Daikin AKZ8 Series User manual

Built-in breaker
model
Built-in tank
model
Different-voltage
model
CE model
Built-in heater
model
Installation
Models
Oil Cooling Unit and Accessories 4
Precautions for Installation 5
Reference for Pipe Selection 6
Electric Wiring 7
CONTENTS
1
Circulating type
Standard
model
Menu
Series
Built-in
breaker
model (–B)
CE model
(–C)
Built-in
heater
model (–H)
Built-in
tank model
(–T1, –T)
Different-
voltage
model (–E)
AKZ148
AKZ328
AKZ438
AKZ568
AKZ908
Instruction Manual
AKZ8 Series
If the air filter is clogged, the cooling performance deteriorates,
causing excess power consumption.
Clean the air filter periodically to reduce power consumption.
Thank you for purchasing DAIKIN Oil Cooling Unit (“OILCON”).
This instruction manual includes instructions for using the Oil
Cooling Unit.
To ensure proper use of this product, be sure to read through this
instruction manual before using it.
After reading this manual, keep it handy for your future reference.
Monitor Items 23
Timer Operation 24
Additional Setting Functions 25
Setting Additional Function 27
For Temperature Control Improvement 30
Alarm/Warning Output Logic 33
Alarm Settings for Optional Protection
Devices (Installed by User) 33
Handling
Before Operation
12Model Identification and Specifications
14
Part Names and Functions 15
Names and Functions of the Control Panel Parts 16
Checking Initial Operating Conditions 18
Operation Setting 19
Holding Constant Oil Temperature 20
Tuning Oil Temperature to Room Temperature
(or Machine Temperature)
21
Cooling Oil at Constant Capacity (%) 22
Optional Parts
Machine temperature tuning control 34
Returned oil temperature control 35
Communication with main machine 36
Maintenance
37
38
Maintenance/Inspection
• Daily maintenance/inspection
• Periodic maintenance/inspection
• To leave the unit unused for a long period
Troubleshooting
• When the unit operation seems abnormal
although no alarm is activated
• When an alarm is activated
Safety Precautions
Installation Procedure
Before Operation
Useful Functions
Maintenance
Troubleshooting
Optional Functions
Operating Procedure
DAIKIN Oil Cooling Unit
(“OILCON”)
Proper use results in power saving
PIM00116C
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PIM00116C_EN.fm 0 ページ ２００８年９月２９日 月曜日 午前１１時５１分

1
Mandatory Mandatory
Forbidden Ground cable
connection
Mandatory
Forbidden
Forbidden
7
n The instructions described below are intended to prevent injury or damage to you and other people.
Possible conditions that may result from improper handling are classified as follows:
n All these instructions include important information on safety. Be sure to observe the instructions.
n After reading this manual, be sure to keep it in place so that users can read it whenever required.
n If this product is transferred to another person, be sure to attach this manual to the product.
n To use this product safely, be sure to observe the following instructions, and safety laws and regulations for the
relevant standards listed below.
Safety Precautions
Before using this product, read the following instructions carefully to ensure proper use.
This category indicates urgently
hazardous conditions that may
result in death or serious injury.
DANGER
This category indicates potentially
hazardous conditions that may
result in death or serious injury.
WARNING
This category indicates potentially
hazardous conditions that may result
in injury or property damage only.
CAUTION
Transportation, installation, piping, electric wiring,
operation, maintenance and inspection of the
unit must be conducted by qualified people.
Check the power supply (voltage, frequency and
current).
DANGER
1. Industrial Safety and Health Law 2. Fire Service Law 3. JIS B8361 General Rules for Hydraulic Systems
Precautions for installation
Only qualified people can handle the unit.
Connect the power cable according to the procedure
described in “Electric Wiring” on page
.
Connect the power cable according to the
procedure described in this instruction manual.
Check the weight of the unit with the nameplate
to make sure that it does not exceed the rated
load capacity of the carrier. Hang the unit by the
points specified in the outline drawing. Failure to
observe this instruction may result in fall or
overturn of the unit, causing injury or property
damage.
Check the weight, and hang the unit by the
specified points.
If the unit is not grounded, you may get an
electric shock.
