CHUCK CONTROLLERS
Need of a chuck controller〈EH-V305A〉
ＥＬＥＣＴＲＯ ＣＨＵＣＫ−ＭＡＳＴＥＲ

４ ５ ６

１０

４ ５ ６

９

７
８

１

９

０

１０

ＭＡＧ

ＤＥＭ

ＡＵＸ

ＯＦＦ

175

０

ＶＯＬＴ ＡＤＪ．

２

ＤＥＭ ＡＤＪ．
ＫＡＮＥＴＥＣ ＣＯ．，
ＬＴＤ ＪＡＰＡＮ

ＣＡＵＴＩＯＮ ； 注意−−−−−−−−−−−−−−−

EH-VE305A

View Z80（１８）Wiring grommet(3 places)

（７３）

30

ＣＡＵＴＩＯＮ ； 注意−−−−−−−−−−−−−−−

View Z
Connector for remote
operation box (D-SUB 25P)

80
110

125
110
80

Z

140

72
60

ＥＬＥＣＴＲＯ ＣＨＵＣＫ−ＭＡＳＴＥＲ
ＰＯＷＥＲ
ＡＬＡＲＭ
ＣＵＲＲＥＮＴ ＶＯＬＴＡＧＥ

190
180
165

３

４ ５ ６

１

０

１０

９

ＶＯＬＴ ＡＤＪ．
３
１

ＬＯＡＤ

７
８

２

４ ５ ６

７
８

２
０

１０

ＭＡＧ

ＤＥＭ

ＡＵＸ

ＯＦＦ

９

ＤＥＭ ＡＤＪ．
ＫＡＮＥＴＥＣ ＣＯ．，
ＬＴＤ ＪＡＰＡＮ

［mm
（in）
］
57.6

55

5

Shielded wire (20 core wires)
D-SUB connector (Coupling)
２−Ｍ２．
６(Setscrew)〈Dimensions of remote
operation box〉

100

80

Precaution for use Model ES-M103B is a low-cost, readily available type and therefore lacks some functions described above.
Model

Power Source

ES-M103B

Single-phase 100 VAC / 50/60 Hz

ES-M305B

Single-phase 100/200 VAC 50／60Hz※¹

Voltage

Current

90 VDC

3A
5A

Dimensions
HeightWidth145（5.70）

210（8.26）

Depth
100
（3.93）

Mounting Hole Pitch
Width
Height80（3.15）［mm（in）］Mounting Hole150（5.90） 4−φ4.5（φ0.17）

Mass
2.3kg/ 5.1 lb
2.5kg/ 5.5 lb※1…Switch selection ※If the magnetic force needs to be adjusted, select Model EH.

MAGNETICTOOLS［Application］
A stand type mounting base that can be used for any types ofsmall Chuck Masters such as ES-M305B and EH-V305A.
［Features］●Self-standing and easy installation.
●The mounting plate at the top rotates 360 degrees to enableadjustment after installation.
●A rectiﬁer can also be mounted.
［mm
（in）
］
Model
EST-1

Dimensions

Mass

Mounting plate
5°）

2-M4
(Setscrew)

8×M6

600

Applicable Models

600×600×（1000）
EH-V305A、ES-M305B/M103B
9.5kg/21 lb（23.6）×（23.6）×（39.4）
EPS-215B、RH-M102C（40

MAGNETICHOLDERS

Model EST-1 ELECTRO CHUCK MASTER* STAND

15

MEASURING
TOOL HOLDERS

Output□HOLDING
TOOLS

ES-M305B

210

145

150

BLOCKS, HOLDERS,MINI CHUCKS［Application］
Rectiﬁes an input from an AC power source to DC and outputs it to the electromagnetic
chuck. To eliminate the residual holding power of the electromagnetic chuck, the rapid
automatic demagnetization function is activated.
［Features］●An interlock circuit is incorporated.
●Demagnetization is completed quickly by simply pressing the switch. The program has been
designed to give a consistent demagnetizing eﬀect within a short time.
●Model ES-M305B can be used on both input voltages of 100 VAC and 200 VAC.
●The noise resistance feature ensures consistent performance in certain noisy environment.
4-φ●The DC output voltage is constant.
●The fundamental functions required to control electromagnetic chucks are incorporated neatly.

600

SINE BARCHUCKS

Model ES-M ELECTRO CHUCK MASTER*

100

PROMELTA*SYSTEM

Model
Power Source
OutputWidth
Height
Depth
Mass
EH-V305A
4kg/ 8.8 lb
Single phase 100ー220 VAC
0̶90 VDC 5A 170（6.69） 260（10.2）（50／60Hz）
EH-VE305A
175（6.89） 4kg/ 8.8 lb（main unit）+ 1kg/ 2.2 lb（operation box）
EH-VE210D Single phase 200 VAC（50／60Hz） 0̶90 VDC 10A 282（11.1） 290（11.4）
6kg/ 13 lb（main unit）+ 1kg/ 2.2 lb（operation box）
※Switch selection (Prior to use, be sure to check the position of the switch.) ※If the magnetic force needs not be adjusted, select Model ES-M.

Z

VACUUM
CHUCKS●Developed as a non-contact type Chuck Master capable of outputting a constant voltage in a wide range of 100
VAC to 220 VAC and providing high speed consistent demagnetizing eﬀect. Also various protective functions
have been incorporated and indicator lamps for individual alarms are provided to identify alarms easily.
●Because a relay (consumable part) is not used, this model can be used continuously and withstand frequent ON/OFF operations.
●The holding power of the electromagnetic chuck can be controlled by adjusting the voltage.
●The rapid automatic demagnetization function is activated to reduce the residual holding power of theelectromagnetic chuck.
●Many input/output signals are employed that can be utilized by connecting them to the pin terminal typeterminal block in the case.
●Model EH-VE is a derived type of Model EH-V305A (operation unit incorporated) to which a remote operation
box is attached for remote operation. For 10A operation, select model EH-VE210D.

260

230
250

［Features］

ＥＬＥＣＴＲＯ ＣＨＵＣＫ−ＭＡＳＴＥＲ

175

150

Rectiﬁes an input from an AC power source to DC and outputs it to the electromagnetic chuck.

Cooling ﬁn140Z［Application］〈EH-VE305A〉

5

110

EH-V305A

138

30<Remote operation box>

138

１

ＬＯＡＤ

８

２

３

Blank cap
Wiringgrommet(3 places)

７

230
250
260

150

Cooling ﬁn

ＰＯＷＥＲ
ＡＬＡＲＭ
ＣＵＲＲＥＮＴ ＶＯＬＴＡＧＥ

３Remote operation type

（１８）

5

（1000）（900）

BLOCKS
FOR MC

17●Rectiﬁer: Rectiﬁes an input from an alternating current (AC) power source to direct current(DC) and supplies it to the electromagnetic chuck.
●Demagnetizer: Once a workpiece has been attracted to the electromagnetic chuck, it cannot be
demounted easily due to its residual holding power even when the power is turned off. The
demagnetizer is used to attenuate the DC power from the rectiﬁer and eliminate the residual magnetism.

Model EH-V NON-CONTACT TYPE CHUCK MASTER*（７３）

ELECTROMAGNETIC CHUCKPERMANENTPERMANENTCHUCKSCONTROLLERS MAGNETIC CHUCKS ELECTROMAGNETIC CHUCKS

Direct current (DC) is required to generate a magnetic force in the electromagnetic chuck. Also
when demounting a workpiece after machining, electrical demagnetization is required to reduce
the residual holding power. For this purpose, an Electro Chuck Master or a chuck controller
consisting of a rectifier and demagnetizer (Chuck Master dedicated to demagnetization andselector switch) is required.

