Hitachi DSP-132W6N User manual

INSTRUCTION MANUAL

DSP-132W6N

DSP-145W6N

DSP-160W6N

DSP-200W6N

DSP-240W6N

This INSTRUCTION MANUAL explains in detail

the important items that require attention;

observed as the following:

Always observe notations of WARNING, CAUTION

and IMPORTANT, as they indicate considerable

risks to safety.

NEXTseries

Water-Cooled

GRAPHIC DESCRIPTIONS:

WARNING

CAUTION

IMPORTANT

TWO STAGE

Prior to operation of this air compressor,

ensure that all operators read and

understand this INSTRUCTION MANUAL

completely, thereby operating it safely

and properly.

Place the INSTRUCTION MANUAL near

the air compressor to make it available

at any time, and refer to it as the need

arises.

This is a warning. If handled improp-

erly, death or severe injury could

result.

This is a caution. If handled improp-

erly, injury and/or physical damage

could result.

This graphic is for items that need

attention, other than WARNING and

CAUTION.

This graphic is a page number reference.

This graphic is Variable Speed-control

Drive (VSD) models.

HITACHI Oil-Free Rotary Screw Air Compressor

Fixed Speed

DSP-160V6WN

DSP-240V6WN

Variable Speed Drive Control

Water-Cooled

How to Use This Instruction Manual

Model Number Nomenclature

This Instruction Manual covers the standard models of the Hitachi DSP air compressor.

This Instruction Manual intended to assist daily operators and maintenance personnel

in the installation, operation, control and service of the Hitachi DSP air compressor.

Prior to operation of this air compressor, ensure that all operators read and understand

this INSTRUCTION MANUAL completely, thereby operating it safely and properly.

Place the INSTRUTION MANUAL near the air compressor to make it available at any

time, and refer to it as the need arises.

If there are any questions or comments, please contact the local Hitachi distributor or

the nearest Hitachi office.

Fill your DSP’s model name, Serial Number, etc. into the back cover of this Instruction Manual.

Such information may be helpful when ordering parts, periodic maintenance, and overhaul.

Hitachi may make improvements and/or changes in the products described in this publication at any time without notice.

Dry or Oil-Free Rotary

Screw Air Compressor

Packaged

N-Type (NEXT Series

Frequency (6: 60 Hz)

W: Water-Cooled

w/ V: VSD, w/o V: Fixed

Motor Output (kW)

WARNING

Never remove a protective device from the air compressor or modi-

fy the air compressor.

It is imperative to install an earth leakage (ground) circuit breaker

on the power cable. This prevents a ground fault accident.

DSP air compressors are not designed, intended or approved for

breathing air applications. Hitachi does not approve specialized

equipment for breathing air applications and assumes no responsi-

bility or liability for compressors used for breathing air services.

1

Contents

1. SAFETY 2

2.

GENERAL DESCRIPTION

2.1 Appearance 4

2.2 Components 5

2.3 Daily Operating Components 7

3. OPERATING THE DSP 3.1 Instrument Panel 10

3.2 Start/Stop Operation 12

3.3 How to Use the liquid Crystal Display (LCD) 13

3.4 How to Use the Digital Monitor 23

3.5 Daily Operation 30

3.6 Oil Mist Remover Daily Operation 32

3.7 Adjusting the DSP 32

4. TROUBLESHOOTING 4.1 Protective Devices 33

4.2 Troubleshooting the Air Compressor 35

4.3 Troubleshooting the Oil Mist Remover 36

5. INSTALLING 5.1 Unpacking the DSP Air Compressor 37

AND PIPING THE DSP 5.2 Conveying the DSP Air Compressor 37

5.3 Installing the DSP Air Compressor 38

5.4 Piping the DSP Air Compressor 39

5.5 Ventilation of Air Compressor Room 43

6. STARTUP OPERATION 6.1 Air Compressor 44

6.2 Oil Mist Remover 46

7. WIRING 7.1 Power Supply Transformer and Power Cable 47

7.2 MIV and WIVM wiring 47

7.3 Connecting a Power Cable 47

7.4 Wiring Connection Diagram 50

7.5 Control Panel /LCD monitor Specifications 50

8.

STANDARD COMPONENTS

8.1 Standard Components 57

AND SUBSYSTEMS

8.2 Air/Oil Flow 58

8.3 Cooling Water 61

8.4 Capacity Control System 62

8.5 Outline of Oil Mist Remover Subsystem 66

9.

MAINTAINING THE DSP

9.1 Air Compressor Maintenance 67

9.2 Standard Maintenance Schedule 68

9.3 Oil Mist Remover Maintenance 72

9.4 How to Service the DSP Air Compressor 73

10.

PRECAUTIONS WHEN THE COMPRESSOR IS TO BE IDLE FOR AN EXTENDED PERIOD OF TIME

84

11. PARTS LIST 85

12. WARRANTY, AFTER-SALES AND SERVICE 103

13. OPERATION RECORD LOGBOOK 104

14. STANDARD SPECIFICATIONS 105

Air End

Discharge Air pipe

Air End

Discharge Air pipe

Intercooler Header

Aftercooler Header

Rotating Parts!

Keep hands and rods, etc. away from

the rotating parts (Cooling fans, etc.)

Use caution at all times, when air com-

pressor is powered. The air compres-

sor may be capable of restarting with-

out hitting the START button.

When the air compressor is operating,

do not remove or open the enclosure

panels and doors.

Before servicing the air compressor,

stop it, disconnect the power, especially

when accessing any rotating parts.

WARNING

Hot Surface!

Do not directly touch any component

inside the air compressor enclosure

when the air compressor is operating

or immediately after it has stopped,

as the components are extremely hot

and can cause severe injury.

Before servicing the air compressor,

stop it, disconnect the power, then

wait for the air compressor to cool

down.

Heated!!

Hot Surface!

Do not directly touch any component

inside the air compressor enclosure

when the air compressor is operating

or immediately after it has stopped,

as the components are extremely hot

and can cause severe injury.

