NTN K-EGA57 User manual

1
こう
Instruction Manual
(With Warranty Card)
Stabilized Voltage
Controller
K-EGA57 (Control capacity 5A)
K-EGA17 (Control capacity 0.3A)
Introduction
Thank you for your purchase of NTN stabilized voltage controller. In order to correctly and safely operate
this controller, be sure to read through this instruction manual before using this device. This instruction manual
with guarantee certificate shall be delivered to end users without fail. In addition, users shall keep this manual
at the safe place where readily available whenever needed even after reading.
1. Before usage
In order for you to use this device correctly and
safely and to make the most of its function, notes
below and on the next page shall be observed.
 On receiving this device, please check if there is
any failure due to the transportation. If you find
any inconvenience such as a failure, do not
hesitate to contact the nearest sales office.
 This controller is only for NTN electromagnetic
parts feeder. Usage in other than this application
or usage exceeding the specification range is
prohibited. It may cause failures.
 The “parts feeder” described in this instruction
manual is the generic names for the bowl feeder,
the linear feeder and so on.
Introduction ･････････････････････････ 1
1. Before Usage ･･･････････････････････ 1
2. Notes on Safety ･･･････････････････2 to 4
3. Function and Features ･････････････････ 5
4. Appearance & Names of Portions ･････････ 6
5. Installation ･･･････････････････････ 7 to 9
6. For the first time use ･･･････････････････ 10
7. Connection of Input/Output･････････ 11 to 17
8. Driving and Adjustment ･･･････････････ 18
9. Measuring method of load voltage 19to20
10. Troubleshooting ･････････････････････ 21
11. Specification････････････････････････ 22
Outside Dimensions ･･･････････････････ 23
Page
Contents
Read the Instruction Manual
to the last before use and operate
the machine correctly.
№PMPC039E-c
POWER SPEED ADJ.
STABILIZED VOLTAGE CONTROLLER
AC100-115/200-230V 50/60Hz JAPAN
ON
OFF
RoHS
5
4
3
2
1
0
6
7
8
9
10

2
2. Notes on Safety
As to the safety, users must have a great responsibility of their own. Be sure to begin any
operation after reading through this operation manual. In addition, in order to use this
controller with safe, be sure to obey the warning and caution labels of this device as well as
to observe the following notes.
Danger
This description shows that not observing this remark and mishandling the device will
cause the death or serious injury of human body with high probability.
Warning
This description shows that not observing this remark and mishandling the device will
cause the death or serious injury of human body.
Caution
This description shows that not observing this remark and mishandling the device may
cause an injury of human body or property damage.
Danger
Please never drive with the panel opened (an emergency case is excluded). Moreover,
please turn off the power supply when you open the panel. It gets an electric shock,
short-circuited, and is likely to ignite.
Please never do the wiring work without cutting off the primary side power supply or the main
breaker.
It gets an electric shock, short-circuited, and is likely to ignite.
This controller is a controller only for the NTN parts feeder (electromagnetic type vibration part
supply machine). It is not possible to use it for other usages such as a piezo-electric type parts
feeders and the single phase motors. It gets short-circuited and is likely to ignite.
Warning
Please ground the earth cables of the controller and the main body without fail. There is a fear of an
electric shock if you do not ground it.
Please never use it in the place with a gas or a liquid that explodes and ignites. It causes a fire.
Please a person other than the repair engineer never performs disassembling, repairing nor
remodeling this device. It may ignite, do abnormal motion to make him/her injured.

3
Warning
It must not be used in a place where it exposes to water, oil or chemicals, or outdoors, or in a
place of high temperature and humidity.
There is a fear of an electric shock, a fire or a failure.
Please do not scratch, pull or forcibly bend the wiring. Moreover, when a heavy thing is put on the wiring,
or it is pinched, the wiring will be damaged. It causes a fire or an electric shock.
Please do not touch controller's output terminal during energizing the controller while even stopping.
There is a fear of an electric shock because the alternating current of maximum 200V is applied to the
output terminal.
Please do not connect AC power to the output terminal (1 and 2).
It causes a fire or the breakdown.
Foreign objects such as paper, waste wood or oil must not be allowed to enter the controller, and the
controller must not ruin its heat radiation by covering it with such as the cloth.
There is a fear of the burn or a fire, etc.
Please do not operate the switch by a wet hand.
There is a fear of an electric shock.
Please do not use it with other than the specified voltage.
It causes a fire or the breakdown.
Please turn off the power supply or the main breaker on the primary side when you replace fuses. There
is a fear of an electric shock.
Caution
The sheet metal of the controller BOX might become high temperature (50-70℃). Please note that
there is a fear of the burn. Moreover, please install a space for heat radiation in the surroundings. (Refer
to P.7)
Please do not do "ON" and "OFF" of the power supply frequently.
The controller will break down.
(Please refer to the paragraph 7.-(4) the wiring of external control input in P.14)

