Flowserve NRG 26-40 - Manual (Page 15)

5
. Unscrew screws E, remove housing cover G. Fig. 5
2. Loosen screw M with 7 mm spanner but do not remove. Fig. 6
The electrode terminal can be turned through +/– 180°.
3. Turn electrode terminal into desired direction (+/– 80°).
4. Tighten plug
M with a torque of 25 Nm.
5. Set node ID (see “Basic Settings”, “Configure level electrode”).
6. Replace housing cover G and fasten screws E.
Wiring
NRG 26-40
Note that screened multi-core twisted-pair control cable is required, e. g. UNITRONIC ®
BUS CAN 2 x 2 x ... mm 2 or RE-2YCYV-fl 2 x 2 x ... mm 2 .
Prefabricated control cables (with connector and coupler) of various lengths 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.
The baud rate is set via a code switch. Reduce baud if cable is longer than specified in the table above.
Make sure that all bus nodes feature the same settings.
To protect the switching contacts fuse circuit with 2.5 A (anti-surge fuse) or according to TRD
regulations (.0 A for 72 hrs operation).
When a max. cable length of more than 125 m (up to 1000 m) is desired, make sure to modify
the baud rate accordingly. Refer to pages 19 and 20 for more details.
UNITRONIC ® is a registered trademark of LAPP Kabelwerke GmbH, Stuttgart
S 8 S 9 S 10 Baud rate Cable length
Number of pairs
and conductor size [mm 2 ]
OFF ON OFF 250 kBit/s 125 m
2 x 2 x 0.34
Factory setting
ON ON OFF 25 kBit/s 250 m 2 x 2 x 0.5
OFF OFF ON 00 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 000 m
ON ON ON 0 kBit/s 000 m
Aligning terminal box
Note
■
Wire the control cable according to the wiring diagram with connector and coupler.