3.7 Tmeic_Pvh-L2550E_Installation_Manual_4Gbg0914_Revc1_En.pdf

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G
Grid-Connected
Ph
hotovoltaic Inverter
Installation Manual
Model:    PVH-L2550E
P
P
PVH-L2220E

NOTICE
IMPORTANT SAFETY
Y INSTRUCTIONS / SAVE THESE INSTRU
UCTIONS
・ Make

sure that this insstruction manual is delivered to the end
d user of this
product.

・ Read

this manual before
e installing or operating this product. Kee
ep it in a safe
place for reference.

October 2017
Toshiba Mitsubishi-Electric Industrial Systems Corrporation

©TOSHIBA MITSUBISHI‐ELLECTRIC 
INDUSTRIAL SYSTEMS Co
orporation, 2017 
All Rights Reserved 
C


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1. About this manual
This manual is intended for safely pe
erform installation and wiring works on the grid-connected photovoltaic
inverter (hereafter the inverter). Re
ead carefully the safety precautions and work pro
ocedure beforehand.
Store this manual near the working area in order to be consulted by the workers whe
enever is needed. In
order to correctly and safely operate the inverter, read carefully the Instruction Manual before operating the
inverter.
nd labels in the inverter contain very important instructions to prevent
This manual as well as markings an
harm and injury to workers and operrators and to safely and correctly install, connect and
a use this inverter.
Read this document after fully com
mprehend the following marking and symbols me
eaning. Observe the
instructions given in the document.

IMPORTANT SAFETY
S
INSTRUCTIO

ONS
SAVE THESE INSTRUCTIONS
I
This manual contains importan
nt instructions for the inverter that shall be followed during
installation of the inverter.
1.1. Explanation of markings and sym
mbols
Explanation of markings
Marking

DANGER
WARNING
CAUTION

Meaning of marking
In
ndicates that improper use or handling will result in death or serious
in
njury.
In
ndicates that improper use or handling may lead to death or serious
in
njury.
In
ndicate that improper use or handling may lead to injury to persons
(*2)
o may cause damage to property .
or

(*1)

(*1): “injury to persons” refer to inju
uries, burns, electric shocks and other injuries that will not require hospitalization
or long periods of medical treatment.
o wide-ranging damage to assets and materials.
(*2): “damage to property” refers to

Meaning of symbols
Symbol

Meaning of symbol
o
is prohibited
Indicates that the operation
What is prohibited will be described in or near the symbol in either te
ext or picture form.

!

Indicates mandato
ory action
What is mandatory
y will be described in or near the symbol in either te
ext or picture form.

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Symbol

Meaning of symbol
AC volta
age / current

age / current
DC volta

DC posiitive voltage

DC Neg
gative voltage

Earth grround

Caution, risk of electric shock
g for dangerous voltage
Warning
Caution, risk of electric shock
Energy storage timed discharge

Caution, risk of danger

Caution, hot surface

Refer to
o the operating instructions

Lifting point

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1.2. Limitation of use, disclaimer and disposal
Limitation of use
This product is intended to be
b used as a grid-connected inverter for photovoltaic generation. Any
other use is prohibited.
Make sure to consult with TM
MEIC in case a change in system specifications occurs (like changes in
related equipment or other circumstances,
c
since there may be necessary to ma
ake adjustments to the
system.

Disclaimer
TMEIC assumes no responsib
bility in the following cases.
・ Earthquake and fire that is not originated due to TMEIC responsibility, damage produced by the acts
a damage caused by deliberate or unintentional misuse.

m
of a third party, accidents and
・ Damage or losses accompanied with the operation or not operation of this pro
oduct (Loss of profit,
business halt, etc).
・ Damage caused by using this inverter in a different way as the way described
d in the instruction
manual.
・ Damage caused by incorre
ect operation produced due to the combination with equipment where
TMEIC do not take part.

Disposal
When disposing this inverter or any of its components, have it done by a specia
alist in industrial waste
disposal. Improper disposal may
m result in explosion or produce noxious gases, resulting in injury.
Additionally, local regulations
s regarding disposal of industrial equipment should be observed.
TMEIC assumes no responsiibility for any damage due to improper disposal or any
a other improper use.

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2. Safety Precautions
Installation environment

2.1.

DANGER
Do not install the inverter in a place with flammable gases or explosive gases
s
There is a risk of explosion and fire due to sparks created in circuit breakers or
contactors.
Forbidden
Do not install the inverter outd
doors
Rain and dust will reach high vo
oltage parts, provoking fire or electric shock.
Forbidden
Provide enough space for operation and maintenance in the inverter’s
s
nstallation clearance” in section 5.2 )
installation place (Refer to “In
If the required space is nott provided, maintenance cannot be performed..
Furthermore, since a reduced space
s
reduces the air flow, over temperature may
y
cause a failure.