EST-1

View Z

EH-V / ES-M / EST-1 / ES-V / KR / ESR / S-2A

ES-V220A

Single-phase
200 VAC,50/60Hz

ES-V230A

OutputVoltage
Current

Mounting Hole Pitch
Width
HeightDepth

Mountig
Hole

Mass

60kg/133 lb
596（23.4） 4−φ10250
400650（25.5） 600（23.6） （9.84） （15.7） 646（25.4） （φ0.39） 80kg/177 lb

20A

0̶90 VDC

Dimensions
HeightWidth

600（23.6） 550（21.6）

30A

Width

Remote Operation Box
HeightDepth

100（3.93）

155（6.10）

Cord70（2.75）

5m（196.8）

Model KR RECTIFIER FOR ELECTROMAGNETIC CHUCK
W

H

D

ON

KR-N103A

D

V

H

3A

t!
ery compac

W

KR-T203A■Model KR-N

■Model KR-T

［Application］［Application］
These rectiﬁers rectify an input from an AC power source to direct current and output it to These rectiﬁers rectify an input from an AC power source
electromagnetic chucks via a demagnetizer. They can also be used as a source to supply DC to direct current and output it to electromagnetic chucks
to electromagnetic holders.
via a demagnetizer. The output voltage can be varied to［Features］
control the holding power of electromagnetic chucks.
●The very compact size (volume reduced by 50% from our conventional models) saves ［Features］●Both 100 VAC and 200 VAC can be used.
installation space and can be installed in a control panel, too.
●An output voltmeter is provided.
●Since this is connected to a magnet on the backside, connection time can be reduced substantially.
●External control terminals are provided as standard features for automatic operation by ●The output can be varied in a wide range to provide ameans of external contacts, etc.
wide range of adjustment of the holding power.
●Power cable (2 m) and plug included.
●Power cable (2 m) included.
［mm
（in）
］
Model

OutputPower Source

KR-N101A

Voltage

Single-phase 100 VAC,50/60Hz

KR-N103A
KR-T203A

Width

1A

90 VDC

Single-phase 100/200 VAC,50/60Hz

KR-T205

Current

Dimensions
Height

Depth

Mass

100（3.93）

77（3.03）

106（4.17）

1.0kg/2.2 lb

10̶120 VDC

3A

280（11.0）

140（5.51）

184（7.24）

8.5kg/ 18 lb

0̶120 VDC

5A

400
（15.7）

170（6.69）

290（11.4）

14.0kg/ 31 lb

3A※The output voltage of Model KR-T is stable when above 30 V.

［mm
（in）
］

Model

Electrical Rating
Input
OutputWidth

ESR-N102

100 VAC,50/60Hz

90 VDC-2A

ESR-5A

Max. 120 VDC-4A

Max. 120 VDC-4A

Dimensions
HeightDepth

Mounting Hole Pitch Mounting
Hole
Width
Height205（8.07） 85（3.34）

90
110（4.33）
190（7.48） 84（3.30） （3.54）

Mass

BLOCKS, HOLDERS,MINI CHUCKS

150［Application］
Model ESR-N102 rectiﬁes an input from an AC power source to DC and outputs
it to electromagnetic chucks. For demagnetization, the attenuating alternating
output is operated manually. A rectiﬁer is built in.
Model ESR-5A relays DC output to electromagnetic chucks and fordemagnetization, the attenuating alternating output is operated manually. A
rectiﬁer needs to be installed in the preceding stage.
［Features］●Turning the dial repeats reversal of the circuit and changing over of resistancevalues for easy demagnetization.
●Thanks to the manual type, this can be applied to diversiﬁed workpieces by
ESR-N102
simply turning the dial.

H

Model ESR CHUCK MASTER* DEDICATED TO DEMAGNETIZATION

4-φ6.5

D

90

W

Mounting
hole

Chuck MasterAC power
source〈Connectionof ESR-5A〉
Electromagnetic
chuck

150
4−φ6.5 1.8kg/3.9 lb（5.90） （φ0.25） 1.7kg/3.7 lb

Rectiﬁer

MAGNETICHOLDERS

Model S-2A SELECTOR SWITCH FOR DEMAGNETIZATION

-N
O+

152

O FF

〈Wiring of selector switch〉

O

140［Application］
A switch to relay DC output from the rectiﬁer to electromagnetic chucks andis operated manually to select the output for demagnetization.
［Features］●Easy installation and light weight. Simple and robust construction.