Ground the unit securely.
Conduct electric wiring according to “Regulation
on Electrical Facilities” and “Internal Wiring
Regulations”. Improper wiring may result in
burnout or fire.
For overseas use, conduct electric wiring
according to the local wiring standard.
WARNING
Conduct electric wiring according to the
ratings.
Never get close to the unit when it is being
carried with slings. Failure to observe this
instruction may result in fall or overturn of the
unit, causing injury or property damage.
Keep away from the unit when it is being
carried with slings.
Check the fastening points with the outline
drawing, and fasten the unit securely with bolts
or foundation bolts. Failure to observe this
instruction may result in fall or overturn of the
unit, if this unit is installed at an elevated position.
Fasten the unit during operation.
PIM00116C_EN.fm 1 ページ ２００８年９月２９日 月曜日 午前１１時５１分

2
Mandatory
Forbidden
Forbidden
Forbidden
Mandatory Mandatory
Mandatory
Mandatory Mandatory
Do not
disassemble
Mandatory
Forbidden
Forbidden
Before handling this unit, be sure to turn OFF the
power supply.
Handling this unit in live conditions may result in
electric shock.
DANGER
Precautions for use
Before handling this unit, turn OFF the power supply.
Do not operate the Oil Cooling Unit with the unit
casing or terminal covers of the motor or other
electric parts removed. Failure to observe this
instruction may result in electric shock.
Do not operate the unit with the covers opened.
Do not use this unit in any condition other than
those specified in the catalog or delivery
specifications. Failure to observe this instruction
may result in a serious accident, such as damage
to the main machine, injury, fire and electric shock.
Do not use the unit beyond specified operating conditions.
Do not modify this unit.
Any person other than DAIKIN authorized service personnel must
not disassemble or repair this unit. Failure to observe this
instruction causes fire, electric shock or injury.
If this unit is disassembled, repaired or modified by an
unauthorized person, it shall not be beyond the scope of warranty.
Do not disassemble or repair the unit.
During operation, the external panel may
become extremely hot. Be careful that your hand
or body does not directly touch it. Otherwise, you
may get a burn.
Keep your hand or body away from the unit during operation.
Do not immerse this unit in water, or splash
water on the unit. Failure to observe this
instruction may result in short-circuit or electric
shock.
Do not splash water.
During this period, electric discharge from the
internal high-voltage parts (capacitors) has not
been completed. Failure to observe this instruction
may result in electric shock.
Dot not handle the unit for 5 minutes after power supply is turned OFF.
Do not install this unit in a place where evolution,
inflow, retention or leak of inflammable gas may be
expected, or where airborne carbon fiber is present.
Failure to observe this instruction causes fire.
Do not use the unit in explosive atmosphere.
The Oil Cooling Unit is not equipped with a
circuit breaker. A circuit breaker exclusively for
the Oil Cooling Unit should be provided by user.
To ensure safety, it is recommended to use an
earth leakage breaker. To use an earth leakage
breaker, select an inverter-compatible type.
(Recommended: 15 mA or 20 mA)
CAUTION
Prepare a circuit breaker at user’s site.
If the oil pump operation system has a fault, oil
cannot be supplied to the main machine. Normally
in this case, the Oil Cooling Unit detects the fault
and outputs an alarm signal. However, it may not
be detected depending on the fault mode. If the
main machine must be protected even in such a
case, provide a flow switch for the oil flow path of
the main machine to watch the oil flow.
Provide a flow switch for the main machine.
Before or immediately after connection of the Oil Cooling Unit, make sure that the oil piping of the main machine is not
blocked (fully closed). If the unit is operated with the oil piping blocked (fully closed), the oil hose may break due to an
oil temperature rise, causing oil to flow out of the Oil Cooling Unit. When the oil temperature abnormally rises, the FE or
FH alarm is activated. In this case, stop operation of the main machine as soon as possible.
Check the oil piping.
The optional CE model (AKZ∗∗8–C) Oil Cooling Unit
is classified as an auxiliary machine of the main
machine (Overvoltage Category II). It has been
self-declared under the following conditions. Be sure
to follow the specifications of the main machine.