Mandatory

CAUTION

Do not install the inverter in a hot place, cold place, in a place with high
humidity or in a place with severe temperature change
Changes in components perform
mance and condensation may provoke
performance degradation or failure

Forbidden

Installation Environment：
Ambient temperature: -20～
～50℃
Relative humidity:
15～
～95% (No condensation)
Do not install the inverter in pla
aces where it can be subjected to vibrations (※
※
1) or shocks (※2)
uce performance degradation and failure.
Vibrations or shocks may produ
※1・※2：refer to “Inverter installation environment”
in section 5.1 for details

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Forbidden

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CAUTION
Do not install the inverter in places exposed to air containing salts,
apor or oil steam
corrosive gases (※) and/or va
If installed in a place where one
e of the above elements is present, contact failure
in circuit breakers and switch
hes may occur, and may cause performance
degradation and/ or failure.
※：refer to “Inverter installation
n environment” in section 5.1 for details

Forbidden

Do not install the inverter in locations with considerable amount of fine
wder and organic materials like silicon
particles that include iron pow
It may cause insulation failure, contact failure in circuit breakers and switches,
performance degradation and/o
or failure.

Forbidden

Do not install the inverter in altitudes over 2000m
Voltage withstand is reduced, which yields to performance degradation and/or
failure.
Forbidden

This inverter must not be used
d in residential areas
This inverter may cause interference if used in residential areas. Such use must
kes proper measures to prevent interference with
be avoided unless the user tak
the reception of radio and televiision broadcast.

Forbidden

This inverter is only for use in a closed electrical operating area
This inverter does not measurre the residual current. Refer to section 5.3 for
further details.
Forbidden
Only Type B residual current detection
d
(RCD) or monitoring (RCM) devices arre allowed
This inverter can cause a dc currrent in the external protective earthing conductor.
Were a residual current detectio
on (RCD) or monitoring (RCM) device is used for
protection in a case of direct orr indirect contact, only an RCD or RCM of Type B
is allowed on the supply side off the inverter.

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2.2. Transportation

CAUTION
Do not apply a mechanical sho
ock over 1.5G to the inverter
A shock over 1.5G may cause performance
p
degradation or failure.
Forbidden
Do not expose the package fra
ame to salt water or rain
Salt water and rain may enter th
he enclosure and provoke performance
degradation or failure.
Mandatory
Do not transport, move or plac
ce the inverter in horizontal position
Heavy internal parts such as tra
ansformers and reactors will be subjected to forces
s
that may damage the inverter
Forbidden

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2.3. Storage environment

CAUTION
Do not store the inverter in pllaces with high temperature, low temperature,
high humidity, or severe temp
perature/humidity variations
Changes in performance of inte
ernal parts or condensation may cause
performance degradation and/o
or failure.

Forbidden

Storage environment：
～50℃
Ambient temperature -20～
Relative humidity less than
n 95% (No condensation)

The inverter must be stored in
ndoors
If the inverter is stored outdoo
or, rain, wind and/or condensation (produced by
temperature variation) may cau
use performance degradation and/or failure.
Mandatory
Do not store the inverter in locations with considerable amount of fine
particles that include iron pow
wder and organic materials like silicon
It may cause insulation failure, contact
c

failure in circuit breakers and switches,
performance degradation and/o
or failure.

Forbidden

Do not store the inverter in places where vibrations(※1) or mechanical
shocks(※2) may occur
ace where vibrations or mechanical shocks occurr,
If the inverter is stored in a pla
changes in performance of in
nternal parts may produce system performance
e
degradation and/or failure.
※1・※2：Refer to “Inverter ins
stallation environment” in section 5.1 for details

Forbidden

Do not store the inverter in pla
aces exposed to air containing salts, corrosive
gases (※3) and/or vapor or oil steam
If stored in a place where one of
o the above elements is present, contact failure in
n
circuit breakers and switches may occur, and may cause performance degradation
n
and/ or failure.
※3：Refer to “Inverter installation environment” in section 5.1 for details

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Forbidden


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2.4. Unpacking of the inverter

CAUTION
When opening the package using
u
a hammer or another tool, do not inflictt
direct mechanical shock or viibration to the inverter
Mechanical shocks and vibratio
ons may cause inverter failure
Forbidden