4
Caution
Please do not install it in the place where the vibration or the impact is acting.
The controller breaks down.
Please refer to the note of caution on the margin below when doing the dielectric breakdown test and
megger test (measurement of the insulation resistance by the meggohmmeter).
The controller breaks down when making a mistake.
In the case that external control terminals (S1, S2 and S3) are used, please use the dry relay contact.
They are not insulated from alternate current. Accordingly, if transistors are used, the connected
control unit or controller is damaged and there is a fear of electric shock.
There is a distinction between the ground phase and non-ground phase in the power supply. Please
confirm the earth phase side of the power supply, and connect controller's specified terminal to the
earth phase side. (Refer to 12).
There is a possibility of causing a fire when the wiring is grounded.
Please install the leak breaker or the leak detector on the primary side of power supply of the
controller for the ground fault protection. Especially, please install it surely when it is not possible to
connect it to the ground phase. There is a possibility of causing a fire when the wiring is grounded.
Surely connect the earth clip of the welding machine to the bowl when welding to the bowl. An
incorrect connection of the earth for the welding may burn the earth cable that connects the main
body and the controller, and fears such as electric shock, leaks, and the burn of the controller exist.
Please don’t conduct the welding work without turning off the power supply or the main breaker on the
primary side of the controller.There is a possibility of causing damage of the controller.
Please select and use an appropriate cable according to the voltage used, the current, and the
environment. There is a fear of a leak or a fire when a wrong cable is used.
Please set the DIP switch for setting of power source voltage, frequency and driving system before
driving without fail. If setting is wrong, there is a fear that magnet burns out.
Be sure not to install or drive a damaged controller or a controller which is lack in parts.
There is a fear of an injury.
The noise is generated from the controller or wiring and equipments connected to the controller.
Please take care that neither a peripheral equipment nor the sensor will malfunction. There is a fear of
an accident.
*Note: Please execute the dielectric breakdown test with AC1500V or less between AC line and the earth. The
leakage of current shall be 5mAor less.

5
Terms appearing frequently in this Instruction Manual
1. "Parts feeder" means generic names of such as bowl feeders and linear feeders, and for NTN products only.
2. The one only written as main body indicates “Vibration main body of parts feeder”.
3. Function and Features
(1) Wide input (Applicable to wide range of power source voltage)
Input voltage range is AC100～115/200～230V±10％(Changeover type with DIPswitch). Output voltage is
output, depending on the power source voltage and DIP switch.
(2) Constant voltage function
It curbs the influence of power source voltage fluctuation and keeps the output voltage constant. It is especially
useful when the controller is used at the site where the power source voltage fluctuation is intensive, such as a
site where the electric power condition is bad and a 24 hours continuous operation.
(3) Equipped with external control input terminal
External control input terminal is equipped so as to control ON/OFF of the controller smoothly. Remote control of
drive and stop of the controller is possible using a small relay contact. (Refer to P.14)
(4) Equipped with soft start function
Soft start function is equipped so that vibration at the time of starting up changes smoothly for the case ON/OFF
control was made using the external control input terminal. Depending on application, change of 8 stages from 0
to one second is possible. (Refer to P.17)
(5) Equipped with level switch input terminal (Also applicable to the separately placed hopper)
Level switch input terminal for the separately placed hopper is equipped as a standard. Therefore, it can be also
used as a controller for the separately placed hopper.
(6) Lineup of excusive types for small capacity load
When the vibration main body with small consumption current is controlled, there is such a case that it may not
help but vibrate due to leak current of the controller even if the stop signal is entered. Small capacity load control
type, K-EGA17 is also available so as to control such a vibration main body. It is especially useful for the control of
linear feeder of S05 and S08 types. (Refer to P.22)
(7) Mountable to plain surface
As a separate option part, plain surface mounting leg (K-PZ0465) is available. This is most suitable for cohesion
mounting to mounting surface or mounting to the inside of your control panel. Also, it is possible to fit to the
mounting leg designed by customers. (Refer to P.8)

6
4.Appearance and Names of Portions
(1) Appearance diagram（Please refer to P.23 for dimensions）
(2) Terminal board (view with panel removed)
POWER SPEED ADJ.
STABILIZED VOLTAGE CONTROLLER
AC100-115/200-230V 50/60Hz JAPAN
ON
OFF
RoHS
5
4
3
2
1
0
6
7
8
9
10
Speed control knob
Warning seal
Power switch
Rubber bush
Cable grand
Type name plate ・ Production No. (Ser.№）
Power indication lamp
Panel
Mounting leg
L N 1 2 S1 S2 S3
REMOTEOUTIN ON
OFF
12345678
DIPSW
FUSE1
MAX
VR2
POWER_SW
VR1 SPEED
AC250V
5A
CN1
FG
Fuse
EGA57/5A
EGA17/0.5A
Terminal board
Earth bar
Maximum load voltage control volume
DIP switch
Short circuit bracket

