Madas JW-1 Serie Manual Del Usuario página 14

• Adjust the fast stroke by turning the screw (22). By turning it all the way anti-clockwise, valve opening will immediately be
slow. By turning it clockwise it will initially be fast and then slow.
• For flow regulation completely unscrew the side clamping screw (25). Turn the regulating ring nut clockwise (13) to
decrease the flow, turn it anti-clockwise to increase it. When you achieve the required setting, secure the calibration by
tightening the side screw (25).
5.0 - MAINTENANCE
All maintenance operations must be carried out in the absence of an explosive atmosphere.
No maintenance operations need to be carried out inside the device.
If the coil need to be replaced:
• Before performing any operation, make sure that the device is not electrically powered;
• Since the coil is also suitable to be permanently powered, coil heating in case of continuous operation is an entirely
normal phenomenon. It is advisable to avoid touching the coil with bare hands after a continuous power supply lasting
longer than 20 minutes. In case of maintenance, wait for the coil to cool down or, if necessary, use suitable protections;
NOTE: The coil replacement operations need to be carried out taking care to ensure the product's IP65 rating.
5.1 - REPLACING THE COIL
On fast opening versions:
• Loosen the screw (or nut) (12) that locks the coil (11) and take it out from the armature assembly along with the
seals/discs;
• Place the new coil + seals + discs inside the armature assembly and secure with the relative screw (or nut);
On slow opening versions, models S or R:
• Completely loosen and take out the side screw (25);
• Completely loosen and take out the 3 screws (24);
• Remove the slow opening kit (23);
• Slide the ring nut out sideways over the coil (11) and take it out pulling upwards;
• Put the new coil in the armature assembly and repeat the above operations in reverse order;
On slow opening versions, models Q or T:
• Unscrew the slow opening kit (23), take the coil (11) (with relative seals) out of the armature assembly;
• Put the new coil + seals in the armature assembly and repeat the above operations in reverse order;
• Couple the connector to the coil and secure it as shown in 3.2;
• If it is necessary to set up the wiring, proceed as described in 3.2;
• Repeat the procedures explained in paragraph 4.
6.0 - CPI SWITCH
The microswitch that signals the closed position (CPI SWITCH) is a magnetic proximity sensor with normally open contact. It
provides a signal when the valve obturator closes.
If the solenoid valve comes with the microswitch, the position of the sensor is already calibrated and set, therefore, for operation
you simply need to connect it to the power supply.
If it comes separately and is installed at a later time on a solenoid valve with CPI pre-arrangement, follow the instructions
provided in paragraph 6.2
6.1 - CPI SWITCH TECHNICAL DATA
• Room temperature
• Switchable voltage
• Switchable current
• Switchable power
• Resistance
• Protection rating
• Protection mode
• Cable length
JW...-1
: -20 ÷ +60 °C
: max 1000 V (dc or ac peak)
: max 1 A (dc or ac peak)
: max 40W ohmic
: 200 mΩ
: IP65
II 3G Ex nC IIC T6 Gc X - II 3D Ex tc IIIC T85°C Dc X
: max 5m (3m provided)
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Madas Technical Manual - 1|1.3J - REV. 0 of 1
CPI electrical diagram
SPST
open valve / open contact
closed valve / closed contact
Aug 2019
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