YUKEN KOGYO AMN-G-10 User manual

Reference number Pub.EM-1246
Date 2001. 4. 1
Products Publicity Section
Instruction Manual
Shockless Type Proportional Directional
And Flow Control Amplifier
Model :
AMN–G–10
–––––To use this product correctly and safely:–––––
zBefore using the product, read this instruction manual carefully.
zFollow the instructions and safety precautions mentioned in this instruction manual.
zKeep this instruction manual carefully in a safe and easy accessible place so that the future reference can
be made immediately when necessary.
zThis manual should be incorporated with the manuals for each hydraulic system using this product.
YUKEN KOGYO CO., LTD.

––––––––––– About This Manual –––––––––––
zDrawings in this instruction manual may not necessarily represent the actual products or component
parts. In some cases, an abstract drawing is used to show the products or component parts etc.
zThe contents of this manual are subject to change without notice.
zThis instruction manual has been produced with our best knowledge and attention. However, if you
have a question or find an error or omission, please contact your Yuken sales representative or our
Sales Department.
zIf the instruction manual in your hand has missing or out-of-order pages, contact your Yuken sales
representative or our Sales Department for a replacement.
zAll rights reserved. No part of this document may be reproduced, copied, or modified in any form or
by any means without the permission of YUKEN KOGYO.
–––––––––––––––––––––––––––––––––––––––
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■SAFETY PRECAUTIONS
zThis instruction manual is written for the people who are of ample knowledge and experience in
electric, electronic and hydraulic technologies.
zThe product must be handled directly by or under the guidance of such people as defined above.
zThe instructions and safety precautions (defined below) in this manual must be made known to
the end users of the product.
zWhen you sell or transfer this product, please be sure to provide this instruction manual along
with the product.
In this instruction manual, safety precautions are classified into two ranks: WARNING, and CAUTION.
These words are defined as follows:
WARNING: Indicates a potential hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION: Indicates a potential hazardous situation which, if not avoided, may result in
minor or moderate injury or property-damage.
Note that even precautions labeled "CAUTION" may cause serious harm. Since all precautions are
important regardless of their rank, be sure to follow all of them.
YUKEN KOGYO assumes no liability for any accident causing death, injury, or property damage caused by
the unauthorized use or handling of the product or information contained herein.
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WARNING
Installation
zAlways disconnect the power supply before installing or moving this product or
connecting cables.
Failure to do so may result in electric shock, fire, or death.
zDo not use in conditions of high humidity as this may result in fire or electric
shock.
zAlways attach an earth wire to prevent electric shocks in the event of an electrical
fault.
zNever attach the earth wire to any of the following locations:
•
•
•
•
Gas pipe
Dedicated telephone earth
Lightning rod
Water pipe or faucet
In the event of a fault
zIf smoke is emitted
Continuing to use the product when it is in a faulty condition such as emitting
smoke or an unusual smell may result in fire or electric shock.
Disconnect the power supply immediately, check that the smoke is no longer being
emitted, then call your service agent.
Do not attempt to repair the product yourself as this is dangerous.
zIn the event of physical damage
If the product is dropped or knocked over, disconnect the power supply
immediately and contact your service agent.
Continuing to use the product may result in fire or electric shock.
zIn the event of water entering the equipment
If moisture gets inside the product, disconnect the power supply immediately and
contact your service agent.
Continuing to use the product may result in fire or electric shock.
Prohibitions
zModification of the product is prohibited
Do not modify the product.
Modification may cause fire, electric shock, or injury.
zDisassembly of the product is prohibited
Do not disassemble the product.
Disassembly may damage the equipment or result in electric shock.
zUse in a wet environment is prohibited
Do not allow water to enter the unit or use the product where it can become wet.
Water may damage the equipment or cause fire or electric shock.
- 4 -

WARNING
Power supply
zUse of power supply other than as stipulated is prohibited
Always use a 24VDC power supply.
Using a different power supply may result in fire or electric shock.
Other
zPrevent foreign material entering unit
Do not place screws, wire offcuts or other small metallic parts on the unit.
If such material gets inside the unit it may cause fire or electric shock.
CAUTION
Installation location
zDo not locate near a flame
Do not place the product or its associated cabling near heaters or other
heat-emitting equipment.
Locating near a flame may cause damage such as deterioration of the cable
insulation or melting the terminals, resulting in fire or electric shock.
zDo not locate in areas where the product may be subject to high
temperature
Do not locate the product or cables in areas of high temperature or in areas
receiving direct sunlight.
Locating the unit in such areas may result in a rise in the internal temperature of
the unit leading to fire or fault.
zDo not locate in areas where the product may be subject to oil splash or
steam
Do not locate the product in dusty environments or in locations where hydraulic
fluid or steam may be released.
Locating the unit in such positions may cause fire, electric shock, or fault.
zDo not locate in an unstable position
Do not locate the product in an unstable position such as at an angle or on an
unstable base. Instead, attach to a secure position in a control panel.
Similarly, do not place heavy objects on top of the product.
This may result in the object falling and causing injury.
Prohibitions
zDo not stand, sit or lean on the unit.
This may result in a fall causing damage or injury.
zDo not touch
Do not touch the terminals while the unit is in use.
This may cause a short circuit or other problem resulting in damage or
misoperation.
zDo not hit
Do not hit the product.
This may damage the product.
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Contents
Introduction 7
1. Summary 7
1.1 Product Model Number 7
1.2 Specifications 7
1.3 External Dimensions and Location of
Control Buttons 8
2. Power Amplifier Cabling 9
2.1 Cabling Diagram 9
2.2 Cabling Precautions 10
3. Setup 11
3.1 Functions of Each Button 11
3.2 Mode Settings 12
3.3 Output Data Settings 16
4. Operation 18
4.1 Sequence Input Signals 18
4.2 Control Flow Rate and Settings 19
5. Storage of the Power Amplifier 20
6. Disposal 20
7. Service Information 20
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Introduction
The primary purpose of this manual is to explain the on-site operation and maintenance of the unit.
Please read the manual carefully to ensure that you operate the unit correctly.
Initial Checks
When you first receive the unit, please check the following items.
If you find any problem, please contact the sales agent or your nearest Yuken sales office.
zIs the model number correct?
Check the model number shown on the panel.
zDoes the unit have any faults such as loose screws or damage.
1. Summary
1.1 Product Model Number
AMN–G–10
Function type
Design number
Series number
G: Shockless type proportional directional and flow control
1.2 Specifications
Model Number
Item AMN–G–10
Maximum output current 1.3 A
Slope modes Slope constant or time constant selectable
Maximum slope time 1 to 99 seconds (Can be set in 1 second increments)
Setting resolution 1 % for both level and slope
Control modes Dedicated code input or G valve type selectable
Control input signal Photocoupler-isolated (Input current limit resistor = 3.3 kΩ)
Power supply voltage DC 24 V (with 20 to 30 V ripple)
Power consumption 35 W
Ambient temperature for operation 0 to 50 °C
Ambient humidity for operation 90 % RH or less (no condensation)
Weight 0.2 kg
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1.3 External Dimensions and Location of Control Buttons
Terminal block
(Power supply, sequence input)
Data setting buttons
Data display
Point display
Terminal block (solenoid output)
Item display
- 8 -

2. Power Amplifier Cabling
WARNING
Always disconnect the main power supply before installing, moving or connecting cables to the
power amplifier. Failure to do so may result in electric shock or fire, or misoperation or damage
to the amplifier.
Always use the specified power supply voltage for this product. Using an incorrect power supply
may cause fire or electric shock.
CAUTION
Always install the power amplifier in a stable location such as in an operation control panel.
Take particular note of ventilation, dust, and vibration. Similarly, do not install in a location
subject to high temperature or humidity. Installing in such a location may result in misoperation
or damage to the amplifier.
The permitted variation in the power supply voltage to the power amplifier is 20 to 30V. Surge
voltages outside this range may cause misoperation of the amplifier.
To deal with this possibility, provide some form of electrical noise protection such as fitting a
noise filter on the power supply.
2.1 Cabling Diagram
SEL2
SEL1
SOLb
SOLa
Input signals (Photocoupler input)
Input current limiting resistor: 3.3 [kΩ]
Recommended input current: 7 [mA]
Input current range: 5 to 15 [mA]
Recommended signal
power supply: 24V
Sequence controller
EDFG-01
Shockless type proportional
directional and flow control valve
The maximum power consumption of the power
amp is 35W.
DC power supply
DC 24 V
0 V
SOLbSOLa
- 9 -

2.2 Cabling Precautions
2.2.1 Connecting Cables to the Screwless Terminal Block
Range of cables that can be used:
Single-core φ 0.4 (AWG26) to φ 1.2 (AWG16)
Twisted-core 0.3 mm2(AWG22) to 1.25 mm2(AWG16) Wire diameter
φ 0.8 or more
Standard length of wire to strip:
11 mm
or
Completely coat in solderSolder here
Points to note when connecting wires
1. When using twisted-core wires, use solder to prevent the end of the wire from splaying
and thereby reducing the strength of the connection.
2. Only connect one wire to each terminal hole.
2.2.2 Power Supply Selection
The maximum power consumption of the power amplifier is 35W.
2.2.3 Sequence Input Signals
Input signals (Photocoupler input)
Input current limiting resistor: 3.3 [kΩ]
Recommended input current: 7 [mA]
Input current range: 5 to 15 [mA]
3.3kΩ
The photocouplers are the AC input type.
Signal common (C) terminal no. 4 can be used to connect either the + common or – common line.
- 10 -

3. Setup
Always turn on the power to the power amplifier before turning on the power to hydraulic
equipment and machinery. Failure to turn the power on in this sequence may cause the
equipment to misoperate.
3.1 Functions of Each Button
1) ITEM change key (Switches between monitor, data set, and control parameter set modes)
Used to change the display mode and select the setting item.
Pressing the key twice in succession switches between data set mode and monitor mode.
Pressing the key for 3 seconds or more in monitor mode changes to control parameter setting
mode.
2) Setting item select/Data set key
Pressing these keys while holding down the ITEM key changes the setting item.
Using these keys on their own modifies the contents of the selected item.
Changes to the data are automatically saved in memory but this takes approximately 3 seconds.
Do not turn off the power within 3 seconds after changing the data.
CAUTION
▲ ▼
ITEM
WARNING
- 11 -

3.2 Mode Settings
Pressing the ITEM key for 3 seconds or more in monitor mode changes to control parameter setting
mode.
Use the ITEM + [▲]and [▼]keys to select the item and use the [▲]and [▼]keys to change the
contents of the selected item.
1) SOLa output MAX setting
Sets the maximum output current for SOLa.
Maximum output current = [Current limit] ×[SOLa output MAX] [A]
[Current limit]: Value set in item 7) below.
Set this value so as to obtain the target maximum cylinder speed (flow rate).
(See section 4.2)
2) SOLa output MIN setting
Sets the SOLa offset current.
Offset current = [Current limit] ×[SOLa output MIN] [A]
[Current limit]: Value set in item 7) below.
Set this current value at which the cylinder starts to move for a 1% level
setting.
(See section 4.2)
3) SOLb output MAX setting
Sets the maximum output current for SOLb.
Maximum output current = [Current limit] ×[SOLb output MAX] [A]
[Current limit]: Value set in item 7) below.
Set this value so as to obtain the target maximum cylinder speed (flow rate).
(See section 4.2)
4) SOLb output MIN setting
Sets the SOLb offset current.
Offset current = [Current limit] ×[SOLb output MIN] [A]
[Current limit]: Value set in item 7) below.
Set this current value at which the cylinder starts to move for a 1% level
setting.
(See section 4.2)
5) MAX slope time setting
Sets the maximum slope time.
Setting range: 1 to 99 seconds
(Preset in factory: 5 seconds)
(See section 3.3)
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6) Slope waveform selection
If you wish to avoid any shock to the device on which you are performing
hydraulic control, selecting an S shaped curve for the slope waveform
smoothes any shock when movement starts or stops.
Setting: 0 to 9 (10 types)
(Preset in factory: Type 0)
Slope waveform types
The figures in brackets ( ) indicate the points at which the waveform curves.
Type 0 (0, 100)
Type 1 (15, 85)
Type 2 (25, 75)
Type 3 (35, 65)
Type 4 (50, 50)
Type 5 (40, 40)
Type 6 (30,30)
Type 7 (20, 20)
Type 8 (10, 10)
Type 9 (0, 0)
- 13 -

7) Current limit setting
Sets the current limit value.
Setting range: 0.0 to 2.0 [A]
(Preset in factory: 1.1 [A])
Set 1.1 [A] if driving the EDFG valve.
(See section 4.2)
8) Dither frequency setting
Sets the dither frequency.
Setting range: 0 to 9 (100 to 190 [Hz])
(Preset in factory: 2 (120 [Hz]))
Dither frequency = (Dither setting) ×10 + 100 [Hz]
Set 120 [Hz] if driving the EDFG valve.
9) Sequence input delay time setting
If a relay or mechanical switch is used as the input device, the input signal
may be unstable due to chattering of the switch contacts during switching.
To prevent misoperation of the controller caused by this chattering, the
input signal is held for the specified time.
Setting range: 0 to 9 (0 to 90 [ms])
(Preset in factory: 2 (20 [ms]))
10) Slope selection
Selects slope constant or time constant for slope output.
U.0 : Slope constant (Preset in factory)
U.1 : Time constant
Slope constant : Maintains a slope constant regardless of the magnitude of
the slope level (voltage). (The duration becomes variable.)
Use this setting if you wish to keep the acceleration shock
constant.
Time constant : Keeps the duration constant regardless of the magnitude of
the slope level (voltage). (The slope becomes variable.)
This setting is used when the time required for acceleration
or deceleration is determined constant.
11) Hysteresis compensation
This compensates an error (hysteresis) arisen at the time of increasing and
decreasing signal for the same flow rate setting.
Setting range: 0 to 9 [%]
(Preset in factory: 2 [%])
Set 2 [%] if driving the EDFG valve.
- 14 -

12) Control mode selection
Selects the control mode.
P.0 : Shockless control mode (Preset in factory)
P.1 : G valve control mode
1) Shockless control mode:
This mode outputs a L→H→L shockless pattern.
Output
Input Signal
2) G valve control mode:
This control mode is equivalent to that for shifting time adjustable type shockless valve.
Output
Input Signal
zIf no HALT (SEL1) signal is input at point 3, the output automatically turns OFF after 60
seconds.
zIf not using the HALT function, set the level setting of point 3 to zero.
The slope in decreasing the signal from the high speed (point 2) becomes that in the point
3 slope setting.
zThe point 1 setting becomes ineffective in this mode.
- 15 -

3.3 Output Data Settings
1) Data setting procedure
Press the ITEM key twice in succession to select data set mode.
(The mode changes alternately at each key press)
Use the ITEM + [▲]and [▼]keys to select the item or point to set.
Operation switches between the level and slope settings for each
point.
Use the [▲]and [▼]keys to set the data.
Finished data setting?
Press the ITEM key twice in succession to select monitor mode.
ITEM
▲ ▼
ITEM
▲ ▼
ITEM
+
YES
NO
CAUTION
Changes to the data are automatically saved in memory but this takes approximately 3 seconds.
Do not turn off the power within 3 seconds after changing the data.
2) Level settings
The output current is determined by the following formula:
SOLa output current = [Current limit] × (([SOLaMAX] – [SOLaMIN]) × [LEVEL setting] + [SOLaMIN])
SOLb output current = [Current limit]
× (([SOLbMAX] – [SOLbMIN]) × [LEVEL setting] +
[SOLbMIN])
Level setting display
When setting the level, the LEVEL and corresponding point indicating lamps turn on.
Level selection
Point
Level setting value
CAUTION
All the point indicating lamps turn off for the OFF level setting.
The OFF level is fixed at 0% and cannot be modified.
- 16 -

3) Slope time setting
The following describes the procedure for setting the slope time in switching the current output
to the next output.
zWhen slope constant selected:
SLOPE = [MAX slope time]×[SLOPE setting]×([Target LEVEL] – [Current LEVEL])
zWhen time constant selected:
SLOPE = [MAX slope time]×[SLOPE setting]
Slope setting display
When setting the slope, the SLOPE and corresponding point indicating lamps turn on.
Slope selection
Point
Slope setting value
CAUTION
All the point indicating lamps turn off for the OFF slope setting.
- 17 -

