To Next Page

To Previous Page

2-16

2.2.6 Cables (for input signal or travel transmission)

■ Cable selection and conditions

The selection of and conditions related to cables for wiring are described below.

• We recommend the use of CVV (JIS C 3401) 600V control wires with PVC insulation

and a conductor cross-section of 1.25 mm

, or stranded cables with the same or better

performance specifications.

• For locations that are readily affected by electromagnetic noise, use CVVS (JCS 4258)

shielded wires and metal conduits.

• Select a sheath material that can withstand the cable installation environment (e.g.,

ambient temperature, corrosive gases, and corrosive liquids).

• Pull the cable to the terminal box through the conduit connection port (G1/2 internal

thread, 1/2NPT internal thread, or M20×1.5 internal thread).

• Use cable with an outer diameter between 7 and 12mm. If a flameproof cable gland is

used, be sure to use packing that conforms to the outer diameter of the cable.

• For wire ends, we recommend the use of crimp terminals (for M4 screws) with an

insulating sleeve.

• The maximum cable length is 1500m.

• Use the appropriate remote cable for the wiring between the main unit and the valve

travel detector of the remote type (model AVP200/201).

■ Cabling

When cabling between the device and the controller, be careful of the following items.

• When wiring, avoid sources of electromagnetic noise such as high-capacity trans-

formers, motors, and motive power supplies. Also, do not place cables in the same

tray or duct with power cables.

• For waterproofing and wire damage prevention, we recommend using conduits and

ducts. In addition, be sure to use waterproof adapters at conduit connections.

• In locations that are readily affected by electromagnetic noise, use conduits and ducts.

• If shielded cables are used for wiring, as a rule ground one point on the distributed

control system side.

Note

• The devices are intended for use in industrial locations defined in CE marking di-

rective (EN 61326-1).

• A 3.5% variation in the opening of the valve may occur around 2–4MHz of con-

ducted disturbances, induced by radio-frequency fields (EN 61000-4-6).

• Use the provided remote cables as the cables between the main unit and the valve

travel detector of a remote type (Model AVP200/201). Regarding construction and

cabling, see 2.3, “Remote Type Handling.”

Azbil AVP201 User Manual

Questions and Answers: