VACC-S18-120-K4-2U-KS4ME - Industrial Automation Festo - Free user manual and instructions

USER MANUAL VACC-S18-120-K4-2U-KS4ME Festo

Operating instruction

8182752

2022-09

[8182754]

8182752

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, T6Ex td A21 IP66 T85/T95/120 °C	22-AV4BO-0256X22-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→ www.festo.com/sp.

3 Certified products

Type Part no. Type Part no.
VACC-S18-35-K4-1U-KS4ME 8118317 VACC-S18-1	20-K4-1UF-KS4ME 8118322
VACC-S18-35-K4-1UF-KS4ME 8118316 VACC-S18-1	20-K4-2U-KS4ME 8118320
VACC-S18-35-K4-2U-KS4ME 8118315 VACC-S18-1	20-K4-3U-KS4ME 8118319
VACC-S18-35-K4-3U-KS4ME 8118314 VACC-S18-1	20-K4-7-KS4ME 8118318
VACC-S18-120-K4-1U-KS4ME 8118323 VACC-S18-1	20-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 The certification is no longer valid if the device is modified in any way by anyone other than the manufacturer.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

-For use in explosive dust atmospheres the cable must be installed to eliminate the generation of electrostatic charges caused by processes, e.g. flowing media.

• Only operate the solenoid coils with upstream fuses 12 Technical data and product labelling.
• For use in explosive dust atmospheres the cable must be installed to eliminate 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 actuated.

-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

Technical diagram of a mechanical component with numbered parts labeled 1 through 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 (tightening 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

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.

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

Operating conditions

	35 120
Electrical critical limits
Nominal voltage Un (-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 R20 [Ω] 158	42.1
Current consumption I20 [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 Ta
-25 °C ≤ Ta ≤ +40 °C	-	T4/T120 °C
-25 °C ≤ Ta ≤ +50 °C	T6/T80 °C	-
-25 °C ≤ Ta ≤ +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

Operating conditions

	35-1U 35-2U 35-3U
Electrical critical limits
Nominal voltage Un (-15% / +10%)	24 V DC/AC 110 V	DC/AC 230 V DC/AC
Type of voltage -Alternating voltage (50 ... 60 Hz ±2%) -DC or undulating voltage
Nominal power 50 Hz/60 Hz [W/VA] 3.5 / 3.5
Duty cycle 100% (continuous operation)
Degree of protection IP66 in accordance with IEC 60529
Overvoltage category III in accordance with IEC 60664-1
Fuse connected in series in [mA] 400 80 accordance with IEC 60127	40
Interruption rating Normally ≥ 1500 A
Limitation of switch-off over-voltage (internal)	Bridge rectifier
Resistance R20 [Ω]	158 3250	13200
Current consumption b0 [mA] 143 33	17
Temperature class at ambient temperature Ta
-25 °C ≤ Ta ≤ +50 °C	T6/T80 °C
-25 °C ≤ Ta ≤ +60 °C	T5/T95 °C
Storage temperature [°C]	-20 ... +90
Relative humidity	95% (non-condensing)
Connecting cable
Conductor cross section [mm2]	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. 4

Operating conditions

	120-1U	120-2U	120-3U	120-7	120-27
Electrical critical limits
Nominal voltage UN(-15% / +10%)	24 VDC/AC	110 VDC/AC	230 VDC/AC	48 VDC/AC	60 VDC/AC
Type of voltage	-Alternating voltage(50 ... 60 Hz ±2%)-DC or undulating voltage			-DC voltage
Nominal power 50 Hz/60 Hz [W/VA]	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
Fuse connected in series in accordance with IEC 60127 [mA]	1250	315	125	630	500
Interruption rating	Normally ≥ 1500 A
Limitation of switch-off over-voltage (internal)	Bridge rectifier			TVS diode
Resistance R20 [Ω]	42.1	902	3690	173	266
Current consumption l20 [mA]	524	120	62	277	226
Temperature class at ambient temperature Ta
-25 °C ≤ Ta ≤ +40 °C	T4/T120 °C
Storage temperature [°C]	-20 ... +90
Relative humidity	95% (non-condensing)
Connecting cable
Conductor cross section [mm2]	0.75 ... 2.5
Cable diameter [mm]	7 ... 13
Cable entry thread K4	M20x1.5
Assembly	Individual mounting
Materials
Housing	Steel, PA
CoverTerminal housing	Polyamide (glass-fibre reinforced)
Mounting position	Any

Tab. 5