Instruction Manual

IEC/EN 60079-0, IEC/EN 60079-1, IEC/EN 60079-7
IEC/EN 61241-0, IEC/EN 61241-1, IEC/EN 60079-31
IEC/EN 60947-1, IEC/EN 60947-5-1
IEC/EN 60947-5-5 (Emergency stop switch)
IEC/EN 60051-1, IEC/EN 60051-2, IEC/EN 60051-9(Meter）
II2GD
Ex de IIC, Ex tD A21 IP65
Ex de IIC Gb, Ex tb IIIC Db IP65(Meter)
PTB 08 ATEX 1053 U / PTB 08 ATEX 1003 U / PTB**ATEX****U
IP65
IP20 (EU2B-Y***F), None (EU2B-Y***C)
-20 to +50é (no freezing)
45 to 85%RH (no condensation)
2,000m maximum
3
Operating extremes
Damage limits
Operating extremes
Damage limits
Use the EU2B control units that are applicable for use in hazardous areas, otherwise
explosion or fire hazard may result. (Hazardous area: potentially explosive atmosphere
where explosive gas or vapor may exist) Because the EU2B control unit is a Ex component, it
cannot be be used as an explosion-proof equipment on its own. To use the EU2B control
units in Japan, it should be certifified by TIIS (Technology Institution of Industrial Safety) as a
finished product.
EU2B control units can be installed only in zones 1 and 2. Do not use in zone 0.
Turn power off to the EU2B control units before installation, removal, wiring, maintenance, or
inspection, otherwise explosion, fire hazard, or electric shock may result.
Special expertise is required to install, wire, operate, maintain, and inspect the EU2B control
units. People without such expertise must not use the EU2B control units, otherwise damage
or accident may result.
Do not disassemble, repair, or modify the EU2B control units, otherwise damage or accident
may result.
Do not use a damaged the EU2B control units, otherwise damage or accident may result.
When connecting with external devices, make sure that each cable is connected to the
correct terminal, otherwise electric shock, fire hazard, or explosion may result.
Use wires of a proper size to meet voltage and current requirements. Tighten the M3.5
terminal screws to a tightening torque of 1.0 to 1.3 N᳽m. Incorrect wiring may cause
abnormal temperature rise and lead to fire hazard and explosion.
Operate the EU2B control units under the rated current and voltage specified in this
instruction manual, otherwise short-circuiting, fire hazard, or explosion may result.
When measuring the insulation resistance of the control units, make sure that potentially
explosive atmosphere of explosive gas or vapor does not exist in the vicinity, otherwise
explosion or fire hazard may result. Do not touch the terminal carelessly. Otherwise, electric
shock may result.
(General requirements)
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(Maintenanceand inspection)
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INSTRUCTION MANUAL
EU2B Flameproof and Increased Safety Control Units
B-1044(2)
Confirm that the delivered product is what you have ordered. Read this instruction manual to make sure of
correct operation. Make sure that the instruction manual is kept by the end user.
Safety Pr e c a u t ions
In this operation instruction manual, safety precautions are categorized in order of importance to
Warning and Caution:
Warning notices are used to emphasize that improper operation may cause severe personal
injury or death.
(General requirements)
Ū

Ū
(Opening the shipping carton)
Ū
(Installation)
Ū
（Operation)
Ū
（Maintenance and inspection)
Ū
The EU2B control units are exclusively designed for the EC2B flameproof and increased
safety control box. When using the EU2B control units for other purposes, make sure that the
operating conditions are appropriate.
When using the emergency stop switch for safety-related equipment in a control system, to
make sure of correct operation, refer to the safety standards and regulations in each country
and region depending on the application purpose of the actual machines and installations.
Before using the emergency stop switch, perform risk assessment to make sure of safety.
Check that the product is what you have ordered. Using an incorrect model might result in
malfunction or accident.
Read this instruction manual to make sure of correct installation of the EU2B control units.
Install the EU2B control units without getting in the substances such as dust, concrete powder,
or metal powder, otherwise contact failure or insulation failure may result.
Stop operation immediately if abnormal operation occurs. Otherwise, a secondary accident
may occur.
The surface temperature of the EU2B control units may become extremely high during
operation. Before maintenance or inspection of the EU2B control units, be sure to wear
gloves to prevent burn on your hand.
