Daikin EHU Series User manual

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430
Hybrid Hydraulic System
“ECO RICH”
EHU SERIES
Instruction Manual
DAIKIN INDUSTRIES, LTD.
Oil Hydraulics Division
《Photo： EHU25-M07-AE-30》
・This instruction manual is based on these following types Eco Rich.
As for MGF.NO. before them, there is some difference in operating manual of
the panel and adjusting method.
□ EHU14-L04 -A -30 ：MFG.NO. 3C-＊＊-＊＊＊＊＊
□ EHU25-L04 -A -30 ：MFG.NO. 3C-＊＊-＊＊＊＊＊
□ EHU25-L07 -AE -30 ：MFG.NO. 3D-＊＊-＊＊＊＊＊
□ EHU25-M07-AE -30 ：MFG.NO. 3D-＊＊-＊＊＊＊＊
□ EHU30-M07-AE -30 ：MFG.NO. 3D-＊＊-＊＊＊＊＊
１

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430
《SAFETY PRECAUTIONS》
■Before Usage
・To ensure to notify these contents of this document for user.
・Add this contents to your machine’s handling manual which uses this product.
・Before installation, operation or maintenance, read thoroughly this handling manual and other attached documents
and learn equipments knowledge, safety information and attentions, then use this product properly.
・To ensure keeping this manual, attached documents and supply specifications and so on, whenever user enable read
these documents.
・So all figure or photo in this manual are sometimes drawn the state of removing the cover or safety insulate object to
explain details, which you operate surely put the cover or insulate object as it was before and operate following this
manual.
・This manual may be changed for improvement of the product or alteration of specifications or improve this manual
more easily.
・This document is about safety handling of our hydraulic unit. Prepare date for safety handling according to the
standard for safety operation or maintenance of your machine.
■Symbols of safety precautions in this manual
・In this manual, safety precautions are represented and classify 3 rank, “ Danger”, “ Warning” and
“ Caution”.
Danger: If you ignore this symbol and handle improperly, it may pose a high risk of causing death or serious injury.
Warning: If you ignore this symbol and handle improperly, it may pose the risk of causing death or serious injury.
Caution: If you ignore this symbol and handle improperly, it may pose the potential risk of causing injury or damage
to the product or property.
Although the matter is mentioned in “ Caution” symbol, there will cause serious result.
Be sure to observe these precautions.
■Safety
◆ General
２
Danger
・Qualified people perform the task such as transportation, installation, piping, wiring, operation, handling,
maintenance, and inspection.
・When working, make use of protective tools (uniform, safety belt, helmet, safety shoes, gloves, etc).
・Do not use another specifications which is mentioned in the catalog, or delivery specifications.
Caution
・Be sure to enforce daily inspection (it is mentioned in this document, or in attached document.)
・Do not stand, beat or add pressure on the products, or you may be injured and the product is damaged.

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430
《Exemption Clause》
・Damages owing to earthquake, fire, and action of the third party, other accidents, intentional or negligence,
misuse of customers, use under unusual conditions we would exempt from any responsibilities.
・Incidental damages (loss of business profit, business suspension) owing to usage of this product, or impossibility
of usage, we would exempt from any responsibilities.
・Accidents and damages caused by disobeying manuals or supply specifications, we would exempt from
any responsibilities.
・Damages caused by wrong working owing to combination of connecting equipment, we would exempt from
any responsibilities.
《Limitation of uses》
・Make sure to consider the situation, in case of life threatening owing to breakdown or wrong working of this
machine, or possibilities of danger to the human body.
・Though, this product manufactured under strict quality control, in case of using important equipment, to prevent
serious accident or damage from failure of this machine, install safety equipment.
３
《Additional function along with the software change》
・Since these parts may be changed in the quality, performance improvement or other circumstances, the contents
of this manual are sometimes partly different from the product. Please understand it.
・It is able to confirmed about the function of Eco Rich in use by the unit name plate.
Refer to the table that is attached to the end of this document for corresponding function.

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430
－Table of contents－
【1.Preface】 －－－－－ 5
【2.Nomenclature】 －－－－－ 5
【3.Specifications and operating conditions】 －－－－－ 6
【4.Name of parts】 －－－－－ 7
【5.Hydraulic circuit】 －－－－－ 8～9
■ Hydraulic circuit
■ Parts
■ Piping
【6.Points for transporting, moving and installing】 －－－－－ 10～11
■ Operating
■ Transporting
■ Installation
【7.Preparation for operation】 －－－－－ 12～15
■ Filling hydraulic oil
■ Electric wiring
【8.Test run】 －－－－－ 16
【9.Operating manual of the control panel】 －－－－－ 18～23
■ General description
■ Explanation of each mode
■Shift to each mode
■ Operation manual of each mode
【10.Maintenance】 －－－－－ 24～28
【Attached document A】Change points of the PC setup pressure －－－－－ Att. 1～Att. 10
1) The PC pressure change point of the standard valve block (Fixed setup pressure relief valve)
2) The PC pressure change point of the variable relief valve. (Model : EHU**-***-**-30-v)
【Attached document B】Power supply turning on,a time chart related to alarm －－－ Att. 11～Att.13
【MFG No. function table】 －－－End of the document
４