S-2A

N

Electromagnetic chuck

Model
S-2A

Electrical Rating
Voltage
Current
Max. 120 VDC

2A

Width

Dimensions
HeightDepth

SelectorswitchMounting Hole Pitch
Width
HeightModel KR（in）］
rectifier ［mmMounting Hole

Mass

60
（2.36） 121（4.76） 152（5.98） 40（1.57） 140（5.51） 4−φ5
（φ0.19） 0.4kg/0.8 lb

BLOCKS
FOR MCPower Source

VACUUM
CHUCKSModel

PROMELTA*SYSTEM

ES-V220A

SINE BARCHUCKS

H

Remoteoperation box［Application］
An input from an AC power source is rectiﬁed to DC, which is output to electromagnetic chucks. The
output voltage can be varied to control the holding power of electromagnetic chucks. The automatic
demagnetization function is activated to reduce the residual magnetism of the electromagnetic chucks.
［Features］●Suitable for large sized electromagnetic chucks and connecting type electromagnetic
chucks that require a relatively large electric capacity.
●The low voltage range for variable output is very stable.
［mm
（in）
］

HOLDING
TOOLS

Chuck

Power
sourceD

MEASURING
TOOL HOLDERS

W

40

50

60

121

24 3

4-φ5
Mounting
hole

MAGNETICTOOLS〈Connection of Model ES-V〉

PERMANENTPERMANENTCHUCKELECTROMAGNETIC
ELECTROMAGNETIC CHUCKS MAGNETIC CHUCKS CONTROLLERS CHUCKS

Model ES-V ELECTRO CHUCK MASTER*

18

CHUCK CONTROLLERSELECTROMAGNETIC CHUCKPERMANENTPERMANENTCHUCKSCONTROLLERS MAGNETIC CHUCKS ELECTROMAGNETIC CHUCKS

Selection Guide■Selecting an Electro Chuck Master
KANETEC s Electro Chuck Master consists of a rectiﬁer and electronically controlled demagnetization circuit. Residual magnetism varies largely
depending on workpieces (material, shape, mass, etc.). It is therefore necessary to set the demagnetizing time (few seconds to over ten seconds)
suitable for particular workpieces. The most effective demagnetizing patterns for each set time have been programmed in the computer to start
automatic demagnetization by button operation. After studying whether the output required for magnetization may be constant or must be variable,
select a model suitable for the rating of the electromagnetic chuck.

■Selecting a rectiﬁer■Connection diagram① Select a suitable rectiﬁer for installation in combination with a separate
demagnetizer. (Connection diagram 2) Be sure to observe the following
conditions: Voltage of electromagnetic chuck ≧ output voltage of rectiﬁer
Current of electromagnetic chuck ＜ output current of rectiﬁer<Example> Electromagnetic chuck 90 VDC, 0.8 A
Output of rectiﬁer
90 VDC, 1 A② When selecting a Chuck Master or rectifier dedicated todemagnetization having an output voltage exceeding the rated voltage(90 V) of the electromagnetic chuck, special attention must be paid tothe selection of the current capacity.

BLOCKS
FOR MCVACUUM
CHUCKS〈Example〉Electromagnetic chuck 90 VDC, 4.5 A
Rectiﬁer output 0 to 120 V
With the above combination, the maximum current of the rectiﬁer is:
120V
4.5A×
＝6A, thus a rectiﬁer having output capacity 5A cannot be used.
90V③ Other considerations should include fluctuation of the voltage in theoperation area. Select an output capacity with suﬃcient allowance.

Chuck

Operation box

Diagram 2 Power source→

Rectiﬁer

Diagram 3 Power source→ElectroChuck master

Demagnetizer
Chuck Master or selector
switch dedicated todemagnetization

Chuck

Chuck

■Selecting a demagnetizer
The use of a demagnetizer requires a rectiﬁer. Select a rectiﬁer, referring
to Selecting a rectiﬁer.
The demagnetizer cannot be used together with the Electro Chuck
Master.
The manual demagnetization types, Model S-2A and ESR-5A, cannot be
connected to equipment other than a rectiﬁer.