ᲧNotes for OperationᲧ
ȷContact bouncing
When the control unit is operating, the contacts will bounce. When designing a control circuit,
take the contact bounce time into consideration (reference value: 20 ms).
ȷSpecifications
(2) Pushbutton swtich, Selecter switch, Key selecter switch and Emergency stop switch
(Type EU2B-YB/ EU2B-YS/ EU2B-YSK/ EU2B-YBV
Resistive load AC12
Inductive load (AC15
Resistive load (DC12)
Inductive load (DC13
24V
10A(*)
10A(*)
8A
4A
120V
10A(*)
6A
2.2A
1.1A
240V
6A
3A
1.1A
0.55A
500V
2.8A
1.4A
-
-
Rated Insulation Voltage (Ui)
Thermal Current (Ith)
Rated Operating VoltageᲢUeᲣ
Rated Operating CurrentᲢIeᲣ
(*) 10A (< 2 contact blocks by one control unit), 9A (= 3 contact blocks by one control unit)
Minimum switching capacity : 5 mA at 3V AC/DC
(applicable range may vary with operating conditions and load types)
600V
10A
AC
50/60Hz
DC
ᲧNotes for OperationᲧ
ȷThe LED built-in lamp is super bright type. Note that the LED lamp may turn on even when the
power is turned off because of induction.
ȷIDEC does not guarantee exchange of an LED lamp, because it will affect explosion protection
characteristics. Call IDEC when you need to replace LED lamps.
(3) Pilot Light (Type EU2B-YL)
Rated insulation voltage (Ui)
Rated Operating Voltage (Ue)
Impulse Withstand Voltage (Uimp)
Insulation Resistance
Light source
Colors
Frequency (AC)
Rated Power Consumption (approx.)
life (reference value)
Weight (approx.)
500 V
AC/DC 6, 12, 24V (Full voltage type)
AC 100/110, 115, 120, 200/220, 230, 240, 380,
400/440, 480V (Transformer type)
4kV
100 M minimum (500V DC megger)
LED lamp (Type LSTD by IDEC)
Amber, Blue, Green, Pure White, Red, White, Yellow
50/60 Hz
0.3W (Full voltage type), 1.5VA (Transformer type)
Applox 40,000 hours
108g (Full voltage type), 150g (Transformer type)
ȷContact Rating
(4)Meter(EU2B-YM)
(2) Parts Description
Contact block,
Type EU2B-N
Operator
Pushbutton switch and
Emergency stop switch,
Type EU2B-UB/ UBV
Selector switch and Key selector switch,
Type EU2B-US/ USK
Contact block
adapterᲦ
Type EU2B-J
Pushbutton switch and Emergency stop switch, EU2B-YB/ YBV
Selecter switch and Key selector switch, EU2B-YS/ YSK
Pilot LightᲦEU2B-YL
Ĭ
Lift
ĭ
Turn
locking lever
Į
Pull
Ĭ
Lift
ĭ
Turn
locking lever
Į
Pull
EU2B-YB/ YBV
EU2B-YS/ YSK
EU2B-YL
Contact unit,
Contact unit consists
of a contact block
adapter and contact
blocks.
Lamp unit
Type EU2B-XL
is available in Full
voltage type and
Transformer type.
Pilot light Lens unit,
Type EU2B-UL
TOP
indicator (red)
locking lever
Note: When the contact unit is removed from the
emergency stop switch operator, the NO contact closes
and the NC contact opens. Do not turn the locking
lever when the contact unit is removed from the
operator (the red indicator is protruding out. See the
figure on the right). Otherwise, the switch may be
damaged.