(1) Provide a main power supply circuit breaker for
the main machine according to the EN60204-1
requirement.
(2) Connect the power supply via a transformer
with basic insulation rating
∗
.
∗Basic insulation: Insulation provided for live parts
to ensure fundamental protection against electric
shock (under IEC Standard 60335-1)
Precaution for using the CE model (optional)
During transportation (including storage), do not
tilt the Oil Cooling Unit more than 30˚.
If the unit is tilted more than 30˚, the compressor
may have a fault.
Do not tilt the unit.
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3
Mandatory
Mandatory
Mandatory
Mandatory
Mandatory
Forbidden
Forbidden
Caution
Forbidden
Mandatory
Mandatory
Mandatory
Forbidden
Mandatory
Mandatory
Check
CAUTION
If a large quantity of refrigerant is filled in the site,
people in the site may be anesthetized or
suffocated. With the CE model, MSDS (Material
Safety Data Sheet) for the refrigerant is attached to
the product. Take an action according to the MSDS.
WARNING
If refrigerant leaks, provide thorough ventilation.
If an abnormal condition occurs, stop operation
of the unit, and leave it unused until the cause of
the trouble is securely removed. Failure to
observe this instruction may result in damage to
the unit, electric shock, fire or injury.
If an abnormal condition occurs, stop operation immediately.
Be sure to use a commercial power supply.
Using an inverter power supply may result in
burnout.
Use a commercial power supply.
To ensure safety, a cover or casing is mounted to
rotary parts. Do not put a finger or foreign object
in an aperture of the cover or casing. Failure to
observe this instruction may result in injury.
Do not put a finger or foreign object in an aperture of the unit.
After stopping operation, be sure to turn OFF the
circuit breaker.
Turn OFF the circuit breaker.
Oil pollution causes a fault or shortened service
life of the pump. Use thorough caution about oil
pollution to maintain the pollution degree at
NAS10 or lower level.
Perform daily check for oil pollution.
Before you start running the main machine,
cancel the operation lock status with the Oil
Cooling Unit operation panel. If you start the main
machine in the operation lock status, it cannot be
supplied with oil, causing damage to the machine.
Cancel operation lock before running the main machine.
Do not use this unit in a special atmosphere
including dust, oil mist or corrosive gas (H
2 S, SO 2 ,
NO
2 , Cl 2 , etc.), or at a high temperature or high
humidity.
Do not use the unit in special atmosphere.
Before executing a trial run, make sure that the
main machine is set in safe conditions (the main
machine will not run, or no accident occurs even
if the main machine runs.)
Failure to observe this instruction may result in
injury or damage to the machine.
Ensure safety of the main machine before trial run.
Do not put an obstacle within 500 mm from the
air intake/exhaust port.
If air intake/exhaust flow is blocked, this unit may
not provide the specified cooling capacity.
Do not put an obstacle near the air intake/exhaust port.
Clean the air filter at least every two weeks.
If the air filter is clogged, the cooling capacity
deteriorates, and power consumption increases.
Clean the air filter periodically.
Do not sit or step on this unit. Failure to observe
this instruction may result in fall or overturn of
the unit, causing injury.
Do not step on the unit.
Before start of operation, make sure that the oil
pipe is properly connected, and the tank is filled
with oil to an appropriate level.
Running the pump without oil results in damage
to the pump.
Do not run the pump without oil.
Fasten this unit securely so that it will not be moved
by vibration or external force during transportation.
If storing vibration or external force is applied to the
unit, the internal equipment may be damaged.
During transportation, fasten the unit securely.
Before start of operation, make sure that the oil
piping and electric wiring are properly conducted,
and connecting parts are securely tightened.
Check the unit before operation.
Otherwise, you may cut your hand with the
condenser fin edges. Furthermore, the internal
compressor or motor frames and the refrigerant
piping become extremely hot. If you touch these
parts with bare hands, you may get a burn.
When cleaning the unit, wear gloves.