4. Operation
4.1 Sequence Input Signals
1) Shockless control mode
The input to the power amplifier is a special 4-bit code input from the terminal block
(terminals 5 to 8).
Input Signal vs. Output
Output SOLa
Terminal 5
SOLb
Terminal 6
SEL1
Terminal 7
SEL2
Terminal 8
SOLa low speed 1 ON OFF ON OFF
SOLa high speed ON OFF ON ON
SOLa low speed 2 ON OFF OFF ON
SOLb low speed 1 OFF ON ON OFF
SOLb high speed OFF ON ON ON
SOLb low speed 2 OFF ON ON ON
2) G valve control mode
The power amplifier accepts a signal input from the terminal block (terminals 5 to 7).
Input Signal vs. Output
Output SOLa
Terminal 5
SOLb
Terminal 6
SEL1
Terminal 7
SOLa high speed ON OFF OFF
SOLa low speed 2 ON→OFF OFF OFF
SOLa OFF OFF OFF ON
SOLb high speed OFF ON OFF
SOLb low speed 2 OFF ON→OFF OFF
SOLb OFF OFF OFF ON
SEL1: HALT function signal
Monitor display
In case of selecting an optional terminal from the input signal terminals and turning it ON when
the display panel shows monitor mode, the specified point number and the output current are
displayed in real time.
Point
Output current (Units: [A])
- 18 -

4.2 Control Flow Rate and Settings
1) Shockless type proportional directional and flow control valve
Model : EDFG-01-30-3C2-XY-50
2) Current-flow characteristics and settings
SOLb energized
PBAT flow
SOLa energized
PABT flow
SOLb output MIN
SOLb output MAX
SOLa output MIN
Level setting
range
Current limi
t
Current limi
t
Flow [l/MIN]
100 0
[%]
100 0
[%]
Level setting
range
SOLa output MAX
40
30
20
10
0 1.5 1.5
Output Current [A]
0
0.5 0.5 1.0
1.0
Valve differential pressure: 7MPa
(1) Current limit : Set 1.1 [A] for the EDFG.
(2) Output MAX : Set at the target maximum flow.
Example : For 20 [l] the current is 0.85 [A]
Output MAX = 0.85
1.1 ×100 = 77 [%]
(3) Output MIN : Set the current at which the oil starts to flow.
Example : Current at which the oil starts to flow is 0.22 [A]
Output MIN = 0.22
1.1 ×100 = 20 [%]
(4) Level setting : Set as a proportion of the range between output MAX and MIN (divided
into 100 increments).
Example : Set a flow rate based on the range from 0 to 20 [l] (0.22 to
0.85 [A]) corresponding to 0 to 100%.
- 19 -

- 20 -
5. Storage of the Power Amplifier
If keeping an unused power amplifier as a spare part or similar, store in a location intended for use as
a store and maintain appropriately.
To prevent rust and corrosion, do not store in the following locations:
zLocations subject to high temperature, high humidity, or freezing
zLocations where the unit may be exposed to the weather.
zClose to organic solvents, acids, alkalis, or other chemicals or where the unit may be exposed to
vaporized gas.
zLocations with extreme variations in temperature or where there is a risk of condensation.
6. Disposal
This power amplifier can be disposed of as general industrial waste.
7. Service Information
If you have any requests relating to YUKEN products or require service, contact the dealer from
whom you purchased the product, your local YUKEN sales representative, or the department listed
below.
zYUKEN KOGYO CO., LTD.
International Business Department (Tokyo office):
Hamamatsucho Seiwa Bldg., 4-8, Shiba-Daimon
1-chome, Minato-ku, Tokyo, 105-0012, Japan
Tel: [phone]
Fax: [phone]
URL: http://www.yuken.co.jp
zRevision history
Shockless Proportional/Directional Flow Control Amplifier: Instruction Manual
April, 2001 First edition
zPublished by
Yuken Kogyo Co., Ltd.
Products Publicity Section