3
Arrangement and Mounting
(1) Dimension
<EU2B-YB2> <EU2B-YB3>
<EU2B-YS>
<EU2B-YSK>
<EU2B-YB1>
<EU2B-YBV3>
13.3
35.024.519.3
ȭ
40
27.3
67.713.3
39
1.0 to 4.5
(Panel thickness)
48
ȭ40
ȭ24
ȭ40
33
32.2
100 m/s
2
, Emergency stop switch: 150 m/s
2
(Without Meter)
1,000 m/s
2
5 to 55 Hz, amplitude 0.5 mm
Emergency stop switch:
5 to 500 Hz, amplitude 0.35 mm, acceleration 50 m/s
2
(Without Meter)
30 Hz, amplitude 1.5 mm
Emergency stop switch:
5 to 500 Hz, amplitude 0.35 mm, acceleration 50 m/s
2
Explosion protection
ųGroup and category
Type of Explosion protection
ų
Test certificated
Degree of protection (IEC/EN 60529)
ųFrom panel front
Terminal
Standard operating environment
ųAmbient temperature
ųRelative humidity
ųAltitude
ųPollution degree
Shock resistance

Vibration resistance
2
Product Specifications
(1) General Specifications
ȷPilot Light
Lens unit (style ) L1:Pilot light
Button color
R : Red G : Green B : Black
Y : Yellow W : White S : Blue
Terminal shape
C : Standard screw terminal
F : IP20 screw terminal
Contact arrengement
10 : 1NO 01 : 1NC
20 : 2NO 02 : 2NC
11 : 1NO1NC 30 : 3NO
03 : 3NC 21 : 2NO1NC
12 : 1NO2NC
Contact arrengement of emergency stop switch are limited "01","02","11","03","12".
Operator (style / function)
B1 : Flush pushbutton
/ Momentary
B2 : Extended pushbutton
/ Momentary
B3 : Mushroom pushbutton
/ Momentary
BV3: Mushroom
/ Emergency stop
ȷSelector switch and Key selector switch
Operator (style )
S : Selector (Knob operator)
SK : Key selector (Key operator)
ȷPushbutton switch and Emergency stop switch
1
Type Numbers
EU2B-YB111FB
Button color of
emergency stop
switch are limited "R".
Terminal shape
C : Standard screw terminal
F : IP20 screw terminal
ڧ: May be followed by key removal
position code and/or different key
number code for key selector
switch. (Refer to the catalog)
Circuit code Blank:None
N1:Separate designation
etc. Refer to the catalog
Position / function
2 : 2-position / Maintained
2R : 2-position / Maintained (Overlap)
2J : 2-position / Maintained (Special function)
21 : 2-position / Spring return from right
3 : 3-position / Maintained
31 : 3-position / Spring return from right
32 : 3-position / Spring return from left
33 : 3-position / Spring return two-way
Contact arrengement
10 : 1NO 11 : 1NO1NC
01 : 1NC
20 : 2NO
02 : 2NC
30 : 3NO
03 : 3NC
21 : 2NO1NC 12 : 1NO2NC
Terminal shape
C : Standard screw terminal
F : IP20 screw terminal
Operating voltage
66 : AC/DC 6V (Full voltage type)
11 : AC/DC 6V (Full voltage type)
22 : AC/DC 24V (Full voltage type)
16 : AC 100/110V (Transformer type)
116 : AC 115V (Transformer type)
126 : AC 120V (Transformer type)
26 : AC 200/220V (Transformer type) 236 : AC 230V (Transformer type) 246 : AC 240V (Transformer type)
386 : AC 380V (Transformer type) 46 : AC 400/440V (Transformer type) 486 : AC 480V (Transformer type)
EU2B-YL22FDR
Lamp color
R : Red G : Green A : Amber
Y : Yellow W : White S : Blue
PW : Pure White
EU2B-YS311N1F ڧ
ȷAC ammeter
Terminal shape
C : Standard screw terminal
F : IP20 screw terminal
Input current 1 : 1A 5 :5A
Function M : Meter
EU2B-YM53A10F-R
Measuring range
Direct measuring : 1 : 1A 5 : 5A
For current transformers : 10 : 10A 15 : 15A
20 : 20A 30 : 30A 50 : 50A
60 : 60A 75 : 75A 100 : 100A 150 : 150A etc.
Specification of overload scale
3 : 3 times 2 : 2 times 5 : 5 times N : Non
Type of meter A : AC ammeter
Set pointer
blank : non -R : with set pointer
ȷDC ammeter or voltmeter
Terminal shape
C : Standerd screw terminal
F
: IP20 screw terminal
EU2B-YM010VDF-PER-R
Specification of scale
-PER : 0~100%
-60HZ : 0~60Hz
-80HZ : 0~80Hz etc.
Function M : Meter
Input voltage or current
010 : 0-10V
001 : 0-1mA
420 : 4-20mA
etc.