PIM00116C_EN.fm 3 ページ ２００８年９月２９日 月曜日 午前１１時５１分

4
Installation Procedure
Installation
Built-inbreaker
model
Built-intank
model
Different-voltage
model
CEmodel
Built-inheater
model
Installation
Models
OilCooling Unit and Accessories 4
Precautionsfor Installation 5
Referencefor Pipe Selection 6
ElectricWiring 7
CONTENTS
1
Circulating type
Standard
model
Menu
Series
Built-in
breaker
model(–B)
CEmodel
(–C)
Built-in
heater
model(–H)
Built-in
tankmodel
(–T1,–T)
Different-
voltage
model(–E)
AKZ148
AKZ328
AKZ438
AKZ568
AKZ908
Instruction Manual
AKZ8 Series
Ifthe air filter is clogged, the cooling performance deteriorates,
causingexcess power consumption.
Cleanthe air filter periodically to reduce power consumption.
Thankyou for purchasing DAIKIN Oil Cooling Unit (“OILCON”).
Thisinstruction manual includes instr uctions forusing the Oil
CoolingUnit.
Toensure proper use of this product, be sure to read through this
instructionmanual before using it.
Afterreading this manual, keep it handy for your future reference.
MonitorItems 23
TimerOperation 24
AdditionalSetting Functions 25
SettingAdditional Function 27
ForTemperature Control Improvement 30
Alarm/WarningOutput Logic 33
AlarmSettings for Optional Protection
Devices(Installed by User) 33
Handling
BeforeOperation
12ModelIdentification and Specifications
14
PartNames and Functions 15
Namesand Functions of the Control Panel Parts 16
CheckingInitial Operating Conditions 18
OperationSetting 19
HoldingConstant Oil Temperature 20
TuningOil Temperatureto Room Temperature
(orMachine Temperature)
21
CoolingOil at Constant Capacity (%) 22
Optional Parts
Machinetemperature tuning control 34
Returnedoil temperature control 35
Communicationwith main machine 36
Maintenance
37
38
Maintenance/Inspection
•Daily maintenance/inspection
•Periodic maintenance/inspection
•To leave the unit unused fora long period
Troubleshooting
•When the unit operation seems abnormal
althoughno alarm is activated
•When an alarm is activated
SafetyPrecautions
Installation Procedure
Before Operation
Useful Functions
Maintenance
Troubleshooting
Optional Functions
Operating Procedure
DAIKIN Oil Cooling Unit
(“OILCON”)
Proper use results in power saving
PIM00116A
Built-inbreaker
model
Built-intank
model
Different-voltage
model
CEmodel
Built-inheater
model
Installation
Models
OilCooling Unit and Accessories 4
Precautionsfor Installation 5
Referencefor Pipe Selection 6
ElectricWiring 7
CONTENTS
1
Circulating type
Standard
model
Menu
Series
Built-in
breaker
model(–B)
CEmodel
(–C)
Built-in
heater
model(–H)
Built-in
tankmodel
(–T1,–T)
Different-
voltage
model(–E)
AKZ148
AKZ328
AKZ438
AKZ568
AKZ908
Instruction Manual
AKZ8 Series
Ifthe air filter is clogged, the cooling performance deteriorates,
causingexcess power consumption.
Cleanthe air filter periodically to reduce power consumption.
Thankyou for purchasing DAIKIN Oil Cooling Unit (“OILCON”).
Thisinstruction manual includes instr uctions forusing the Oil
CoolingUnit.
Toensure proper use of this product, be sure to read through this
instructionmanual before using it.
Afterreading this manual, keep it handy for your future reference.
MonitorItems 23
TimerOperation 24
AdditionalSetting Functions 25
SettingAdditional Function 27
ForTemperature Control Improvement 30
Alarm/WarningOutput Logic 33
AlarmSettings for Optional Protection
Devices(Installed by User) 33
Handling
BeforeOperation
12ModelIdentification and Specifications
14
PartNames and Functions 15
Namesand Functions of the Control Panel Parts 16
CheckingInitial Operating Conditions 18
OperationSetting 19
HoldingConstant Oil Temperature 20
TuningOil Temperatureto Room Temperature
(orMachine Temperature)
21
CoolingOil at Constant Capacity (%) 22
Optional Parts
Machinetemperature tuning control 34
Returnedoil temperature control 35
Communicationwith main machine 36
Maintenance
37
38
Maintenance/Inspection
•Daily maintenance/inspection
•Periodic maintenance/inspection
•To leave the unit unused fora long period
Troubleshooting
•When the unit operation seems abnormal
althoughno alarm is activated
•When an alarm is activated
SafetyPrecautions
Installation Procedure
Before Operation
Useful Functions
Maintenance
Troubleshooting
Optional Functions
Operating Procedure
DAIKIN Oil Cooling Unit
(“OILCON”)
Proper use results in power saving
PIM00116A
Oil Cooling Unit and Accessories
Check the following items:
Check the model name and serial No. (MFG. No.) on the nameplate attached to the right side of the Oil Cooling Unit.