Before servicing the air compressor,

stop it, disconnect the power, then

wait for the air compressor to cool

down.

Heated!!

WARNING

Electric Shock Hazard!

Before servicing or wiring the

air compressor, disconnect

the power. This will prevent

anyone from turning on the

power and causing an elec-

tric shock that could lead to

severe injury or death.

Do not allow any unlicensed

person to wire the air compres-

sor. Always use a licensed

electrician.

Ground the air compressor.

WARNING

Electric Shock Hazard!

Before servicing or wiring the

air compressor, disconnect

the power. This will prevent

anyone from turning on the

power and causing an elec-

tric shock that could lead to

severe injury or death.

Do not allow any unlicensed

person to wire the air compres-

sor. Always use a licensed

electrician.

Ground the air compressor.

To ensure safe and proper operation of the air compressor, it is indispensable to carefully

read and understand the following warnings and instructions detailed below. These warn-

ings and instructions are attached to the air compressor as shown in the figure below.

2

1. SAFETY

Do Not Breathe Air!

Discharge air can contain Carbon Monoxide and

other contaminants. Breathing the air can cause

severe injury or death.

High Pressure Air!

High pressure air can cause severe injury or death.

Be careful when air compressor is operating.

Pressurized air can blow out of safety relief valves

and etc. at incredibly high velocities.

When using compressed air to clean equipment,

use extreme caution and/or wear eye protection.

Before servicing the air compressor, stop it,

disconnect the power, and relieve pressure before

removing filter, plug, fitting or cover.

Rotating Parts!

Keep hands and rods, etc. away from the rotating

parts (Cooling fans, etc.)

Use caution at all times, when air compressor is

powered. The air compressor may be capable of

restarting without hitting the START button.

When the air compressor is operating, do not

remove or open the enclosure panels and doors.

Before servicing the air compressor, stop it, dis-

connect the power, especially when accessing

any rotating parts.

Electric Shock Hazard!

Before servicing or wiring the air compressor,

disconnect the power. This will prevent anyone

from turning on the power and causing an electric

shock that could lead to severe injury or death.

Do not allow any unlicensed person to wire the air

compressor. Always use a licensed electrician.

Ground the air compressor.

WARNING WARNING

WARNING

Hot Surface!

Do not directly touch the air end, discharge air

pipe,and coolers when the air compressor is

operating and immediately after it has stopped,

because these parts are heated then.

Before servicing the air compressor (especially

when accessing to the heated parts), stop it, discon-

nect the power, and wait until it is cooled down.

WARNING

CAUTION

Preoaution against Fire!

Keep any other hazardous materials such as

flammable solvents away from the air compressor.

Also do not use fire nearby it; otherwise a spark

may enter the air compressor and burn it internally.

Do not remove any protective relay s. Also do

not make a modification of the control circuit that

may result in impairing the protective relay s

function. Remember that the loss of the protective

relay s function may cause serious damage.

Install an earth leakage circuit breaker between

the air compressor and the power supply. Do not

use a disconnector such as a knife switch

because it cannot protect the air compressor and

may cause burnout of the air end if a ground fault

has occurred.

3

1. SAFETY

4

2. GENERAL DESCRIPTION

Front Left Door

Model designation,

manufacturing number

and specification are

printed.

This panel discharges

the hot air generated

in the air compressor.

Compressor Name plate

Instrument Panel

See page p. 10, chap-

ter 3, for details.

Open the front left

door only when servic-

ing the DSP air com-

pressor. Keep it closed

when operating the

DSP air compressor.

Air Exhaust

(Air Compressor Package)

Enclosure

Enclosure panels

lower the sound level

of the air compressor

package.

Plate of Operating /

Servicing Instructions

Read carefully the

plate before operating

and servicing the DSP.

Power Supply Port

Check the specifica-

tions, power supply

and voltage before

connecting the power

supply.

Air Exhaust

Air Intake

Oil Filling Port

Use the port to fill the

gear case with oil.

OMR

See page 55 for the

details

Oil Level Gauge

This indicates the

quantity of the oil in

the gear case. Check

the oil level before

starting the DSP and

when operating it.

Sling Fitting

Use the sling fitting

when moving and

installing the DSP air

compressor.

Air Intake

(Air Compressor Package)

Compressed Air Discharge

Air Intake

(Inlet to the Air End)

2.1 Appearance

2.1.1 Fixed Speed

This section illustrates and describes the major components of the DSP air compressor. Be familiar

with the name, location and function of each component before using the DSP air compressor.

[Front View]

[Rear View]

5

2. GENERAL DESCRIPTION [Appearance]

2.1.2 Variable Speed Drive Control

[Front View]

Air Exhaust

Air Intake

Instrument Panel

See page p. 10, chap-

ter 3, for details.

Front Left Door

Open the front left

door only when servic-

ing the DSP air com-

pressor. Keep it closed

when operating the

DSP air compressor.

Power Supply Port

Check the specifica-

tions, power supply

and voltage before

connecting the power

supply.

This panel discharges

the hot air generated

in the air compressor.

Air Exhaust

(Air Compressor Package)

Enclosure

Enclosure panels

lower the sound level

of the air compressor

package.

Plate of Operating /

Servicing Instructions

Read carefully the

plate before operating

and servicing the DSP.

Sling Fitting

Use the sling fitting

when moving and

installing the DSP air

compressor.

Air Intake

(Air Compressor Package)

Compressed Air Discharge

Air Intake

(Inlet to the Inverter)

Oil Filling Port

Use the port to fill the

gear case with oil.

OMR

See page 66 for the

details

Oil Level Gauge

This indicates the

quantity of the oil in

the gear case. Check

the oil level before

starting the DSP and

when operating it.