2.5. Transportation after unpacking

CAUTION
Do not transport, move or plac
ce the inverter in horizontal position
Heavy internal parts such as tra
ansformers and reactors will be subjected to forces
that may damage the inverter
Forbidden

WARNING
When transporting the inverte
er with a crane, follow proper safety procedurres. Keep the wire
rope at an angle less than 60°°.
Les
ss than
If procedures are not observed
d, there is a risk of injury and
60゜
damage of the inverter
Mandatory

This mark indicates the lifting
g point of the inverter. Lift the inverter through
h
the lifting holes located next to
t the lifting marks.
There is a risk of injury and dam
mage of the inverter if not lifted properly

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2.6. Installation and wiring of the inve
erter

DANGER
During installation, do not inclline the inverter more than 10°
If the inverter is inclined more th
han 10°, it may fall causing injuries.
Forbidden
The inverter must be connecte
ed to ground
If not grounded, insulation degra
adation may cause current leakage, thus
posing a risk of electric shock.
s than 5Ω.
Ensure a ground resistance less

■

Use IEC 61730 Class A rated photovoltaic modules only
Class A modules are mandatory
y for transformerless inverters

Must be connected
M
to ground

!
Mandatory

After installation and wiring, in
nstall all protective covers
There is a risk of electric shock and injury if protective covers are not installed.
Mandatory

Fire hazard !
Suitable for mounting on concre
ete or other non-combustible surface only !

Mandatory

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CAUTION
During installation and wiring
g, protect the fan against dust by covering the
e
fan and ceiling with a vinyl sh
heet or other protective element
Dust entering into the cabinet can provoke failure in insulation and contact failure
e
s, causing performance degradation and/or system
m
in switches and circuit breakers
failure.

Mandatory

Do not sit on, climb on or step
p on the ceiling and the fan cover
The fan can be damaged.
Forbidden

Do not perform installation and wiring in locations with considerable
i
iron powder and organic materials like
amount of fine particles that include
silicon
c
failure in circuit breakers and switches,
It may cause insulation failure, contact
performance degradation and/o
or failure.

Forbidden

Do not perform installation an
nd wiring in places exposed to air containing
salts, corrosive gases (※) and/or vapor or oil steam
If stored in a place where one of
o the above elements is present, contact failure in
circuit breakers and switche
es may occur, and may cause performance
degradation and/ or failure.
※：Refer to “Inverter installatio
on environment” in section 5.1 for details

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Forbidden


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CAUTION
Cooling fans of the inverter arre designed the purpose of cooling for internal
components of the inverter. Prepare
P
any appropriate equipment for exhaustt
internal heat of that when you
u install the inverter to outdoor type enclosure
e
or other building. (Ventilation fans, air conditioner, heat exchanger etc.)
If heat exhaust in the air of enclosure properly, components of the inverterr
y stop or operate with power limitation
suppose fail or the inverter may

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Mandatory

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3. Index
1. About this manual .............................................................................................................................................1
1.1. Explanation of markings and symb
bols .........................................................................................................1
1.2. Limitation of use, disclaimer and disposal
d
...................................................................................................3
2. Safety Precautions ..............................................................................................................................................4
2.1. .......................................................................................................................................................................4
2.2. Transportation ...............................................................................................................................................6
2.3. Storage environment ....................................................................................................................................7
2.4. Unpacking of the inverter ..............................................................................................................................8
2.5. Transportation after unpacking .....................................................................................................................8
2.6. Installation and wiring of the invertter ...........................................................................................................9
3. Index ..................................................................................................................................................................12
4. Tools, Machinery and Materials Required for Installation and Wiring Work ....................................................14
5. Installation Environment ....................................................................................................................................15
5.1. Inverter installation environment .................................................................................................................16
5.2. Installation clearance ..................................................................................................................................17
5.3. Electrical Requirements ..............................................................................................................................18
6. Structure and Outline of the Inverter .................................................................................................................20
7. Inverter Transportation ......................................................................................................................................21
8. Storage ..............................................................................................................................................................22
9. Unpacking..........................................................................................................................................................23
9.1. Package outline ..........................................................................................................................................23
9.2. Main contents of the package .....................................................................................................................23
9.3. Unpacking place .........................................................................................................................................23
9.4. Guidelines for unpacking ............................................................................................................................24

