Asco WBLP Instrucciones De Puesta En Marcha Y Mantenimiento

INSTALLATION AND MAINTENANCE INSTRUCTIONS
Solenoid operators, increased security / encapsulation
GENERAL
These Installation and Maintenance Instructions for solenoid
operator type WBLP are a general supplement to the spe-
cifi c I&M sheet for the solenoid valve. These operators are
identifi ed by the prefi x WBLP before the catalogue number.
Always use both I&M sheets for installing and maintaining
the solenoid valve.
DESCRIPTION
Essential Health and Safety Requirements: Solenoid
operators types WBLP are designed in accordance with IEC
and EN Standards references: 60079-0, 60079-7, 60079-18
and 60079-31.
Classifi cation: II 2 G Ex e mb IIC T4 Gb
II 2 D Ex tb IIIC T135°C Db IP67
Warning:
- Do not open when energized
- Do not open when an explosive atmosphere may be present
- Potential electrostatic charging hazard - See instructions
Specifi c parameters of the concerned protection mode:
nominal current nominal power
voltage
frequency
In (mA) Pn (W)
Un (V)
50 Hz 60 Hz 50 Hz
230 50 Hz 23 3,5
230 50-60 Hz 23 19 3,5
200 50-60 Hz 26 22 3,5
115 50-60 Hz 46 38 3,5
115 50 Hz 46 3,5
100 50-60 Hz 53 44 3,5
48 50-60 Hz 110 92 3,5
48 50 Hz 110 3,5
24 50-60 Hz 220 183 3,5
24 50 Hz 220 3,5
110 DC 36 4
48 DC 83 4
24 DC 170 4
12 DC 330 4
All the certifi cates of Conformity in compliance with
these Standards are available at www.asco.com
EU type examination certifi cate no.: LCIE 12 ATEX 3005 X
IECEx Certifi cate of Conformity no.: IECEx LCI 12.0002X
INSTALLATION
Special conditions for safe use:
Our components are intended to be used only within the
technical characteristics specifi ed on the nameplate. So-
lenoid operators Type WBLP are designed to be installed
in potentially explosive atmospheres caused by gases of
groups IIA, IIB and IIC, vapours or mists of (category 2G) and
dusts (category 2D). The surface temperature classifi cation
is T4-T135°C and depends on the power rating and ambient
temperature stated on the coil.
Depending on the ambient temperature/power rating, a heat
resistant cable suitable for the temperature indicated on the
coil must be used.
The voltage indicated on the coil may only vary within a ±10%
range of the nominal voltage.
type WBLP
TEMPERATURE CLASSIFICATION
AC (~) Solenoids DC (=) Solenoids
solenoid maximum solenoid
size ambient °C (1) size
Pn Pn
surface
temperature
(watt) (watt)
T4
135°C
insulation class F (155°C) 100% E.D. insulation class F (155°C) 100% E.D.
3,5 • 65 4 •
surface temperature classifi cation
(G/D)
tempe- tempera- maximum maximum maximum
rature ture ambient cold wattage cold wattage
for dust class temperature (DC) (AC)
(°C) T (°C) (W) (W)
135 4 65 4 3,5
Check the wattage compatibility with the selected product.
1) Minimum ambient temperature: -40°C. This temperature
may be limited by the operating temperature rating of the
pilot valve or spool valve.
60 Hz
WARNING: In case of use in zone 0 group IIC, the magnetic
head WBLP must be protected against the fl ow of surround-
3,0
ing air and the friction in order to avoid any electrostatic
3,0
3,0
charge of the envelope made of synthetic material.
of dry clothes and/or the friction on the solenoid surface
3,0
have to be avoided during installation and maintenance.
3,0
ELECTRICAL INSTALLATION
3,0
The solenoid valve must be installed under the responsibility
of the company operating the industrial site. The system as a
whole must conform to standard EN60079-14.
Before starting any work, turn off the electrical current to
power off the components.
All screw terminals must be tightened to the appropriate torque
,see table following pages, prior to operation (max. wire sec-
2
tion 3 x 1,5 mm ). Strip the outer insulation of the cable over
approx. 30 m and the insulation from the leads over 8 mm.
Insert wires through the cable gland and connect wires to the
terminals of the coil.
Cables allowed to be used:
- O.D. between 7 mm to 8,5 mm
- O.D. between 9,4 mm to 10,5 mm
Connect cable ground wire to the internal ground terminal.