Compressed Air Discharge

[Rear View]

6

2. GENERAL DESCRIPTION [Components]

2.2 Components

Ventilating Fan

Check Valve

Intercooler

Aftercooler

Oil Filter

Air Intake Filter

1st-Stage Air end

2nd-Stage Air end

Main Motor

Oil Mist Remover

Discharge Pipe

(Compressed Air Discharge)

Oil Level Gauge

Common Base

Starter /

Control Box

Safety Relief Valve

Enclosure

Instrument Panel

Gear Case

Oil Filling Port

Oil Pump

Oil Cooler

Intercooler

Blow-off air cooler

7

2. GENERAL DESCRIPTION [Daily Operating Components]

Verify that the oil level of the lubricating oil is

between the red lines during operation.

Lubricating oil circulates in the cooler and piping during

operation, so the position of the oil level differs when the

compressor is running and when it is off. The level rises

when the compressor stops running.

Oil Filling Port

Oil Level Gauge

Indicates the operation control section.

(

For more information, see Chapter 3, on

page 10.)

Operation ON POWER light on.

Start: Press START button Operation Light on

during operation

Stop: Press UNLOAD STOP button

unloading

stops for 5 minutes Operation Light off during

operation

Power OFF: POWER light off

2.3 Daily Operating Components

Controls on the Instrument Panel

Aftercooler and Intercooler - Condensate Drain Valve

Lubricating Oil

Oil Level Gauge

Oil: Use genuine Hitachi GL-68 DSP Compressor Oil.

Replace the oil every 8,000h operating hour or

every 2-year, whichever comes earlier.

10h

UNLOAD STOP

Intercooler

drain port

After cooler

drain port

Verify that air containing drainage is discharged

intermittently from the intercooler and after cooler

drain ports.

The higher the temperature and humidity, the more drainage

is produced. Drainage may not be produced on the intercool-

er side during winter.

8

2. GENERAL DESCRIPTION [Daily Operating Components]

Control Line Filter (Fixed Speed)

Check the condensate drain discharge from the

control line filter by checking the sight glass on the

control line filter.

Control Line Filter

Sight Glass

Shut off the cooling water when the compressor is

off.

Open the peacock for draining water. Also open

the valve of the water drain port and drain the

cooling water.

Be especially careful of freezing during the winter.

(

For details, see page 61.)

Water drain peacock

Water drain port

Cooling Water

9

2. GENERAL DESCRIPTION [Daily Operating Components]

Normally use UNLOAD STOP button to stop the

compressor. The compressor then unloads for 5

minutes and stops running.

(In the case of an emergency, press the STOP

button to stop operation.)

Stopping operation

10h

UNLOAD STOP

Keeping the second-stage air end as dry as possible is

essential for preventing it from rusting due to a long-

term operation suspension. When stopping the DSP,

therefore, execute an unloading operation and thereby

remove the moisture from the second-stage air end.

IMPORTANT

10

3. OPERATING THE DSP

3.1 Instrument Panel

Liquid Crystal Display

(LCD)

Displays the operation data,

various setting, shutdowns/

alarms information, etc

( page 13)

MONITOR Button

Enables movement within

each of the monitoring

displays (M1, M2) and the

message display (M3). This

button also enables you to

return to the M1 display from

the FUNCTION MENU

display ( page 13).

AUTO light (yellow)

ON (glowing) when an

automatic operation (an

AUTO operation, a schedul-

ing operation, or lead/lag

operation) is activated.

ON (flashing) when external

calendar or scheduling

operation is abnormal.

( page 16, 20)

RESET Button

Reset the system or cancels

the shutdown/alarm circuit

( page 15)

MENU Button

Functions to display the

menu screen and move the

cursor.

( page 18)

+/- UP DOWN Buttons

SET Button

It saves any adjusted set

points.

Contrast adjustment

SET+[ ] button operation:

Brightens the display.

SET+[ ] button operation:

Darkens the display.

( page 22)

Each of these buttons act as

an up-arrow, down-arrow

and right-arrow key.

( page 18)

11

3. OPERATING THE DSP [Instrument Panel]

10h

UNLOAD STOP

Digital Monitor

In addition to basic settings, used

to set various types of setting

values in combination with the LCD

monitor. ( page 22)

STOP Button

Used to stop the compressor

immediately without first unload-

ing. ( page 12)

UNLOAD STOP Button

Used for normal stop. Stops

after the compressor and air

hoses are dry. ( page 12)

SELECT/WIDE Button/Light (Yellow)

Press to confirm various types of

setting values, shutdown history,

and setting status. (

page 24, 25

)

To set to ECONOMODE (energy

conservation mode) (standard type

only), press and hold the SELECT/

WIDE button for at least 7 seconds.

The light flashes and ECONOMODE

is set.

START Button

REMOTE Button

Activates or deactivates a remote

start/stop operation locally or on

the instrument panel. it also acts

as a right-arrow key stop

( page 28).

Starts the air compressor.

The OPERATION light (red) turns

on while the compressor is running.

Press this button to stop the air compressor.

The air compressor will stop after removing the

condensate from the air end.

This stop button is effective while a stand alone operation.

EMERGENCY STOP button

Stops for emergency.

( page 12)

POWER light (yellow):

ON (glowing) when the power to the air compressor is turned on.

REMOTE light (green):

ON (glowing) when the REMOTE button is pressed in

order to activate a remote operation.

ON (flashing) when an external remote-operation-activation switch has

been turned on in order to activate a remote operation.

( page 28)

LOAD light (yellow):ON (glowing) when the air compressor is loading.

AUTO START light (green):

ON (glowing) while the air compressor is in a stop due to an

AUTO operation, lead/lag operation, or scheduling operation.

ON (blinking) while the air compressor is in a stop due to a

restartable instantaneous power interruption. ( page 16)

SHUTDOWN light (red):

ON (either glowing or blinking) when a shutdown/alarm

problem has occurred. ( page 15)

RUNNING MODE Light

S

T

O

P

E

M

E

R

G

E

N

C

Y

3.2.1 Connecting the Power

When you connect the power, the POWER light turns on

and the LCD monitor displays the following screen for 5

seconds, and then switches to the monitor screen (M1)

that displays control settings, discharge air pressure, and

total operating hours.