■Selection based on electric capacity <Model selection>

PROMELTA*SYSTEM

Name

Model
EH-V305A
EH-VE305A

DC Output

Power Source

Voltage

SINE BARCHUCKSElectroES-V220A

Chuck Master0‒90 VDC
Single-phase 200 VAC
50/60 HzBLOCKS, HOLDERS,MINI CHUCKSHOLDING
TOOLS

ES-M103B
ES-M305B

Single-phase 100/200 VAC
50/60 Hz

Chuck Masterdedicated todemagnetization

ESR-N102

Single-phase 100 VAC
50/60 Hz

ESR-5A

Max. 120 VDC
50/60 Hz

Selector switch

S-2A

Max. 120 VDC
50/60 Hz

KR-N101A

Single-phase 100 VAC
50/60 Hz

KR-N103A

Single-phase 100 VAC
50/60 Hz

KR-T205

Rectiﬁer

Demagnetizer

Chuck Rating
VoltageMax. Current※

10A

9.0A

20A

18.0A

Auto

Not required

4.5A
90 VDC2A
Manual10‒120 VDC

MEASURING
TOOL HOLDERS

0‒120 VDC

3A

3.2A
1.6A
S-2A

̶̶

3

1.8A

KR-N,KR-T

2A
1A

90 VDC

Single-phase 100/200 VAC
50/60 Hz

4A

1

2.7A

5A

Max.120 VDC

3

27.0A
Not required

3A
90 VDC

Connection
Diagram

4.5A

30A

ES-V230A

KR-T203A

Demag.
Control

5A

Single-phase 100 VAC
50/60 Hz

Rectiﬁer

Current

Single-phase
100 VAC‒220 VAC
50/60 Hz

EH-VE210D

MAGNETICHOLDERSMAGNETIC
TOOLS19

ElectroChuck master

Diagram 1 Power source→

0.9A

2

2.7A

̶̶

ESR-5A

2.4A

5A

4.0A

※The max. current of the applicable chuck must be the Chuck Masterʼs rated current × 0.9 or less. However, for the output voltage 120V, the max. current must be rated current × 0.8 or less.

■Selection based on function <Model selection>
Name

Electro Chuck Master

Chuck Master dedicated todemagnetization

Rectiﬁer
Selector switch

Model

Function

DC Output

Rectiﬁer circuit

Demag. circuit

ES-V

◯

ES-M

◯

EH-V,VE

Demag. Control

Chuck Rated
Current

Variable

Invariable

Auto

Manual

◯

◯

̶̶

◯

̶̶

＜DC27.0A

◯

̶̶

◯

◯

̶̶

＜DC 4.5A

◯

◯

◯

̶̶

◯

̶̶

＜DC

ESR-N102

◯

◯

̶̶

◯

̶̶

◯

＜DC 1.8A

ESR-5A

̶̶

◯

̶̶

̶̶

̶̶

◯

＜DC 3.2A

KR-N

◯

̶̶

̶̶

◯

̶̶

̶̶

＜DC 2.7A

KR-T

◯

̶̶

◯

̶̶

̶̶

̶̶

＜DC 4.0A

S-2A

̶̶

◯

̶̶

̶̶

̶̶

◯

＜DC 1.6A

9A

TB
Trouble?

Demagnet- Alarm
chuck does not does not
Fuse blows. ization is not indicator lamp
hold workpiece. output voltage.
performed. lights up.

Check andCorrective Action

Power is not being supplied.

●●

Check the power source.

Fuse has blown.

●●

Remove the fuse from the fuseholder and replace it with a new one.

Power source is exceeding
the rated voltage.

●

Output voltage adjust variable
resistor has been turned CCW fully.

●

Wiring to electromagnetic
chuck has been broken
or shorted.

●

Insulation ofelectromagnetic chuck
and its wiring is poor
(ground)

Check the power source voltage and use
the power source at the rated voltage.

●●

Adjust the output voltage again.
●

●

●

●

●

●

If measurement of resistance ofelectromagnetic chuck is ∞ Ω,
wiring broken. If 0 Ω, wiring shorted.

