Festo VACC-S18-120-K4-1U-KS4ME Manual

Festo Ikke kategoriseret VACC-S18-120-K4-1U-KS4ME

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VACC-S18-...-K4-...-KS4ME
Solenoid coil
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Deutschland
+49 711 347-0
Operating instruction
8182752
2022-09
[8182754]
Translation of the original instructions
© 2022 all rights reserved to Festo SE & Co. KG
1
Identification EX
Identification Certificates
Ex e mb IIC T4, T5, T6
Ex td A21 IP66 T85/T95/120 °C
22-AV4BO-0256X
22-AV4BO-0257X
Tab. 1:
Identification EX
2
Applicable Documents
NOTICE
Technical data for the product can have different values in other documents. For
operation in an explosive atmosphere, the technical data in this document always
have priority.
All available documents for the product
è
www.festo.com/sp.
3 Certified products
Type Part no. Type Part no.
VACC-S18-35-K4-1U-KS4ME 8118317 VACC-S18-120-K4-1UF-KS4ME 8118322
VACC-S18-35-K4-1UF-KS4ME 8118316 VACC-S18-120-K4-2U-KS4ME 8118320
VACC-S18-35-K4-2U-KS4ME 8118315 VACC-S18-120-K4-3U-KS4ME 8118319
VACC-S18-35-K4-3U-KS4ME 8118314 VACC-S18-120-K4-7-KS4ME 8118318
VACC-S18-120-K4-1U-KS4ME 8118323 VACC-S18-120-K4-27-KS4ME 8118321
Tab. 2:
Certified products
4 Safety
4.1
Safety instructions
–
The solenoid coils can be used in combination with the specified solenoid
valves in zones 1 and 2 for explosive gas atmospheres and in zones 21 and 22
for explosive dust atmospheres.
–Operate the solenoid valve with compressed air only.
–
The device is not intended for use with other fluids.
–Always draw in the operating medium outside the potentially explosive area.
–
Installation and commissioning only by qualified electricians in accordance with
the operating manual.
–The range of application is dependent on the ambient temperature.
–
Comply with all applicable national and international instructions.
–Use the device in its original status without any unauthorised modifications.
The certification is no longer valid if the device is modified in any way by
anyone other than the manufacturer.
4.2 Intended use
The solenoid coil is intended to be used to actuate valves from Festo.
4.3 Identification X: special conditions
VACC-S18-…-K4-1UF-…ME
–For use in explosive dust atmospheres the cable must be installed to elimi-
nate the generation of electrostatic charges caused by processes, e.g. flowing
media.
VACC-S18-…-K4-…U-…ME, VACC-S18-120-K4-7-…ME and
VACC-S18-120-K4-27-…ME
–
Only operate the solenoid coils with upstream fuses
è
12 Technical data and
product labelling.
–
For use in explosive dust atmospheres the cable must be installed to elimi-
nate the generation of electrostatic charges caused by processes, e.g. flowing
media.
5 Function
When switching on the voltage, the solenoid is energised, and the valve is actu-
ated.
–In variants for DC/AC an integrated bridge rectifier limits the switch-off over-
voltage.
–An integrated TVS diode limits the switch-off overvoltage in variants for DC.
6
Transport and storage
–
Observe the following storage conditions: short storage times in cool, dry,
shaded and corrosion-resistant locations.
7
Assembly
1
2
3
4
5
6
7
Fig.1
1
Protective earth connection
2
Retaining nut
3
Retaining washer
4
Cover, terminal housing
5
Solenoid coil
6
Armature guide tube
7
Solenoid valve
7.1 Mechanical
1.
Push the solenoid coil and retaining washer over the armature guide tube.
2. Tighten retaining nut. Twisting the solenoid coil is no longer possible (tight-
ening torque 15 … 20 Nm).
3. Release terminal housing cover.
4. Connect electrical cables to the terminals.
5.
Connect the solenoid coil to the equipotential bonding by the inner or outer
protective earth connection (tightening torque 2 … 3 Nm).
6.
Close terminal housing cover (tightening torque 1.5 Nm).
NOTICE
The surface coating of the solenoid valves is electrically non-conductive.
• Include the device in the system equipotential bonding.
7.2 Pneumatic
1. Mount connecting cables and fittings properly. Before commissioning, remove
residues, such as chips, rust and water.
2. Switch off pressure to the compressed air lines.
3.
Use only fittings with cylindrical threaded lugs and sealing rings or cutting
rings.
4.