Keep some slack in the leads between cable entry and coil
to avoid excessive strain on the leads. Assemble the cable
gland and tighten the elastomer compression seals so that it
fi ts tightly around the cable.
Two seals available:
- I.D. 6,8 mm for cables with O.D. between 7 mm to 8,5 mm
- I.D. 9 mm for cables with O.D. between 9,4 to 10,5 mm
The solenoid can be rotated 360° to select the most favorable
position for the cable entry. Close the enclosure and tighten
4 cover screws securely to torque indicated. The solenoid
housing is provided with an external connection facility for an
earthing or bonding conductor.
2
GB
!
Install the cable so that there is no tension on the valve
maximum body.
ambient °C (1)
When connecting the cables, fi rst place all the cables in the ca-
ble trays or wireways before attaching them to the connectors.
surface
The electrical connection is made by
temperature
• Cable gland with an IP67 protection (when properly
T4
mounted). Tighten each wire on the connector's terminal to
135°C
the specifi ed torque. The tightening torque for the cable
gland is 2 N.m to ensure tightness to IP67.
65
The cable gland delivered with each product MUST be
cable
mounted. Any other assembly/installation will invali-
temperature
date the approval. Do not mount or remove the cover
(G/D)
while the power is ON.
maximun
cable
Operation: Before pressurising the system, fi rst carry out an
temperature
electrical test. Apply power to the coil several times and lis-
(°C)
ten for the metallic «click» indicating the solenoid operator is
working.
Personnel working with the components must be familiar with
electric controls, such as redundancies and feedback (elec-
tronic controls), where applicable.
Use: The coils are designed for continuous operation and may
therefore become hot.
NOTE: The voltage across the terminals of the coil must not
be more than 10% greater or 10% less than the nominal
voltage.
The use If the solenoid valve is easily accessible, provide for means of
protection to prevent accidental contact that may cause burns.
To avoid overheating, do not operate the solenoid valve in a
confi ned space without suffi cient ventilation.
An additional clamping of the cable has to be made, in order
to do not transmit or twisting to the entry cable, according to
EN 60079-0 Annex A (clause A.2.3.2).
CAUTION
Failure to stay within the electrical range of the coil rating will
result in damage to or premature failure of the coil. This will
also invalidate its approval for use in explosive atmospheres
caused by gases or dusts.
WARNING: Unauthorised personnel is not permitted to dis-
assemble or remove the coil assembly.
Take care not to damage the mating surfaces when disas-
sembling or re-assembling the coil assembly.
Wrong assembly will invalidate the approval.
SERVICE
To prevent the risk of personal injury or property damage,
do not touch the solenoid operator. It can become hot under
normal operation conditions. If the solenoid valve is easily
accessible, the installer must provide protection against ac-
cidental contact.
MAINTENANCE
For servicing, refer to the solenoid valve's Installation and
Maintenance Instructions.
Spare parts kits are available (contact us). If problems arise
during installation or maintenance or in case of doubt, please
contact us or one of our authorised representatives.
If the solenoid valve does not operate:
526588-001
INSTALLATION AND MAINTENANCE INSTRUCTIONS
Solenoid operators, increased security / encapsulation
type WBLP
- Check that the power supply corresponds to that indicated
on the nameplate.
- Check the electrical connections on the coil.
- Check the continuity of the coil circuit as with type m en-
capsulation, thermal protection in the event of an operating
fault, is provided for AC/DC by a thermal cut-out integral
with the coil.
CAUTION: Prior to any maintenance work, power off and
depressurise the valve and vent fl uid to a safe area.
DISASSEMBLY AND RE-ASSEMBLY OF SOLENOID
OPERATOR ON VALVE:
This operation must be carried out by suitably qualifi ed per-
sonnel.
Unscrew the 4 screws and remove the cover.
Disconnect the electrical wires, remove the coil.
Proceed in reverse order to re-install.
The solenoid operator must be fully reassembled as the hous-
ing and internal parts close the magnetic circuit.
Replacement of screw no. 1: Only use screws with 700 N/mm
minimum tensile strength.
In case of replacement of parts by the user, the trace-
ability of the fi nal product cannot be guaranteed by us
and must be ensured by the user.
Wrong assembly will invalidate the approval.
3
GB
2
526588-001