Oil Cooling Unit
1
An accessory package
∗1
is attached to the top plate of the Oil Cooling Unit. Make sure that the following items are included
in the accessory package.
1. Instruction manual (This document): 1 volume
Keep this manual in place where users can read it whenever required.
2. Rubber bushing for electric wiring (Large size, with cross slit): 1 pc.
When connecting the power cable, remove the resin cable hole cap in the side plate of the unit, and attach the rubber
bushing. It is only for provisional use.
∗2
3. Rubber bushing for electric wiring (Small size, with cross slit): 1 pc.
When connecting the signal cable, remove the resin cable hole cap in the side plate of the unit, and attach the rubber
bushing. It is only for provisional use.
∗2
Accessories
2
∗1: Before operation, be sure to remove the accessory package. Otherwise, the package blocks exhaust air flow, resulting in cooling
capacity deterioration.
∗2: When connecting each cable finally, place the cable in a conduit. If the rubber bushing is used, the dust-proof effect of the electrical
equipment box deteriorates, causing a fault. For details, refer to “Wiring procedure” on page .
8
+
Accessory package
Instruction manual
(This document)
Machine nameplate
Rubber bushing
(Large and small, 1 pc. each)
Model
name
Type of
refrigerant
Manufacture
No.
Oil Cooling Unit
PIM00116C_EN.fm 4 ページ ２００８年９月２９日 月曜日 午前１１時５１分

5
Installation Procedure
Installation
Precautions for Installation
1. Make sure that the pressure loss at the oil inlet/outlet is within the following range:
• Suction pressure (at oil inlet) .......................... –30.7 to 0 kPa
• Discharge pressure (at oil outlet) .................... 0.5 MPa or less
2. Avoid using a valve in the middle of the piping.
If a valve is used, it causes a large pressure loss even when it is fully opened.
3. If the oil viscosity is high, or if there is a large pressure loss in external piping (other than the piping for the Oil Cooling
Unit), use a pipe with a larger diameter to reduce the pressure loss. (To change the pipe size, refer to “Reference for
Pipe Selection” on page .)
If the operating condition exceeds the specified range, it causes noise or fault of the unit. Use thorough caution about
the operating condition. Keep the oil viscosity at 1.4 to 200 mm
2
/s.
4. Wrap the pipe joints with sealing tape to prevent air entry or oil leak.
5. Make sure that the oil piping of the main machine is not blocked (fully closed).
Installation place and oil piping
To install this unit, select a place that meets the following conditions:
Do not place an object that may block air flow within 500 mm from the air intake/exhaust port.
Oil piping: Locations of the oil inlet, oil outlet and oil drain are shown below.
• If the evaporator (cooler) in the Oil Cooling Unit is clogged with dust, it causes not only cooling capacity deterioration, but also
a fault of the compressor or oil pump.
• During adjustment at trial run, the strainer gathers much dust from the oil piping system. Clean the strainer before starting
actual operation. Check the strainer periodically.
Suction strainer (Line filter)
Attach a strainer (mesh size: 100 to 150) with a small pressure loss to the oil piping system.
Oil tank
Right side view Rear view
OIL OUTLET
Exhaust air
Intake air
OIL DRAIN
(No connection)
OIL INLET
• To receive oil from the main machine oil piping system, provide an oil tank that can accept an increase/decrease in oil
quantity.
• Consider the tank structure so that inside of the tank can be easily cleaned. (For example, the tank top plate is detachable.)
