Argo-Hytos RPEX3-06, Руководство по эксплуатации

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Subject to change_RPEX3-06_14054_1en_03/2022
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› Unscrew the grommet nut (5) of the cable grommet with the wrench a = 24,
remove and check the grommet seal (2) for damage.
› Thread the cable through the removed grommet parts (2, 3, 5) and the
grommet in the terminal lid(1).
7.2.1 Electrical connection of coils
4x screws M4x35 DIN 912
terminal lid
› Remove the insulation from the end of the cable so that when the cable is fixed in the grommet, the insulated part of the cable extends
sufficiently into the inner space of the terminal block.
› Strip a 5 mm length of the ends of the power supply wires and equip the ground wire with an M3 - 0.75 mm
2
cable gland designed for
ambient temperatures of +125 °C (+257 °F) and above.
› Secure the coil power wires with a maximum cross-section of 2 mm 2 to the terminal box using a 3 mm wide crewdriver. Tighten the
screws to 0.4 Nm (0.30 lbf.ft).
› Thread the cable lug of the ground wire under the head of the ground screw, located next to the terminal block, and screw in and tighten
the ground screw M3 with an inbus wrench a= 2.5 mm to a torque of 1.2 + 0.2 Nm.
ground screw
terminal
› Make sure that the wires are properly connected and not in danger of
coming loose.
› Check the lid seal for damage and fit the lid onto the coil body. Tighten
the lid using four M4x35 DIN 912 screws and torque to 4 + 0.5
Nm (3.0 + 0.4 lbf.ft) using an inbus wrench s = 3.
› Assemble the cable gland as shown. Tighten the cable gland nut (5) with
the key a = 24 so that the cable is held firmly in the gland.
The tightening torque of the nut depends on the cable diameter.
› After mounting the valve, it is necessary to ground the coil surface by connecting the ground wire to the terminal on the surface of the
terminal cover using an M5x10 screw. Tighten the screw using an 8 mm screwdriver.
Coils with AC power supply and rectifier are supplied with only the cable connected. Also, DC powered coils can be supplied by the manufacturer
with the cable attached upon request. If the directional control valve coils do not have a power cable connected, proceed as follows:
› A 6 to 8 mm outer diameter cable must be used to connect the coils to the power supply. If using a different type of grommet, follow the
grommet manufacturer‘s recommendations when selecting the cable diameter.
› Use a cable with sufficient insulation temperature class. For coil temperature class T4 this must be a cable with a minimum insulation temperature
resistance of +105 °C (+221 °F), for temperature classes T5 and T6 a cable with a temperature resistance of +90 °C (+194 °F). Furthermore, the
cable should be sufficiently protected against damage with respect to environmental conditions, e.g. resistant to mechanical damage or to the
effect of chemicals.
› Using an inbus wrench s=3, loosen the four M4x35 DIN 912 terminal cover screws. Carefully remove the cover . Do not damage the cover seal
(O-ring 45x2).
DANGER
Correct electrical connection of coils
Make sure that the wires are properly attached to the terminal block and to the grounding screw.
Ensure that the terminal box cover and the cable in the grommet are properly fastened and sealed.
There is a risk of explosion.
DANGER
Coil surface grounding
If the surface of the coil and thus the entire valve is not grounded, an electrical discharge of static electricity
may occur.