7
5. Installation
(1) Installation place
① Please install it on a firm material such as metals (nonflammable material) having no vibration.
② Please have a space in surroundings without fail so as not to ruin heat radiation and install it vertically.
③ Oils and fats and chemicals, etc. may hurt the resin, painting, and the cable of BOX. These liquid and mist
must not splash directly on the controller.
(2) Surrounding space
It is necessary to leave a space shown in the figure below in the surroundings of the controller for heat
radiation (Unit: mm)
高温部の近く
横向きにする
木材
水平にする
液体がかかる
上下逆さにする
正しい取付け
振動や衝撃のある場所
Placing horizontally
Placing under spillage of liquid
Placing correctly
Placing near hot temperaturePlacing on wood
Placing sidewaysPlacing upside down Placing in environment
with vibration or impact
60
40
30
40*1 *1
POWER SPEED ADJ.
STABILIZED VOLTAGE CONTROLLER
AC100-115/200-230V 50/60Hz JAPAN
ON
OFF
RoHS
5
4
3
2
1
0
6
7
8
9
10
Mounting face
0
*2
＊1 When the mounting leg is removed and the
wiring is made without using rubber bushes
of the side face, it can be shorten to 10mm.
＊2 If the mounting leg is removed, cohesion
mounting of the back surface is possible.

8
(3) Mounting method
①In case of mounting on circular shape base plate
Figure below shows condition that controller is mounted on circular shape base plate and it was a view from the
bottom.
If the mounting leg is stretched to plain, plain surface mounting is possible. In this case, the mounting pitch is
130mm.
②In case of using the plain surface mounting leg, NTN option part
Plain surface (Vertical surface) mounting leg, Option part K-PZ0465
Remove the mounting leg of controller and fix plain
surface mounting leg (K-PZ0465) to the controller with
4 x M4 countersunk screws. Please prepare M4
counter screws with under-head dimension of 8mm or
less by your company.
130±2
Mounting leg
2-M6 bolt
2－Elongate hole 7×8
Parts feeder base
（Circular shape base plate）
Diameter N25：336 ㎜
N40：490 ㎜
Please purchase the plain surface mounting leg
K-PZ0465 separately.
Plain surface mounting leg
(K-PZ0465)
90
10 70
10
130
5
160 170
70
4-R2.5
POWER SPEED ADJ.
STABILIZED VOLTAGE CONTROLLER
AC100-115/200-230V 50/60Hz JAPAN
ON
OFF
RoHS
5
4
3
2
1
0
6
7
8
9
10
55

9
③ In case mounting plate is made by your company
Remove the mounting leg of controller and make
the mounting plate matching to your specification
referring to the left figure.
For the bolts to fix the mounting plate to the
controller, please prepare M4 size bolts with thread
length of 6mm or less excluding the plate thickness
of mounting plate.
Ex.: If thickness of the mounting plate is 2mm, the
under-head length of bolt is 8mm or less.
④In case of fixing to the controller mounting plate of separately placed hopper or space-saving type hopper.
Remove the mounting leg of controller and fix it to the controller mounting plate. For fixing bolts, either use the
same bolts used to fix the mounting leg or prepare by your company.
When you prepare bolts, please use M4 bolts with the under-head length of 8mm or less.
13 32 32
2597
130
90
5-M4 Tapping
Back face of controller
Controller mounting plate
Fix with M4 bolt
Controller mounting plate
Separately placed hopper space-saving type hopper

10
6. For the first time use
When you use the controller first time after the purchase, please make connections of input/output and set the DIP switch
(DIP SW) according to the following procedure. In case that you purchased the pre-set product, works of such as wiring
connection and setting are not necessary. However please check connections and settings without fail beforedriving.
Flow for driving (Refer to relative pages (above arrow) of each time for the details)
1. Connection of input and output
Connect the parts feeder used and
input-output signal cable etc.
5. Leaf spring adjustment
A
djust the leaf springs so as to
make amplitude of parts feede
r
appropriate.
6. Speed (Voltage) adjustment
A
djust voltage with speed
adjustment knob so as to have
appropriate amplitude output.
2. Setting of DIP SW
Set DIP SW to match to the
using conditions.
3. Operation
Input driving signal and star
t
driving.
＜Basic connection＞
・Power source connection→P.12
・Load cable (Parts feeder)→P.13
＜Connection based on using conditions＞
・External control input→P.14～P.15
Refer to P.11 onward
Please adjust leaf springs based on mounted bowl
and shut. Refer to the manual of parts feeder main
body for the detail.
Refer to P.18
A
mplitude (Voltage)
increases by turning the
speed adjustment knob
clockwise.
Refer to P.16 onward
Refer to P.18
・Power source voltage setting SW1
・Frequency setting SW2, SW3
・Driving system setting SW4, SW5
・Soft start setting SW6~SW8
In case that driving signal was input by your company,
start operation.
When operating signal is not available, short circuit the
terminals of S1-S2 and S2-S3.
4. Maximum load voltage adjustment
A
djust maximum load voltage to match
to power source, frequency and
specifications of parts feeder main
body.
Refer to P.19~20
Maximum load voltage is automatically set to just abou
t
maximum load voltage of every main body. But, since
maximum load voltages of some main bodies may be
different from the standard, please check before use
without fail and adjust as needed.
Avoid here
Setting mark
(For the case o
f
pre-adjustment)
5
4
3
2
1
0
6
7
8
9
10
SPEED ADJ.
Refer to this manual