1. Level, rigid floor (Inclination: 5˚ max.)
2.
A place where the unit is not exposed to direct sunlight or heat
3. A place with proper ventilation and little humidity
4. A place where exhaust air does not circulate (exhaust air will
not be taken into the unit)
5. A place that allows easy access to piping and wiring
6. A place with little contaminant, waste, dust particles or
oil mist
7. A place free from explosive atmosphere (evolution, inflow,
retention or leak of inflammable gas)
6
PIM00116C_EN.fm 5 ページ ２００８年９月２９日 月曜日 午前１１時５１分

6
Installation Procedure
Installation
10
mm
2
/s
10,00050,000
SUS
Saybolt second
Kinematic viscosity coefficient
5,000
3,000
2,000
1,000
500
400
300
200
150
100
75
50
40
30
20
15
10
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
–10 0 10 20 30 40 50 60
–10 0 10 20 30 40 50 60 70˚C
20 30 40 50 60
Temperature
70 80 90 100 110 120 130 140 150 ˚F
10 20 30 40 50 60
Temperature
70 80 90 100 110 120 130 140 150 ˚F
30,000
20,000
10,000
5,000
3,000
2,000
1,000
68
46
32
22
10
5
2
500
300
200
150
100
80
60
50
45
40
35
ISO VG
Reference for Pipe Selection
Connection pipe diameter (Standard model)
Condition: ISO VG32, Viscosity: 200 mm2/s
∗1: The above pipe size may not be applied to the unit, depending on the pipe specifications. For details, contact DAIKIN.
∗2: Refer to the pipe resistance calculation formula.
Pipe resistance calculation method
To determine the oil pipe size, calculate it based on the following
formula:
Pipe resistance: ∆P = 0.595 × V × Q × L/D4
(For general hydraulic oil/lubrication oil)
∆P: Pipe resistance (MPa)
V: Kinematic viscosity coefficient (mm2/s)
.....See “Viscosity vs.Temperature” chart.
Q: Flow rate (L/min)
L: Pipe length (m)
D: Pipe inner diameter (mm)
∗For flow rate (Q), refer to “Oil pump discharge rate” in
“Model Identification and Specifications” on page .
Oil Inlet
Model
Connection pipe
AKZ148 AKZ328/438 AKZ568/908
Oil Drain
Oil Outlet
Rc3/4
Rc3/4
Rc1/4
Rc1 1/4
Rc1 1/4
Pipe size/maximum pipe length chart
Suction pipe (Hose inner diameter) Unit: m
AKZ148
φ19
Size (mm)
Model
φ25.4 φ31.8 φ38.1
AKZ568
AKZ908
AKZ328
AKZ438
(15)∗1
(12)∗1
6.7
5.5
5
4
6.3
5.1
2.8
2.3
–
–
2.1
1.7
–
–
–
–
–
–
10
8
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
–
–
Discharge pipe Unit: m
AKZ148
φ12.7 φ19 φ25.4 φ31.8
AKZ568
AKZ908
AKZ328
AKZ438
∗2
∗2
28
23
20
16
21
17
9
7
–
–
4.2
3.4
1.8
1.4
–
–
–
–
48
40
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
–
–
∗For menu models, refer to “Model Identification and Specifications” on page .
Example of viscosity (Kinematic viscosity coefficient)
(1) In winter: 195 mm2/s (ISO VG32, Oil temperature: 5˚C)
(2) In summer: 29 mm2/s (ISO VG32, Oil temperature: 40˚C)
(2)
(1)
12 · 13
12 · 13
Size (mm)
Model
PIM00116C_EN.fm 6 ページ ２００８年９月２９日 月曜日 午前１１時５１分

7
Installation Procedure
Installation
Main machine (Machining center)
Power line
Circuit breaker
Power line
Signal
Main machine (Machining center)
Power line
Main machine (Machining center)
Circuit breaker
Remote control switch
Circuit breaker
Control panel
Electric Wiring
n Conduct electric wiring according to the local wiring standard.
n The Oil Cooling Unit (except for the “–B” model) is not equipped with a circuit breaker. A circuit breaker exclusively for the unit
should be mounted to the main machine.
n For electric wiring, refer to the electric wiring diagram on the nameplate attached to the rear of the electrical equipment box cover.
n Do not change the wiring in the Oil Cooling Unit. Do not touch the protection devices.