If phase is reversed, “Connection Error: Reverse

Phase” is displayed on the LCD monitor for setting and

connection inspection. In this case, switch 2 of the 3

main power cables.

If there is no phase, “Connection Error: No Phase” is

displayed on the LCD monitor. In this case, check the

power cables.

3.2 Start/Stop Operation

COMPRESSOR MONITOR

CONTROLLER

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㻸㻻㻭㻰㼀㻵㻹㻱䠖㻞㻠䡏

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㻻㼁㼀㻼㼁㼀䠖㻝㻜㻚㻡䡇䠳

The asterisk flashes when the clock and total run-

ning hours are engaged.

5 sec

3.2.2 Start/Stop

When the START button is pressed the START light

turns on and the compressor starts operating. When run-

ning, the asterisk on the right side of running hours

flashes and running time is counted.

To stop, press the UNLOAD STOP button. Operation

stops when the air end and the air piping have dried for 5

minutes.

To stop the compressor immediately without unloading,

press the STOP button.

Note: If the STOP button is pressed while unloading, the

compressor stops immediately.

3.2.3 Emergency Stop

Pressing EMERGENCY STOP botton, the DSP com-

pressor immediately.

This switch should only be pressed in emergency.

The compressor can not be restarted until the switch is

manually reset. Turn the switch knob clockwise and

press the RESET button to reset.

12

3. OPERATING THE DSP [Start/Stop Operation]

13

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㼀㼅㻼㻱䠖㼂㻿㻰㻭

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㻯㼁㻾㻾㻱㻺㼀䠖㻡㻜䠝

㻲㻾㻱㻽㼁㻱㻺㻯㼅䠖㻞㻟㻚㻤䠤䡖

㻻㼁㼀㻼㼁㼀䠖㻝㻜㻚㻡䡇䠳

Monitoring Displayp.12

M1 Monitoring Display

M2 Monitoring Display

M3 Monitoring Display

Message Displayp.13

Function Menu Displayp.16

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㻰㻵㻿䠊㼀㻱㻹㻼㻞䠖㻟

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㻟㻤䉣

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㻹㻭㻵㻺㼀㻱㻺㻭㻺㻯㻱

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㻺㻱㼄㼀㻌㻹㻭㻵㻺㼀䠖㻖㻖㻖㻖

Function Menu Display

㼇㻲㼁㻺㻯㼀㻵㻻㻺㻹㻱㻺㼁㼉

㻝䠊㻮㻭㻿㻵㻯㻌㻿㻱㼀㼁㻼

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㼀㼅㻼㻱䠖㼂㻿㻰㻭

㼀㼁

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㼜㼟㼕

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㻯㻻㻻㻸㻭㻺㼀䠖

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㼜㼟

㻴㻵㻳㻴㻌㻰㻵㻿䠊㼀㻱㼜㼟㼕

㼕

㻯㻻㻺㼀㻭㻯㼀㻻㻾㻌㻱㻾㻾䠖

㻻㼂㻱㻾㻸㻻㻭㻰䠖

㻸㻻㼃㻌㼃䠊㻵㻺㼀㻿㼀㻳㻌㻼䠊

㻰㻾㼅㻱㻾㻌㻌㻌㻌㼃䠋㻻㻌㻿㻱㻼䠊

㻱㻸㻱㻹㻱㻺㼀

㻼㼞㼑㼟㼟㻾㻱㻿㻌㼍㼒㼠㼑㼞㻌㻯㻴㻷䠊

㻝

3.3.1 How to Move between the Various Displays

Menu Displays

Follow the bottom line message on the display.

3.3 How to Use the liquid Crystal Display (LCD)

About the LCD Backlight

(1) In the event that no button has been used for 10

minutes, the LCD backlight automatically turns OFF

for protection to the display panel. It comes ON

again if any button is pressed, other than the

START and STOP buttons.

(2) If an event happens while the LCD backlight is off,

the backlight automatically turns ON and stays ON

as long as the event exists. Remote and instant

stop mode can't be set by the LCD monitor.

Set after referring to “3.4 How to Use the Digital

Monitor.” (

page 21)

Monitoring Displays

There are three monitoring displays: M1, M2, and

M3. To move between these displays, press the

MONITOR button.

3. OPERATING THE DSP [How to Use the Liquid Crystal Display (LCD)]

Message Display

There is only one message display: M3 (the contents,

however, vary from time to time). It is available only

when some event (air compressor alarm or shutdown,

maintenance notice, etc.) has occurred. Once an event

happens, however, the M3 message display appears

immediately and automatically. From the M3 display,

pressing the MONITOR button will switch the LCD

to the M1 or M2 monitoring displays; but after

approximately ten (10) seconds, the M1 or M2 moni-

toring displays will revert back to the M3 display.

IMPORTANT

3.3.2 Typical Monitoring Displays

VSDASAVE

ECOMODE

(Energy Conservation Mode)

“SAVE” is displayed on the monitor

screen.

Displayed when stop is limited for AUTO opera-

tion (standard: no symbol).

INTE Fixed speed type control (load/unload operation)

AUTO Fixed speed type control

(AUTO operation optional)

VSDB V type control (AUTO function off)

VSDA V type control (with AUTO function, V type standard)

