Phoenix Contact SCK-M-U-1500V Handleiding (128 Pagina's)

Handleiding

Installation

105608_en_01 PHOENIX CONTACT 47

Please note the following recommendations for cabling.

SCK-M-U-1500V

Table 6-3 RS-485 cabling recommendations

RS-485

Cable 0.25 mm

2

, twisted pair, (double) shielding

Shielding Connect both ends of the outer shield to ground. Connect the

inner shield on the controller to ground and on the communi-

cation module to GND2 only.

Surge protection For cable lengths >10 m, install appropriate surge protection

for RS-485 data cables in the direct vicinity of the

SCK-C-MODBUS and of the higher-level controller

(see “Accessories” on page 118).

Repeater To decouple or improve signals in networks, e.g., to cover large

distances, a repeater can be inserted in the RS-485 network.

Use a PSI-REP-RS485W2 (item no. 2313096), for example.

Table 6-4 SCK bus cabling recommendations

SCK bus

Cable 0.75 mm

2

, twisted pair, single shielding

Shielding Connect both ends of the shielding to ground.

Surge protection For cable lengths >10 m, install appropriate surge protection

for 24 V DC systems in the direct vicinity of the

SCK-C-MODBUS and of the connected SOLARCHECK mea-

suring module (see “Accessories” on page 118).

Repeater A repeater cannot be used in the SCK bus line as it would af-

fect power supply to the connected measuring devices.

Table 6-5 Analog connection/power supply cabling recommendations

Analog connection/power supply

Bus line 0.75 mm

2

, twisted pair, single shielding, max. length of 0.5 m

Shielding Connect both ends of the shielding to ground.

Table 6-6 Voltage connection cabling recommendations

Voltage connection

Cable ≥0.75 mm

2

, double insulated (appropriate to system voltage),

short-circuit-proof and ground-fault-proof installation

Table 6-7 PE connection cabling recommendations

PE connection

Cable Copper, 2.5 mm

2

/AWG 14, color code for PE

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