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430
【1.Preface】
Thank you for choosing the “Eco Rich” series of DAIKIN hybrid hydraulic system.
DAIKIN hybrid hydraulic system, “Eco Rich” realized overwhelming energy-saving and low noise by adopting
hydraulic technology and motor-inverter technology, and they are gentle hydraulic system for men and
environment.
When using “Eco Rich: EHU series”, manage proper handling and maintenance after reading this manual
thoroughly to cross for a long time and to keep good performance.
Approve it in case the contents of this manual are sometimes partly different from the product because of the
change of the parts according to the improvement of quality, performance and other circumstances.
【2.Nomenclature】
５
（ａ） （ｂ） （ｃ）（ｄ） （ｅ）（ｆ） （ｇ） （ｈ） （ｉ）
MFG.NO.
※※ －※ ※※ －※ ※ －３０ －※－※※※※
（ｊ）（ｋ）
３ ※ －※※－※※※※※
（ｌ）
ＥＨＵ
（a）Series name
･EHU: EHU Series
（b）Max.discharge flow rate of the pump
･14: 14 L/min.
･25: 25 L/min.
･30: 28.5 L/min.
（c）Output characteristics
（right figure reference）
･L
･M
（d）Max. working pressure
･04: 4.0MPa
（the part of Model 5.0MPa）
･07: 7.0MPa
（e）Control method
･A: pressure compensate
（f）Controller specification
・E : with reactor
・Nothing : without reactor
（g）Design NO.
･Progress according to the product
has been changed.
（h）Option NO.
・Nothing: With fixed relief valve
・V : With Variable relief valve
（i）Non-standard NO.
（j）Design NO.
･3: 30 design
（k）Progress NO. of design change
･0～9、A～Z such as progress
（l）Administration of manufacture NO.
･Administration NO. of our factory
《Output characteristics 》
Pressure
０
F
l
o
w
〔Characteristics ：Ｌ〕
Pressure
０
Flow
〔Characteristics ：Ｍ〕

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430 ６
【3.Product specifications】
■Specifications
EHU14－L04 EHU25－L04 EHU25－L07 EHU25－M07 EHU30－M07
－A－30 －A－30 －AE －30 －AE －30 －AE －30
(L)
0.75 kW nearly 1.5 kW nearly 2.2 kW nearly 2.8 kW nearly 2.8 kW nearly
(MPa) ６.０
(L/min) ４～１４ ５ ～２５ ５～２８．５
(N) ４５０ ４６０ ４６０
Capacity for fan motor of the oil cooler
Motor capacity for the pump
DC １２／２４ V 、 AC １００ V（５０／６０ Hz）、Max.１Ａ
Black
５～２５
2φ200/200/220 V、50/60/60 Hz（Supply from controller）
７.０
Control stop signal
Standard painting
Power
source
Relay for alarmoutput
Motor of the pump
Fun motor of the oil cooler
Weight (without hydraulic oil)
Tank capacity
Max. working pres sure
Discharge flow adjusting range
１０
16/15W (50/60Hz)
3φ200/200/220 V、50/60/60 Hz
No-function DC 24V (Rate 5mA)
４.０
４３０
：PC setup pressure is set up in the Max. working pressure at sipping. (standard products).
When it is used continually Max. working pressure, use it less than of flow 5.0 L/min.
When there is the possibility to change PC pressure, use the equipment which has option NO. ”V”.
The change of the PC pressure becomes easy ( the setup pressure is 1.5 MPa at sipping).
：It is preset to be Max. flow at sipping.
（Max. flow is theoretical value, and it is not by the guarantee value.）
：Refer to the table of 20-page b) Setup mode ,and that’s column of the initial setup value, for a setup of
alarm at sipping.
◎As for other specifications, confirm a delivery specifications. (form drawings)
（Note 1）
（Note 2）
（Note 3）
(Note 1)
(Note 2)
(Note 3)
■Working condition
Hydraulic oil Petroleum series of specific hydraulic oil / anti-wear hydraulic oil
（Refer to our [General Sample of Hydraulic Machinery (HK196A )] to see the recommended
brands.)
・Viscosity grade ：ISO VG 32~ 68
・Viscosity rangade ：15 ~ 400 mm /s
・Contamination level ：within NASclas s１０
０ ～ ６０ ℃ （recommended workin
g
tem
p
erature ran
g
e：15~50 ℃）
（note ２）
０～３５ ℃
Below 85%RH
Indoor （must be fixed by screws）
・be sure to install no-fuse-breaker and circuit breaker.
・The electric wire connecting is wired to satisfy an European standard EN60204-1.
･Do not turn ON/OFF the power frequently, it may cause remarkable short life of the
c ontroller. Use the stop control function, in case of using this condition in the fre qu
e
・As for EHU**-L04 does not equipped with the control stop function in standard.
Please consult us if necessary.
・Ground (earth) terminal must be down to ground.
Oil temperature
Environment temperature
Humidity
Installation place
Others
2
Note 1) Do not use any hydraulic fluid other than mineral type (hydrous or synthetic) hydraulic oil (like water-
glycol).
Note 2) In case of using except recommended working temperature range, it may cause large pulsatory motion
of pressure or reduce discharge volume , but it is not abnormal.