Type of meter
VD
: DC voltmeter
MD : DC ammeter
Contact resistance
Impulse Withstand Voltage (Uimp)
Insulation Resistance
Mechanical Life
Electrical Life
Contact block
Short-circuit Protective Device
Conditional Short-circuit Current
Minimum Direct Opening Force
Minimum Direct Opening Travel
Maximum Travel
Weight (approx.)
50 m maximum (initial value)
6kV
100 M minimum (500V DC megger)
Pushbutton swtich
Selecter switch
Key selecter switch
Emergency stop switch
Pushbutton swtich
Selecter switch
Key selecter switch
Emergency stop switch
3 contacts maximum.
250V/10A fuse (Type aM IEC60269-1/IEC6026-9-2
1000A
Emergency stop switch: 60 N
Emergency stop switch: 7.0 mm
Emergency stop switch: 9.0 mm
EU2B-YB111C : 92g, EU2B-YS211C : 98g
EU2B-YSK211C : 120g, EU2B-YBV302C : 120g
Ჴ1,000,000 operations minimum
Ჴ500,000 operations minimum
Ჴ500,000 operations minimum
Ჴ50,000 operations minimum
Ჴ250,000 operations minimum
Operating Frequency : 1,800 operations/hour
Ჴ250,000 operations minimum
Operating Frequency : 900 operations/hour)
Ჴ250,000 operations minimum
Operating Frequency : 900 operations/hour
Ჴ50,000 operations minimum
Operating Frequency : 900 operations/hour)

<Panel mounting for the operator, lens unitand meter>
To remove the locking ring from the operator and check that the rubber gasket is in place. To
insert the operator from panel front into the panel hole. To place the projection on the operator
with TOP marking and the recess on the mounting panel in the same direction. ( The meter has
no projection.)
And tighten the locking ring using ring wrench
XN9Z-T1 to a torque of 2.5 N᳽m. When using a
nameplate or padlocking cover, install it between
the operator and panel. Make sure that the groove
of the namplate or padlocking cover, and the
projection on the TOP marking of the operator is
in the same direction.
Note: The locking ring for emergency stop
switches and meter is metallic. The meter can’t
mount the nameplate or podlocking cover.
TOP marking
Projection
Nameplate or
Padlocking cover
Recess on the panel
Locking ring
Nameplate
gasket
Recess on the
Nameplate
Rubber
gasket
<Installing the contact unit and lamp unit>
To install the contact unit, place theTOP marking on the operator and the TOP marking on the
contact block adapter in the same direction,
and then attach the contact unit to
the operator. Then turn the locking
lever to the right. Follow the same
procedure when installing the lamp
unit.
Note: When installing the lamp unit,
check that the inner lens is not loose.
Note: The contact block adapters for
emergency stop switches cannot be
used for pushbutton, selector and
key selector switches.
<Removing the Contact block>
To remove the contact block, insert a flat screwdriver under the latch of the contact block
adapter and disengage the latch. (See the figure below)
Note: When reinstalling the contact block after maintenance or wiring,
make sure that the contact configuration is correct. Installing the
contact block in the incorrect position or incomplete installation may
cause malfunction of the switch.
<Installing the Contact block>
Before installing the contact block, remove the contact block adapter
from the operator, and install the contact block on the contact block
adapter definitely.
Note: Do not install the contact block with the control block adapter
attached to the operator. Otherwise, malfunction may result.
4
Wiring
(1) Applicable wires
Stranded wire: 1.25 to 2.5 mm
2
, solid wire: φ1.2 to φ1.6 mm (AWG16 to 14)
(Note) Do not connect more than 2 wires to the same terminal.
(2) Applicable crimping terminal
(Note) Do not use ring terminals for EU2B control units with IP20 protection.
(Note) When connecting 2 ferrules to the EU2B control unit, use ferrules without insulating
sheath.
(Spade terminal) (Ring terminal) (Ferrule)
3.4
maximum
5.5
minimum
6.9 maximum
5.5
minimum
ȭ
3.6 minimum
࣭Without
insulating sheath
Insulating
sheath
Wire
8.0
maximum
(*1)ڧ1.8 maximum
࣭Insulating sheath
(*1) Dimension after clamping
8.0
maximum
(*1)ڧ1.8 maximum
࣭Recommended crimping terminal (WAGO)
Ferrule with insulating sheath: 216-204,
Ferrule without insulating sheath: 216-104, Crimping plier: 206-204
(3) Recommended tightening torque
EU2B control units (M3.5) : 1.0 to 1.3Nm
Insulating tube (covered)
Wire
5.5 to 6.0
Incorrect wiring may cause fire hazard. Observe the following conditions.