9.5. Guidelines after unpacking .........................................................................................................................25
9.6. Transportation after unpacking ...................................................................................................................26
10. Inverter Installation ..........................................................................................................................................28
10.1. Cabinet base setup and toleranc
ce ...........................................................................................................28
11. Fixation of the Inverter .....................................................................................................................................29
12. Wiring and Connection ....................................................................................................................................30
12.1. Checkmark and tightening torque
e for screws ..........................................................................................30
12.2. Connection of external cables ..................................................................................................................31
12.3. Connection of the grounding elec
ctrode conductor ...................................................................................34
12.4. Connection of Input/output relay signals .................................................................................................35
13. Cleaning of the inverter inside and su
urroundings ...........................................................................................36
14. Inspection for installation and wiring work
w
completion ...................................................................................36

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15. Inverter Specifications .....................................................................................................................................37
16. Contact ............................................................................................................................................................39

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4. Tools, Machinery and Materials Required for Installation and Wiring Workk
(1) Machinery and materials fo
or handling cargo
Overhead Crane, Truck
k-Mounted Crane, Forklift, and related required machinery
m
should be
prepared
(2) Machinery and materials fo
or opening the packing
①

Nail Extractor Tool（F
Fig. 4.1、4.2）

Fig. 4.2 Crowb
bar

Fig. 4.1 Nail Puller

②

Hammer

③

Cutter

④

Spanner

⑤

Torque Wrench, etc.

(3) Tools for Installation and Wiring
W
①

Screwdriver（

②

Spanner（for M8、M1
10、M12）

③

Socket Wrench（for M8、M10、M12）
M

④

Pinch Bar（Fig. 4.3）

⑤

Permanent Maker (Re
ed)

⑥

Other tools for wiring

）
300mm
m Approx.

Fig. 4.3
3 Pinch Bar

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5. Installation Environment

Do not insttall the inverter in a place with flammable gases
s or explosive gases

DANGER

There is a risk of explosion and fire due to sparks created in
n the circuit breakers and
switches
Do not insttall the inverter outdoors
Rain and dust will reach high voltage parts, provoking fire or electric shock.

■ Do not install
i
the inverter in a hot place, cold place
e, in a place with high
humidity
y or in a place with severe temperature change
Changes
s in components performance and condensation may
m provoke performance
degradattion or failure
If it is no
ot possible to comply with the recommended insttallation environment, air
condition
ning equipment is required.
Insta
allation Environment：
Ambient temperature

-20～50℃

Relative humidity

15～95% (No condensation)

Do not in
nstall the inverter in places where it can be subjjected to vibrations (※
1) or sho
ocks (※2)
Vibration
ns or shocks may produce performance degradation and failure.
※1・※2
2：refer to “Inverter installation environment” in sec
ction 5.1 for details

CAUTION

Do not in
nstall the inverter in places exposed to air conttaining salts, corrosive
gases (※
※) and/or vapor or oil steam
If installe
ed in a place where one of the above elements is present,
p
contact failure in
circuit brreakers and switches may occur, and may cause performance
p
degradation
and/ or fa
ailure.

※：referr to “Inverter installation environment” in section 5.1
1 for details
Do not install the inverter in locations with conside
erable amount of fine
particles
s that include iron powder and organic materialls like silicon
It may cause
c
insulation failure, contact failure in circuit breakers and switches,
performa
ance degradation and/or failure.
Do not in
nstall the inverter in altitudes over 2000m
Voltage withstand is reduced, which yields to performa
ance degradation and/or
failure.

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5.1. Inverter installation environment
Inverter and related equipment should be installed according to the installation environment
e
standard
detailed in Table 5.1
Not adhering to this standard

d may yield to degradation of insulation and other effects provoking
reduction in lifetime and/or failu
ure.
It is recommended to measure and evaluate environmental variables in the installation location prior to
inverter installation. In case th
here is some parameter that does not comply witth the specifications,
corrective measures should be
e taken prior to inverter installation.
When cleaning the
e inverter room, use an electrical vacuum cleaner to
t prevent rubbish and
dust to get into the
e air

Inquiry

Do not use silicon type
t
wax on the floor or other places of the inverterr room.
Ta
able 5.1

Installation environment

No.

Item

1

Ambient Temperature

Minimu
um and maximum temperature: -20℃ to 50℃
Average for 24 hours shall be between 5℃ and 35℃

2

Relative Humidity

e Humidity 15 to 95%
Relative
Variatio
on of temperature should not cause condensation.

3

Altitude

Maximu
um altitude is 2000m above sea level

4

Atmospheric Pressure

860 to 1060hPa
1

5

Vibration and
mechanical shocks

Vibrations in the installation location should have a freque
ency less than 10Hz
or over 20Hz.
quencies below 10Hz, the acceleration should be le
ess than 0.5G.
For freq
For freq
quencies over 20Hz and below 50Hz, the accelera
ation should be less
than 0.5
5G.
For freq
quencies over 50Hz and below 100Hz, the tota
al amplitude of the
vibration
n should be less than 0.1mm.