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430 ７
【4. Parts name】
(The arrangement of the standard port is shown. Refer to the form drawing and the delivery specifications for
the non-standard products.)
Controller
Unit name plate
Notice name
plate
Oil inlet port with air
breather
Tank
Sample port with drain cap
Oil gauge
Valve block
Front view of the unit
SR motor and pump
Drain port (DR 1)
Rp 1
Top view of the unit
Drain port (DR 2)
Rp 1/2 Return port (T1)
Rc 1/2
Return port (T2)
Rc 1/2
Discharge port (p)
Rc 3/8
Oil cooler
Eye bolt

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430 ８
■Parts
【5. Hydraulic circuit】
■Hydraulic circuit
Part NO. Name
1 Tank
2 Suction filter
3 Oil gauge
4 Inverter driving pump
5 Oil inlet port with air breather
6 Oil cooler
7 Controller

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430
【6.Points for transporting, moving and installing】
・Though the vibration absorbed rubber is attached to the leg of the motor pump because of the low vibration and
low noise. It is fixed with a hexagon socket bolt (2 of M6 x L35) as to protect the vibration absorbed rubber
from transport vibration countermeasure at shipping.
■Operation
・Before operation, remove the hexagon socket bolt (2 of M6 x L35).
If it is operated without removing these bolts, it may cause loud vibration and noise.
■Transporting
・When it is being transported, install the spacer which
protect the vibration absorbed rubber with hexagon socket
bolt (2 of M6 x L35), and fix the motor pump and the tank
upper board securely. (Refer to the below figure.)
Be sure to suspend it with eyebolt.
In this time, move the unit carefully about balance so as
not to be damaged the piping by the hook.
Eyebolt
Detail of spacer
( 2 places )
Type
Weight
EHU14-L04 EHU25-L04 EHU25-L07 EHU25-M07 EHU30-M07
43kg 45kg 46kg
Weight table (hydraulic oil in not included)
９
Danger
・If the vibration absorbing rubber is suspended without spacer for its protection, it is dangerous that the
vibration absorbing rubber may break off and fall.
・In case that it is suspended except for the eyebolt (pump piping), it is dangerous to fall and turnover.
・Confirm the weight of the hydraulic unit, and suspend it within the rated load of the hanger-hook.
Warning
・Never approach during carry by hanger-hook. There is danger of injury due to fall and turnover.
Caution
・Do not move the tank with filling oil. (The oil leaking and air-mixing will cause inferior operation.)
・During transportation, be sure to fix it so that it may not be moved by vibration and another force.
Spacer
vibration
absorbed rubber
Hexagon socket bolt
(M6 x L35)

【INSTRUCTION MANUAL】
DAIKIN INDUSTRIES, LTD.
SE-04430
◆ Installation on horizontal place
・Install the hydraulic unit on the horizontal table or the
horizontal floor.
Fix the hydraulic unit with bolts (4 of M8) not to move.
Exhaust
Inhalation
Inhalation
More than
10cm
１０
Warning
■Points for installation
◆Securing of space of inhalation/exhaust
Do not put the obstacle that disturbs inhalation/exhaust
of the oil cooler within 10cm from the end of the unit.
Moreover, install it in the good ventilation so that the
unit may not be filled with heat, and be careful that
temperature of inhalation becomes fixed
surrounding temperature (less than 35℃).
・When it is used in where there is no space of inhalation/exhaust, and heat place, the heat exchange function
of the oil cooler/fan motor declines, and finally, oil temperature and temperature of the hydraulic equipment
becomes unusual high temperature.
・In case of touching high temperature part, you may be burnt.
Caution
・When it is used in where there is no space of inhalation/exhaust, and heat place, the motor becomes high
temperature, and the life of the motor will be shortened apparently.
・When the motor becomes high temperature, temperature protection suspends its operation.
(In case “P02: temperature alarm output setting”is “1”(as output), alarm signal are outputted.)
・If using under high temperature condition continuously, it causes troubles and shorten the life of the
hydraulic equipment such as the motor pump.
・If using under high temperature condition continuously, it makes the quality of the hydraulic oil lower, and
shorten it’s life.
Unit mounting hole φ9 (4 positions)
( Please prepare for fixing bolt separately by customer side.)
Warning
・If the hydraulic unit is not fixed with bolt, it is dangerous because of falling down and moving around by
the hydraulic reactive force in the pipes, so the unit must be fixed.
Caution
・In case it is installed in the slope, there will be oil-leaking and air-mixing cause unusual noise and shorten
equipment’s life.