●

Disconnect the cord from the output
terminal of Chuck Master and measureinsulation resistance of electromagnetic
chuck. OK when it is above 5 MΩ. Ifless than 5 MΩ, check wiring. If
insulation of electromagnetic chuck ispoor, please request for repair.

ES-M305B/103B

Symptom Electromagnetic

Demagnetchuck does not Fuse blows. ization is nothold workpiece.
performed.

Cause
Power is not being supplied.

●

Check the power source.

Fuse has blown.

●

Remove the fuse from the fuse holder and replace it witha new one.

Power source is exceeding
the rated voltage.
Wiring between Chuck
Master and electromagnetic
chuck is defective orelectromagnetic chuck is
faulty.

◇Holding power is weak.

●Set the excitation voltage adjust variable resistor
at the maximum.
●If the holding power is still weak, the magnet being
used may not be adequate for the shape, material
or holding direction of workpieces.
※Note: Since ES-M Series outputs a constant excitation voltage, it

●

●

●

●

Check the power source voltage and use the powersource at the rated voltage.
Disconnect the cord from the output terminal of Chuck
Master and measure insulation resistance ofelectromagnetic chuck. OK when it is above 5 MΩ. If lessthan 5 MΩ, check wiring. If insulation of electromagnetic
chuck is poor, please request for repair.

does not have the excitation voltage adjust variable resistor.

PROMELTA*SYSTEM※Note: ・Prior to checking/investigating causes, be sure to turn off the power and disconnect the power
cable from the Chuck Master.
・Measure the insulation resistance of the electromagnetic chuck with an insulation resistancetester. Be sure it is above 5 M at a test voltage of 500 VDC.
・If the electromagnetic chuck failed, place an appropriate warning (such as attaching a tag of “Outof Order. Use Prohibited.”). If the cause cannot be identified, please contact the manufacturer.

Model TB TERMINAL BOX①②③

BLOCKS, HOLDERS,MINI CHUCKS① Electro Chuck Master② Terminal box③ Electromagnetic chucks
connected

SINE BARCHUCKSAn example of integrating wires by use of a terminal box

TB-6PC［Application］
When several electromagnetic chucks are connected and are
to be controlled together by one unit of the Chuck Master, aterminal box is required that integrates wires from the chucks.
Terminal boxes for 2 circuits up to 10 circuits are available.

［mm
（in）
］
Model

Input Capacity

W1

4-φ5.5

90

110

N.P.

6

280
（11.0）

266（10.4）

250（9.84）

TB- 8PC8

330（12.9）

316（12.4）

300（11.8）

TB-10PC10

380（14.9）

366（14.4）

350（13.7）

TB- 6PC

30A

〈

〉

OUT3

OUT2

OUT1

4-φ5.5Ground（＊2）

175

OUT4

〉

〈

−

〉

※The number of “OUT” in the above figures varies according to the number of branches.

Ground（＊2）

E

100Ground（＊2）

69

−

OUT2

2
OUT2

INPUT

INPUT（＊1）

2

OUT3

OUT1

1

OUT1

1

185

〈

₃

(See left-side ﬁgure)4

TB- 4PD

₂

E

15

OUT4

120

INPUT

120

15

W3

₁

2

TB- 2PD

W2

Dimensions

No. ofOutputs

HOLDING
TOOLS●Turn the demagnetization adjust variable resistor to apoint where the maximum demagnetization effect canbe obtained.

MEASURING
TOOL HOLDERS◇Residual holding power is large.

Check and Corrective Action

MAGNETICHOLDERS

ES-M305B

MAGNETIC
TOOLS

EH-V305A

BLOCKS
FOR MC

Symptom Electromagnetic Chuck Master
Cause

VACUUM
CHUCKS

EH-V305A

If your electromagnetic chuck failed, refer tothis page. Symptoms, possible causes andcorrective actions of two typical Chuck Masters
are presented here. Please follow these
instr uctions pr ior to asking for repair orpurchasing parts.

PERMANENTPERMANENTCHUCKELECTROMAGNETIC
ELECTROMAGNETIC CHUCKS MAGNETIC CHUCKS CONTROLLERS CHUCKS■If the Chuck Master does not function properly, check it referring to the following table.

20