EXIT Setting display when capacity control is executed

externally

MR Multiple unit control connection by communication

control

1

2

3

4

5

6

7

8

9

㻞㻜㻜㻥䠋㻜㻠䠋㻝㻟㻝㻥䠖㻜㻞

㼀㼅㻼㻱䠖㼂㻿㻰㻭

㻰㻵㻿䠊㻼㻾㻱㻿㻿䠖㻜䠊㻜㻜㼜㼟㼕

㻖

㻾㼁㻺㻌㻴㻻㼁㻾䠖㻝㻞㻜䡄

㻸㻻㻭㻰㻌㻴㻻㼁㻾䠖㻡㻠䡄

㻸㻻㻭㻰㼀㻵㻹㻱㻿䠖㻝㻞㻟

㻸㻻㻭㻰㻾㻭㼀㻱䠖㻝㻝䠂

㻸㻻㻭㻰㼀㻵㻹㻱䠖㻞㻠䡏

㼁㻺㻸㻻㻭㻰㻌㼀㻵㻹㻱䠖㻝䡏

㻯㼁㻾㻾㻱㻺㼀䠖㻡㻜䠝

㻲㻾㻱㻽㼁㻱㻺㻯㼅䠖㻞㻟㻚㻤䠤䡖

㻻㼁㼀㻼㼁㼀䠖㻖㻖㻚㻖䡇䠳

㻹㻭㻿㼀㻱㻾

10

11

㻞㻜㻜㻥䠋㻜㻠䠋㻝㻟㻝㻥䠖㻜㻞

㻼㻾㻱㻿㻿㼁㻾㻱

㻵㻺㼀㻿㼀㻳䠊㻼䠖㻌㻌㻞㻥㼜㼟㼕

䠆

㻻㻵㻸㻌㻼㻾㻱㻿䠖㻌㻌㻝㻡㼜㼟㼕

㻯㻸㼀䠊㻼㻾㻱㻿䠖㻖䠊㻖㻖㼜㼟㼕

㼀㻱㻹㻼㻱㻾㻭㼀㼁㻾㻱

㻰㻵㻿䠊㼀㻱㻹㻼㻝䠖㻟㻞㻜䉣

㻰㻵㻿䠊㼀㻱㻹㻼㻞䠖㻟

㻝

㻟㻤䉣

㻻㻵㻸㻌㼀㻱㻹㻼䠖㻟㻣䉣

㻯㻸㼀䠊㼀㻱㻹㻼䠖㻖㻖㻖䉣

㻞㻺㻰㻌㻿㼁㻯㼀䠊㼀䠊䠖㻜㻤䉣

㻹㻭㻵㻺㼀㻱㻺㻭㻺㻯㻱

㻴㻾䠊㼀㻻㻌㻹㻭㻵㻺㼀䠖㻜㻜㻜㻜䡄

㻺㻱㼄㼀㻌㻹㻭㻵㻺㼀䠖㻖㻖㻖㻖

㻝

(1) Displays current time. Asterisk flashes.

(2) Indicates a capacity control type.

(3) Displays compressor discharge port pressure.

(4) Indicates total running hours (RUN HOUR), total

loaded hours (LOAD HOUR), and total number of

loads (LOAD TIMES.).

Blink asterisk indicates running time is being mea-

sured.

(5) Indicates a percentage of load to unload of the DSP air

compressor (LOAD RATE), For Vtype, the rate is cal-

culated based on only frequency. Indicates “”,

if PQ wide mode is selected.

When the DSP is operating normally, typical monitoring

displays appear as follows.

M1 Monitoring Display

M2 Monitoring Display

(6) Indicates the amperage current of the main motor

(CURRENT).

(7) Displays an operating frequency of main motor.

(V type only. Fixed speed type displays )

(8) Indicates “ ” for this air compressor.

(9) Displays master or slave control status when in lead/

lag operation mode.

(10) Displays various pressures and temperatures.

(Asterisk indicates not in use.)

(11) Displays time remaining till next inspection as main-

tenance period and next maintenance period.

Current is an approximate S-phase ampere.

Output is reference value of calculated power.

IMPORTANT

14

3. OPERATING THE DSP [How to Use the Liquid Crystal Display (LCD)]

Alarm Messages

In the case an alarm occurs for the compressor, the ALARM light and contents / details displayed on alarm screen on

the LCD monitor flash and operation continues. There are 2 types of alarm screens: ALARM PROBLEM

Take the proper corrective action, and press the RESET button.

For further information,

see pages 33, 34.

NOTE) Malfunction detection of water failure is available for only water cooled single stage compressor. Malfunction

detection of dryer is available for only built-in dryer models. Malfunction detection of oil water separator and

element is not available.

3.3.3 Message Displays

Shutdown Messages

When a shutdown occurs for the compressor, the SHUTDOWN light and shutdown contents on the LCD monitor

(contents are displays on the left side and details are displayed on the right side) flash and the compressor stops run-

ning. There are 2 types of screens for shutdown: SHUTDOWN and FAILURE.

㻞㻜㻜㻣䠋㻜㻤䠋㻜㻝㻝㻥䠖㻝㻥㻖

㼀㼅㻼㻱䠖㼂㻿㻰㻭

㼀㼁

㻰㻵㻿䠊㻼㻾㻱㻿㻿䠖㻌㻌㻢㻣㼜㼟㼕

䠘㻿㻴㼁㼀㻰㻻㼃㻺䠚

㻯㻻㻻㻸㻭㻺㼀䠖

㻻㻵㻸䠖

㻞䠪㻰㻌㻿㼁㻯㼀䠊㼀㻱㻹㻼

㻴㻵㻳㻴㻌㻰㻵㻿䠊㼀㻱㻹㻼䠖

㻌

㻯㻻㻺㼀㻭㻯㼀㻻㻾㻌㻱㻾㻾䠖

㻻㼂㻱㻾㻸㻻㻭㻰䠖

㻸㻻㼃㻌㼃䠊㻵㻺㼀㻿㼀㻳㻌㻼䠊

㻰㻾㼅㻱㻾㻌㻌㻌㻌㼃䠋㻻㻌㻿㻱㻼䠊

㻱㻸㻱㻹㻱㻺㼀

㻼㼞㼑㼟㼟㻾㻱㻿㻌㼍㼒㼠㼑㼞㻌㻯㻴㻷䠊

Take the proper corrective action, and press the RESET button.

For further information,

see pages 33, 34.

NOTE) Malfunction detection of water failure is available for only water cooled single stage compressor. Malfunction

detection of dryer is available for only built-in dryer models. Malfunction detection of oil water separator and

element is not available.