Do not use PTFE or hemp fibres on the threads.
5. Insert all sealing rings supplied with the NAMUR mounting kit between sole-
noid valve and drive or mounting plate.
6. If port 1 with control signal 2 bar, then supply auxiliary energy 2 bar to< >
port 12.
7. Do not use anti-friction coating or lubricant.
8. The dew point of the compressed air must lie below the specified lowest
operating temperature of the system.
9. Use suitable filter adapter.
10. Use suitable exhaust protection.
7.3 Electrical
VACC-S18-…-K4-1UF-…ME
Fig. 2: Universal voltage connection diagram
VACC-S18-…-K4-…U-…ME
Fig. 3: Universal voltage connection diagram
VACC-S18-120-K4-7-…ME and VACC-S18-120-K4-27-…ME
Fig. 4:
DC voltage connection diagram
8 Commissioning
WARNING
Electrostatic discharge may generate combustible sparks.
The product may become electrostatically charged. The surface coating of the
solenoid valve is not electrically conductive.
•
Prevent electrostatic charging of the product with appropriate installation and
cleaning measures.
• Include the solenoid valve and solenoid coil in the system equipotential
bonding.
• Prevent processes that are strongly charge-generating. Do not operate the
solenoid valve in the area of pneumatically transported dusts (e.g. powder jet).
• Prevent all charge-generating processes that are stronger than manual friction.
NOTICE
Escaping exhaust air or a leakage can swirl up dust and create a potentially
explosive dust atmosphere.
–Observe the specifications on the product labelling.
–
Do not commission the solenoid coil until after mounting.
With VACC-S18-…-K4-…U-…ME, VACC-S18-120-K4-7-…ME and
VACC-S18-120-K4-27-…ME:
Operate solenoid coil only with upstream fuses.
9 Operation
WARNING
Risk of injury from touching hot surfaces.
Contact with housing of the solenoid coil can cause burn injuries.
• Do not touch the housing.
–Observe the operating conditions.
–Comply with permissible critical limits.
10 Maintenance and care
WARNING
Electrostatic discharge may generate combustible sparks.
The product may become electrostatically charged.
If used in group IIC:
•
Only clean the device with a damp cloth.
When used in Group IIIC:
• Avoid process-related electrostatic charge of the cable (e.g. from media flowing
by) through appropriate installation.
–Changes or repairs to the solenoid coil are not permitted.
–
The device is maintenance-free.
11
Disassembly
WARNING
If the terminal housing cover is opened, explosive atmosphere may penetrate
the terminal housing and be ignited due to electrically generate sparks.
Before opening the terminal housing cover inside the potentially explosive area:
•
Switch off the power supply.
1.
Switch off the power supply.
2.
Release terminal housing cover.
3.
Disconnect electrical cables from terminals.
4.
Close terminal housing cover.
5.
Loosen the retaining nut. Remove solenoid coil.
12 Technical data
VACC-S18-…-K4-1UF-…ME
Operating conditions
35 120
Electrical critical limits
Nominal voltage U
N
(–
15% / +10%
24 V DC/AC
Type of voltage [Hz] Alternating voltage (50 … 60 ± 2%)
DC or undulating voltage
Nominal power 50 Hz/60 Hz [W/VA] 3.5/3.5 12/12
Duty cycle 100% (continuous operation)
Degree of protection IP66 in accordance with IEC 60529
Overvoltage category III in accordance with IEC 60664-1
Limitation of switch-off over-
voltage (internal)
Bridge rectifier
Resistance R
20
[Ω] 158 42.1
Current consumption I
20
[mA] 143 537
Fuse Integrated (in accordance with IEC 60127)
Internal fuse switching
capacity
Max. permissible short-circuit current at the supply
voltage source 100 A
Temperature class at ambient temperature T
a
–25 °C T£
a
+40 °C – T4/T120 °C£
–25 °C T£
a
+50 °C T6/T80 °C –£
–25 °C T£
a
+60 °C T5/T95 °C –£
Storage temperature [°C] –20 … +90
Relative humidity 95% (non-condensing)
Connecting cable
Conductor cross section [mm
2
]
0.75 … 2.5
Cable diameter [mm] 7 … 13
Cable entry thread K4 M20x1.5
Assembly Individual mounting
Materials
Housing Steel, PA
Cover
Terminal housing
Polyamide (glass-fibre reinforced)
Mounting position Any
Tab. 3

Produkt Specifikationer

Mærke: Festo
Kategori: Ikke kategoriseret
Model: VACC-S18-120-K4-1U-KS4ME

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