Flowserve TRV5-40 Manual de usuario descargar pdf (Pagina 11)

Wiring

Wiring of the temperature sensor

Note that screened four-core cable, e. g. Ölﬂex

110CH, Lapp, 4 x 0.5 mm

is required for wiring

the equipment. Max. cable length between temperature sensor and temperature transmitter

TRV 5-40: 25 m.

When the equipment is open:

1. Undo cable gland

I and pull the cables of the sensors through the glands.

2. Strip off approx. 40 mm of cable insulation coating, remove approx. 5 mm of conductor end

insulation and disconnect the screen. Note that the screen must only be connected to the

temperature sensor.

3. Connect the sensor cables according to the wiring diagram to the terminal strip

4. Fasten cable glands

I to achieve a good seal. Use sealing plugs to seal off cable glands that are

not used.

Bus line, cable length and size

Note that screened multi-core twisted-pair control cable is required for the BUS line, e. g. UNITRONIC

BUS CAN 2 x 2 x … mm

or RE-2YCYV-ﬂ 2 x 2 x … mm

Preassembled control cables (with connector and coupler) for connecting the equipment are available

as accessories.

The baud rate (data transfer rate) dictates the cable length between the bus nodes and the total power

consumption of the sensor dictates the conductor size.

When the equipment is open you can set the baud rate by using the code switch F Fig. 3 (S 8 to 10).

The baud rate of the temperature transmitter TRV 5-40 is set at our works to 250 kBit/s (for a max.

cable length of 125 m). Reduce the baud rate if the cable length exceeds 125 m. Make sure that all

bus nodes feature the same baud rate setting.

S 8 S 9 S 10 Baud rate Cable length

Number of pairs

and conductor size [mm

]

OFF ON OFF 250 kBit/s 125 m

2 x 2 x 0.34

Factory setting

ON ON OFF 125 kBit/s 250 m 2 x 2 x 0.5

OFF OFF ON 100 kBit/s 335 m 2 x 2 x 0.75

ON OFF ON 50 kBit/s 500 m

on request, dependent on

bus conﬁguration

OFF ON ON 20 kBit/s 1000 m

ON ON ON 10 kBit/s 1000 m

Note

The speciﬁed max. baud rates and cable lengths are based on empirical values

ascertained by GESTRA. However for some applications it might be necessary to reduce

the baud rate in order to ensure trouble-free operation.

UNITRONIC

is a registered trademark of LAPP Kabelwerke GmbH, Stuttgart.

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Flowserve TRV5-40 Manual de usuario Pagina 11

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