(Example)

Example of temperature sensor malfunction, sensor 1 discon-

nection FAILURE and TEMPERATURE SENSOR flash and

the location of the abnormality is indicated.

㻞㻜㻜㻥䠋㻜㻤䠋㻜㻝㻝㻥䠖㻝㻥㻖

㼀㼅㻼㻱䠖㼂㻿㻰㻭㻌

㻌㻌㻌㻌㻌

㻰㻵㻿䠊㻼㻾㻱㻿㻿䠖䚷䚷㻢㻣㼜㼟㼕

䠘㻲㻭㻵㻸㼁㻾㻱䠚

㻿㼅㻿㼀㻱㻹㻱㻾㻾䠖㼙㼙㼙㼙

㻿㼅㻿㼀㻱㻹㻌㻾㻱㼀㻾㼅

㻼㻯㻮㻌㻱㻾㻾䠖㼚㼚㼚㼚㼚㼚

㻼㻾㻱㻿㻿䠊㻿㻺㻿㻾㻌㻱㻾㻾䠖㼛

㼀㻱㻹㻼䠊㻿㻺㻿㻾㻱㻾㻾䠖㼜

㻰䡅㼟㼏㼛㼚㼚㼑㼏㼠㼜㼛㼣㼑㼞

㼟㼚㼐㼏㼛㼚㼠㼍㼏㼠

㼐㼕㼟㼠㼞䡅㼎㼡㼠㼛㼞

㻞㻜㻜㻥䠋㻜㻤䠋㻜㻝㻝㻥䠖㻝㻥㻖

㼀㼅㻼㻱䠖㼂㻿㻰㻭㻌

㻌㻌㻌㻌㻌

㻰㻵㻿䠊㻼㻾㻱㻿㻿䠖䚷䚷㻢㻣㼜㼟㼕

䠘㻼㻾㻻㻮㻸㻱㻹䠚

㻯㻻㻺㻺㻱㻯㼀㻵㻻㻺㻌㻱㻾㻾䠖㻌㻌㻌

㻾㼑㼏㼛㼚㼚㼑㼏㼠㻌㼜㼛㼣㼑㼞䠊

㻹㼁㻸㼀䠥㻙㼁㻿㻱㼀㻱㻾㻾

㻿㻯㻴㻱㻰㼁㻸㻱㻌㻿㻱㼀㻌㻱㻾㻾

㻯㻻㻹䠊㻱㻾㻾㻌㻿㼀㻻㻼䠖㻌㻌㻌㻌㻌

㻯㻻㻹䠊㻱㻾㻾㻌㻭㻸㻹䠖㻌㻌㻌㻌㻌

㻮㻭㼀㼀㻱㻾㼅㻌㻻㼁㼀

㻼㼞㼑㼟㼟㻾㻱㻿㼍㼒㼠㼑㼞㻯㻴㻷䠊

㻞㻜㻜㻥䠋㻜㻤䠋㻜㻝㻝㻥䠖㻝㻥㻖

㼀㼅㻼㻱䠖

㼂

㻿㻰㻭㻌㻌㻌㻌㻌㻌

㻰㻵㻿䠊㻼㻾㻱㻿㻿䠖䚷䚷㻢㻣㼜㼟㼕

䠘㻭㻸㻭㻾㻹䠚

㻰㻵㻿䠊㼀㻱㻹㻼䠖䠄㻌㻌㻌䠅㻖㻖㻖䉣

㻻㻵㻸㻌㼀㻱㻹㻼䠖㻖㻖㻖䉣

㻸㻻㼃㻌㻻䠊㻼䠊䠖㻖䠊㻖㻖㼜㼟㼕

㻯㻸㼀䠊㼀㻱㻹㻼䠊䠖㻖㻖㻖䉣

㻸㻻㼃㻌㻯㻸㼀䠊㻼䠖㻖䠊㻖㻖㼜㼟㼕

㻞䠪㻰㻙㻿䠊㼀㻱㻹㻼㻌㻲㻵㻺㻙㼀

㻸㻻㼃㻌㼃䠊㻸㻻㼃㻌㻻㻵㻸

㻰㻾㼅㻱㻾㻭㻵㻾㻌㻲㻵㻸㼀㻱㻾

㻸䠊㻯㻻㼁㻺㼀㻌㻻㼂㻱㻾㻌㼃䠋㻻㻌㻿䠊

㻼㼞㼑㼟䡏㻾㻱㻿㼍㼒㼠㼑㼞㻌㻯㻴㻷䠊

(Example)

In the case the thermal relay trips and the compressor stops

running, SHUTDOWN and OVERLOAD flash and the mal-

function part of the main circuit is indicated.

15

3. OPERATING THE DSP [How to Use the Liquid Crystal Display (LCD)]

(Example)

In the case ALARM and AIR FILTER flash while the com-

pressor is running, it indicates the filter is clogged.

(Example)

Example of battery replacement period.

ALARM and PROBLEM messages are treated as alarms, but aside from connection abnormalities that make operation impos-

sible such as reverse phase and no phase when power is turned on, they also may indicate shutdown due to malfunction of the

communication status.

IMPORTANT

Messages of Automatic Stop Display and Automatic Restart Display

When the DSP air compressor has automatically stopped, the following screen is displayed, the AUTO START light

flashes/lights, and the RESTART message screen and details of contents flash on the LCD monitor.