6

Fine particles in
electrical room

ed should be kept in
The air conditions in the room where the inverter is installe
the norm
mal air dust level, especially free of iron powder, oils,

o
fat, and organic
materials such as silicon.

Corrosion Factor
7

*）According to
IEC-654-4
（1987）Class 1

Installation Standard

Hydrogen Sulfide (H2S)
Sulfurous Acid Gas (SO2)
Chlorine Gas (Cl2)
(Relative Humidity > 50%）
Chlorine Gas (Cl2)
(Relative Humidity < 50%）
Hydrogen Fluoride (HF)
Ammon
nia Gas （NH3）
Nitroge
en Oxide (NOX)
Ozone (O3)

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Average[PPM]
＜0.003
＜0.01

Maximum[PPM]
＜0.01
＜0.03

＜0.0005

＜0.001

＜0.002

＜0.01

＜0.001
＜1
＜0.05
＜0.002

＜0.005
＜5
＜0.1
＜0.005


４ＧＢＧ０９１４
5.2. Installation clearance

Pro
ovide enough space for operation and maintenance in the inverter’s
installation place

DANGER

If the required space is not provided, maintenance
e cannot be performed.
urthermore, since a reduced space reduces the airr flow, over temperature
Fu
ma
ay cause failure.

Provide the following clearan
nce for maintenance.
When deciding the installatio
on, ensure that required maintenance space is prov
vided.
The required maintenance sp
pace may change due to applicable standards or lo
ocal regulations.

Top: 500mm*1

Front:
1000mm*2

Side: 0mm (0”)

Back: 0mm (0”)

(a) 3input type without fan cover
Fig. 5.1
5
Inverter Installation Clearance

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Refer to IEC/ISO and local
regulations
for
required
clearance in front of the
inverter. Cle
earance will change
if there is electrical
e
equipment
in front of th
he inverter.


４ＧＢＧ０９１４
5.3. Electrical Requirements
(1)

Grid Connection Step-up Trans

sformer

Minimum requirements for a two-winding grid connection transformer are as follows:
-

Galvanic isolation between windings is required.

-

Only delta and ungrounded wye connections are allowed for the secondary (inverte
er side).

-

The secondary winding (inverter side) should not be grounded at any point. Impedance grounding is
also not allowed.

-

Shield between high voltage wind
ding and low voltage winding is required. Shield should be connected to
the protective earth (PE) of the trransformer.

-

Impedance between primary and
d secondary should be more than 3% and less than
n 7%.

-

When the dc circuit is grounde
ed intentionally or accidentally, the phase to ground voltage of the
secondary may have a peak up to
t 110% the maximum dc input voltage (1500V).

-

The transformer should be rated at 2550kVA (PVH-L2550E) / 2222kVA (PVH-L222
20E) or over.

-

Other requirements may apply. Ask
A your TMEIC representative for further transform
mer requirements.

Transformer
Grid

Invertter
Secondary Primary

Fig. 5.2 Grid-connection step-up transformer

(3)

Insulation Monitoring

This inverter does not measure insulation resistance or insulation impedance. Insulatio

on monitoring should
be installed by the user when requirred by local regulations. Installation instructions ma
ay vary depending on
type, connections and dimensions. Some devices may not be possible to install ins
side the inverter and
some may not be compatible. Pleas
se contact our representative for further details.

(4)

PV Array Grounding and Groun
nd Fault Detection

The PV array can be negative grounded, positive grounded or floating.
For negative or positive grounded, an
a optional circuit will measure the ground currentt and trip the inverter
when that current surpass the prote
ection setting. Also, positive-to-ground voltage and
d negative-to-ground
voltage are measured.
For floating systems ground fault is detected when the difference between the positiv
ve-to-ground voltage
and negative-to-ground voltage is la
arger than the protection setting.

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(5)

Residual Current Detection (RC
CD) or Monitoring (RCM) Device

The inverter is not equipped with a re
esidual current detection (RCD) or monitoring (RCM
M) device. An RCD or
RCM device should be installed whe
en required by local regulations. The inverter can cause
c
a dc current in
the external protective earthing con
nductor, therefore only an RCD or RCM of Type B is allowed on the
supply side of this inverter.
Installation instructions may vary de
epending on connections and dimensions. Some devices may not be
possible to install inside the inverter and some may not be compatible. Please contact our representative
for further details.

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