To turn ON the power supply for the Oil Cooling Unit, the following three methods are available:
When the circuit breaker for the main machine is turned ON, the Oil Cooling Unit starts operation. To stop the unit, turn
OFF the circuit breaker for the main machine.
Directly starting/stopping the Oil Cooling Unit with the main machine power supply
Starting/stopping the Oil Cooling Unit
When the remote control switch is turned ON, the Oil Cooling Unit starts operation. To stop the unit, turn OFF the remote
control switch.
Starting/stopping the Oil Cooling Unit with the remote control contact (see page )
If you keep pressing the and keys for at least 2 seconds in the “operation lock” mode, the Oil Cooling Unit starts
operation according to preset conditions. If you keep pressing the and keys for at least 2 seconds during
operation, “Loc” blinks on the data display, and the Oil Cooling Unit will be stopped (locked).
Starting/stopping the Oil Cooling Unit with the control panel
9
1
2
3
PIM00116C_EN.fm 7 ページ ２００８年９月２９日 月曜日 午前１１時５１分

8
Installation Procedure
Installation
Transformer box
Different-voltage
model (–E)
Power cable insertion
hole (φ28)
Top plate mounting screw
Top plate
Standard model,
–B, –C, –H, –T
For inside of the electrical
equipment box, refer to the top
view of the electrical equipment
box in “Outline of electrical
equipment box” (page ).
For inside of the transformer
box, refer to the transformer
power supply terminal block in
“
Outline of electrical equipment
box
” (page ).
Different-voltage model (–E)
To use an earth leakage breaker, select an inverter-compatible type.
If the earth leakage breaker is not inverter-compatible, it may malfunction due to high-frequency noise of the
inverter. (Recommended product: 15 mA or 20 mA)
CAUTION
Remove the top plate mounting screws, and
remove the top plate.
1. Insert the power cable into the power cable
insertion hole (φ28) in the side plate of the unit.
When using the different-voltage model (–E),
insert the power cable into the transformer box.
2. Insert the remote control signal cable and
external output signal cable into the signal cable
insertion hole (φ22) in the side plate of the unit.
Connect the power cable to the power supply
terminal block. Connect the ground cable to the
PE (ground) terminal.
 The cable size should conform to those listed below, or a larger size.
Model/Series name
Cable type
AKZ148/328/438/568
series
Heat-resistant vinyl,
2.0 mm
2
UL1015 AWG#14
(equivalent to 2.0 mm
2
)
2.5 mm
2
245 IEC53/H05RR-F
AKZ908 series
Heat-resistant vinyl,
3.5 mm
2
UL1015 AWG#12
(equivalent to 3.3 mm
2
)
4.0 mm
2
245 IEC53/H05RR-F
JIS
UL cable
IEC/CENELEC cable
To connect each cable, use M4 (AKZ908: M5) shielded round crimp
terminal.
Place the power cable in a conduit.

For remote control input connecting procedure, refer to page .
 For external output contact connecting procedure, refer to page .
∗ When inserting each cable from the left side of the unit (when viewed
from the front of the unit), place the cable along the guide rail in the
electrical equipment box. Then, fasten the cable to the cable anchor
at the bottom of the electrical equipment box by using a tie band etc.
Re-mount the top plate, and fasten it with the
screws.
∗Mount a circuit breaker exclusively for the Oil Cooling Unit.
The Oil Cooling Unit is not equipped with a circuit breaker. Be sure to mount a 3-pole circuit breaker exclusively for the Oil
Cooling Unit to the main machine. For the breaker capacity, refer to the specifications of each model (see page ).
To ensure safety, it is recommended to use an earth leakage breaker.
(1)(4)
(3)
(2)
(2)
Mounting a circuit breaker
Wiring procedure
1
2
3
4
12 · 13
9
9
9
10
Power cable
insertion hole (φ28)
Signal cable
insertion hole (φ28)
Power cable
insertion hole (φ28)
Signal cable
insertion hole (φ22)
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