㻞㻜㻜㻥䠋㻜㻤䠋㻜㻝㻝㻥䠖㻜㻞㻖

㼀㼅㻼㻱䠖㼂㻿㻰㻭㻌

㻌㻌㻌㻌㻌

㻰㻵㻿䠊㻼㻾㻱㻿㻿䠖䚷䚷㻢㻣㼜㼟㼕

䠘㻾㻱㻿㼀㻭㻾㼀䠚

㻾㻱㻿㼀㻭㻾㼀㻭㼀䠖䠆䠆䠖䠆䠆

㻾㻱㻿㼀㻭㻾㼀㼃㻭㻵㼀䠖㻌㻞㻣䡏

㻺㻻㼃䠈㻿㼀㻻㻼㻼㻱㻰䠞䠵䠖

㻿㻯㻴㻱㻰㼁㻸㻱㻿㼀㻻㻼

㻭㼁㼀㻻㻹㻭㼀㻵㻯㻿㼀㻻㻼

㻰㻾㼅㻱㻾㻼㻾㻱㻿㼀㻭㻾㼀㻱㻰

㻰㼁㻭㻸䠋㻮㻭㻯㻷㼁㻼

㻵㻼㻵㻌㻾㻱㻿㼀㻭㻾㼀

㻯㼀㻸㻾䠊㻾㻱㼀㻾㼅

16

3. OPERATING THE DSP [How to Use the Liquid Crystal Display (LCD)]

SCHEDULED STOP: Schedule operation setting

AUTO light ON

When schedule is set on the scheduled operation

screen, displays state of operation being stopped by

preset time. Operation starts automatically when the

preset restart time comes.

LEAD/LAG OPERATION STOP

(Note: applies only to machines equipped with two-

unit alternate operation.)

AUTO light ON

When the operation control mode is set to dual or

backup on the operation mode setting screen, standby

status of the slave machine in dual or backup operation

is indicated.

DRYER PRESTARTED

(Note: Applies only to machines equipped with a

built-in dryer.)

AUTO START light flashes

When dryer prestart is set, the dryer starts operating

in advance, and compressor stopped status is indicat-

ed.

RESTART WAIT time is counted down.

AUTO OPERATION

(Note: Applies only to machines equipped with

AUTO function)

AUTO START light ON

Indicates status stopped by low load when set to

AUTO operation. AUTO START light flashes during

restart limit while stopped, and RESTART WAIT time

is counted down.

INSTANT STOP / RETRY

(Note: Retry applies to V type only.)

AUTO START light flashes

Displays status of restart for instantaneous power

interruption (IPI) restart and V type retry.

RESTART WAIT time is counted down.

Maintenance Notice Messages

A maintenance date is determined by the amount of total operating hours or an elapsed calendar period, whichever

comes first. When the maintenance date or time arrives, the maintenance notice message appears on the display under

the heading of MAINTenance.

This function is an alarm display only, and does not output alarm externally.

Replace suction throttle valve consumable parts when inspection maintenance is displayed or the 1 million unloader

count alarm is given, whichever comes first.

If the inspection/maintenance is displayed, check the display contents, refer to maintenance standards

given in the compressor instruction manual and perform inspection/maintenance as soon as possible.

When inspection is complete, press and hold the SET button for at least 7 seconds.

The LCD monitor display contents then move to “Maintenance initial value completed” of the message

screen, and then return to the monitor screen 1 minute later.

Other Messages

(3) UNLOAD STOP

If the UNLOAD STOP button is used, the display

flashes. The compressor unloads for 5 minutes and

then stops.

17

3. OPERATING THE DSP [How to Use the Liquid Crystal Display (LCD)]

㻞㻜㻜㻥䠋㻜㻤䠋㻜㻝㻝㻥䠖㻜㻞㻖

㼀㼅㻼㻱䠖㼂㻿㻰㻭㻌

㻌㻌㻌㻌㻌

㻰㻵㻿䠊㻼㻾㻱㻿㻿䠖㻌㻌㻢㻣㼜㼟㼕

䠘㻹㻱㻿㻿㻭㻳㻱䠚

㻹㻭㻵㻺㼀䠊䠖㻝㼅㻱㻭㻾㻌㻌

㻹㻭㻵㻺㼀䠊䠯䠟䠤䠡䠠䠱㻸䠡䠖㻭

㻼㼞㼑㼟㼟㻿㻱㼀㻌㼍㼒㼠㼑㼞㻌㻯㻴㻷䠊

㻹㻭㻵㻺㼀䠊㻯㻻㻹㻼㻸㻱㼀㻱㻰

㻿㼃㻵㼀㻯㻴㻱㻰㻌㼀㻻㻌㻸㻻㻯㻭㻸

㻵㻺㻌㻻㼂㻱㻾䠮㻵㻰㻱㻹㻻㻰㻱

㻵㻺㻌㼁㻺㻸㻻㻭㻰㻌㻿㼀㻻㻼

㻿㼃㻵㼀㻯㻴㻱㻰㻌㼁㻌㻹㻻㻰㻱

Every these calendar periods: Service the DSP according to the schedules:

0.5 years, 1.5 years, 2.5 years

3.5 years, 4.5 years, 5.5 years

Half-Yearly

1.0 years, 5.0 years Yearly + Half-Yearly

2.0 years, 4.0 years 2-Yearly + Yearly + Half-Yearly

3.0 years 3-Yearly + Yearly + Half-Yearly

6.0 years (for overhauling)

6-Yearly + 3-Yearly + 2-Yearly + Yearly + Half-Yearly

A

Standard Maintenance Schedule (A) (for yearly 8,000-or-less operating hours)

B

Standard Maintenance Schedule (B) (for yearly 4,000-or-less operating hours)

(1)

(2)

(3)

CAUTION

NOTES:

1. MAINTenance can be reset, if the servicing is done earlier than expected and if the remaining operating time to next maintenance

is less than 2,000h in the case of A, 1,000h in the case of B.

2. On the contrary, if the servicing is done after the maintenance notice has appeared, the remaining operating hours to the next main-

tenance has been zero until the maintenance is done. After maintenance and resetting the counter, new counting time starts just

after the maintenance notice message has appeared on the display.

SWITCHED TO LOCAL.

If set to local by remote operation following shut-

down restoration, operation automatically returns

to local when shutdown occurs, and the message is

displayed for 1 minute. For setting details, see

“3.4 How to Use the Digital Monitor.”

(

page 25)

(2) IN OVERRIDE MODE.

This message blinks when the DSP is in an over-

ride mode.