5
Commissioning
Before commissioning, ensure that:
ȷwires are correctly connected,
ȷthe EU2B control unit is installed been fitted in accordance with this instruction manual,
ȷthe EU2B control unit is not damaged.
Draw. No. B-1044C
Feb. 3, 2012
࣭Be sure to install an insulating tube on the crimping
terminal or the crimping terminal with insulation.
࣭When connecting solid wires or stranded wires directly,
strip the insulation as mentioned below and insert the wire
all the way in.
EU2B Control units: 8.6 mm maximum
࣭When using stranded wires, make sure that there are no wire whiskers.
࣭Make sure that the spade and ferrules are inserted all the way in.
Accuracy Class
AC ammeter
DC ammeter
DC voltmeter
Rated Insulation Voltage(Ui) 300V
Principle of action Moving-iron instrument
Impulse Withstand Voltage(Uimp) 4kV
Power Consumption 1VA
Specification of Measuring Range
Specification of Input Current
Specification of Overload Scale
Rated Insulation Voltage(Ui) 150V
Principle of action Permanent-magnet moving -coil instrument
Impulse Withstand Voltage(Uimp) 2.5kV
0 to 1mA DC, 4 to 20mA DC etc.
DC voltmeter
Power Consumption 0.15W max.
270g
2.5
100MΩ minimum(500V DC megger)
Insulation Resistance
<EU2B-YL>
1.0 to 4.5
(Panel thickness)
32
ȭ38
32.5
<EU2B-YM>
3.6 minimum 6.9 maximum
3.4
maximum
5.5
minimum
6.9 maximum
Meter, EU2B-YM
(Panel thickness)
1.0 to 4.5
8
ȭ
28
67.720.3
62
ȭ40
33.5
62.1
64
ȭ
33
+0.5
0
4.8
+0.2
0
30.5
+0.5
0
50 minimum(*)
70 minimum
<Removing the contact unit and lamp unit>
To remove the contact unit or the lamp unit from the operator, pull the protruding part of the
locking lever outwards as shown in the diagram (using a screwdriver etc.) and turn it to the left.
The contact unit or lamp unit can be pulled out.
2)Panel mounting
To remove the contact unit (for pilot
lights, remove the lamp unit) from the
operator (or lens unit). To remove the
locking ring from the operator. To insert
the operator into the panel cut-out from
the front, tighten the locking ring from
the back, then install the contact unit to
the operator.
(3) Panel thickness/ Mounting hole layout
1) Panel thickness: 1.0 to 4.5 mm
Mounting hole layout: See the right figures.
(*)The meter can be mounted on the top mounting holes of the standard 50mm mounting
centers. The meter can be mounted on any mounting hole with the 70mm or larger
mounting center.
Meter,
Type EU2B-YM
TOP marking
Ĭ
ĭ
EU2B-YB
EU2B-YS
TOP marking
inneer lens
Ĭ
ĭ
EU2B-YL
TOP
Weight(approx.)
0 to 10V DC etc.
DC ammeter
5A, 10A, 30A, 50A etc.
1A, 5A
3 times etc.
Specification
of Input
Applicable Standards
Set pointer
blank : non -R : with set pointer
Caution notices are used where inattention might cause personal injury or damage to equipment.
ȷZero-setting the pointer and setting the set pointer
Using a flat screwdriver with the tip of 0.8t×5w or smaller, adjust the pointer
and the set pointer by turning the shafts as shown at the right. Do not apply
excessive force on the shaft, otherwise the shaft will be damaged.
ȷDC voltmeter and DC ammeter do not require zero adjustment.
shaft for zero-
setting the pointer
shaft for
setting the set pointer
screwdriver
㸫Notes for Operation㸫
ȷFor AC ammeter of measuring range of 10A or avobe, use a current transformer
commercially available. Installthe current transformer in the non-hazardous area.
ȷTerminal polarity of meter.
Note that the upper terminal is positive (No.1) and the lower terminal is negative
(No.2) when installed on the control box.
(IP20 screw terminal)
60.1
(Standard screw terminal)