable wiring (such as wire length and wire
diameter) complies with the user manual guidance
⑤whether the safety regulation settings are normal
11
Grid frequency
exceeds the
permissible range
grid frequency exceeds the
Safety regulations
⒈If it happens occasionally, it belongs to the short-time
abnormality of the power grid, the inverter will return to normal
operation after detecting the normal power grid, and there is no

HMS-600W / 800W USER MANUAL 20
need to deal with it.
2. In case of frequent occurrence but automatic recovery, please
confirm if the grid voltage is outside the permissible range due to
local grid conditions, try to modify the values of the monitored
operational limits after informing the electric utility company first.
⒊If it cannot be recovered for a long time, please confirm:
①whether the AC circuit breaker is disconnected
②whether the AC terminal is in good connection
③whether the power supply line is normal
④ whether the safety regulation settings are normal
13
EEPROM Error, e.g.
transition
disturbance
Micro CPU read EEPROM
failed
Disconnect the inverter from the utility grid and the PV array, and
reconnect it after LED turns off. If this fault is still being displayed,
please contact the service.
14
Internal
communication
fault
Master CPU communicate
with slave CPU abnormal
Disconnect the inverter from the utility grid and the PV array, and
reconnect it after LED turns off. If this fault is still being displayed,
please contact the service.