㻝㻹㻻㻰㻱䠖

㻞䠊㻰㼁㻭㻸㻌㼀㻵㻹㻱䠖㻌㻤䠊㻜㼔

㻟䠊㻹㻱㼀㻴㻻㻰䠖

㻠䠊㻿㼃㻵㼀㻯㻴㻻㼂㻱㻾䠖㻜㻝㻡㼟

㻳㻸㻿㻺

㻭㻼㻻㼂㻾㻾㻸

㻝㻹㻻㻰㻱䠖

㻞䠊㻰㼁㻭㻸㻌㼀㻵㻹㻱䠖㻌㻤䠊㻜㼔

㻟䠊㻹㻱㼀㻴㻻㻰䠖

㻠䠊㻿㼃㻵㼀㻯㻴㻻㼂㻱㻾䠖㻜㻝㻡㼟

㻳㻸㻿㻺

㻭㻼㻻㼂㻾㻾㻸

㻝㻹㻻㻰㻱䠖

㻞䠊㻰㼁㻭㻸㻌㼀㻵㻹㻱䠖㻌㻡䠊㻜㼔

㻟䠊㻹㻱㼀㻴㻻㻰䠖

㻠䠊㻿㼃㻵㼀㻯㻴㻻㼂㻱㻾䠖㻜㻝㻡㼟

㻳㻸㻿㻺

㻭㻼㻻㼂㻾㻾㻸

㻝

㻹㻻㻰㻱䠖

㻞䠊㻰㼁㻭㻸㻌㼀㻵㻹㻱䠖㻌㻡䠊㻜㼔

㻟䠊㻹㻱㼀㻴㻻㻰䠖

㻠䠊㻿㼃㻵㼀㻯㻴㻻㼂㻱㻾䠖㻜㻝㻡㼟

㻳㻸㻿㻺

㻭㻼㻻㼂㻾㻾㻸

3.3.4 How to Move within a Menu Display and to Change a Setting

[FUNCTION MENU] and [MAINTenance DATA MENU]

The method and procedure for altering settings is displayed using the following as an example.

Press the MENU button displayed on monitor screen

1 – 2.

Select the number of the item to be set with the

buttons.

Enter with the SET button. The display then switches

to the detail setting screen for that item.

The following explanation uses [2. Operation Mode

Setting Screen] as an example.

㼇㻲㼁㻺㻯㼀㻵㻻㻺㻹㻱㻺㼁㼉

㻝䠊㻮㻭㻿㻵㻯㻌㻿㻱㼀㼁㻼

㻞䠊㻹㼁㻸㼀㻵㻙㼁㻺㻵㼀

㻟䠊㻯㻭㻼㻭㻯㻵㼀㼅㻯㻻㻺㼀㻾㻻㻸

㻠䠊㻿㻯㻴㻱㻰㼁㻸㻱

㻡䠊㻻㻼㻱㻾㻭㼀㻵㻻㻺㻰㻭㼀㻭

㻢䠊㻸㻻㻭㻰㻰㻭㼀㻭

㻣䠊㻭㻸㻭㻾㻹㻴㻵㻿㼀㻻㻾㼅

㻤䠊㻿㻴㼁㼀㻰㻻㼃㻺㻴㻵㻿㼀㻻㻾㼅

㻿㻱㼀䠖㻻㻼㻱㻺㻹㻻㻺䠖㻮㻭㻯㻷

㻝㻹㻻㻰㻱䠖

㻞䠊㻰㼁㻭㻸㻌㼀㻵㻹㻱䠖㻌㻡䠊㻜㼔

㻟䠊㻹㻱㼀㻴㻻㻰䠖

㻠䠊㻿㼃㻵㼀㻯㻴㻻㼂㻱㻾䠖㻜㻝㻡㼟

㻭㻼㻻㼂㻾㻾㻸

㻳㻸㻿㻺

When the display switches to the details screen, move

to the line to be altered with the

but-

tons.

Move to the item to be altered with the button.

Alter the setting value with the buttons.

After altering the setting value, press the SET button.

The cursor moves to the number.

Press the SET button again.

The cursor moves to the first number at the top of the

screen and the setting contents are entered.

When setting is complete, pressing the MONITOR but-

ton once returns the display to the MENU screen, and

pressing it again returns to MONITOR screen 1.

The same procedure is used to alter settings for other

menus.

㼇㻹㼁㻸㼀㻵㻙㼁㻌㻿㻱㼀㼀㻵㻺㻳㼉

㻝

㻹㻻㻰㻱䠖㻳㻸

㻞䠊㻰㼁㻭㻸㻌㼀㻵㻹㻱䠖㻌㻤䠊

㻌㻿㻺

㻜㼔

㻟䠊㻹㻱㼀㻴㻻㻰䠖㻭㻼

㻠䠊㻿㼃㻵㼀㻯㻴㻻㼂㻱㻾䠖㻜㻝㻡㼟

㻡䠊㻮㻭㻯㻷㼁㻼䠖䚷䚷䚷㻣㼜

㻻㼂㻾㻾㻸

㼟㼕

㻢䠊㼁㻺㻸㻻㻭㻰䠖䚷䚷䚷㻟㼜㼟㼕

㻣

㻭㻸㼀䠊㼀㻵㻹㻱䠖㻌㻠㻤㻜㻹㻵㻺

㻤

㻯㻻㻺㼀㻾㻻㻸㻹㻻㻰㻱䠖㻮

㻿㻱㼀䠖㻿㼀㻻㻾㻱㻌㻹㻻㻺䠖㻮㻭㻯㻷

When altering settings of the LCD screen, number update

by button operation is slow. Press the buttons slowly

when altering settings.

IMPORTANT

Items with a dash next to their number cannot be altered

on the LCD monitor. In this case, alter from the digital

monitor while referring to the instructions manual for the

compressor.

IMPORTANT

18

3. OPERATING THE DSP [How to Use the Liquid Crystal Display (LCD)]

How to Move within a [FUNCTION MENU] Display

How to Select or Change a Setting within a Setting Display

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