Flowserve NRG 16-40 - Manual (Page 19)

9
Wiring
NRG 16-40, NRG 17-40, NRG 19-40, NRG 111-40
Important Note
Note that screened multi-core twisted-pair control cable is required for the BUS line, e. g. UNITRONIC
®
BUS CAN  x  x ... mm  or RE-YCYV-fl  x  x ... mm  .
Prefabricated 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.
UNITRONIC ® is a registered trademark of LAPP Kabelwerke GmbH, Stuttgart
. Undo screws H and remove housing cover J. Fig. 13
. Slacken plug O with 7 mm open-end spanner but do not remove. Fig. 14
The electrode terminal box can now be turned through +/– 180°.
3. Turn electrode terminal box into desired position (+/– 80°).
4. Tighten plug
O with 25 Nm.
5. Set node ID (see sections “Basic Settings” and “Factory set default node IDs”).
6. Re-attach housing cover J and fix it by using screws H.
The baud rate is set via a code switch. Reduce baud if cable is longer than specified in the table. Make
sure that all bus nodes have the same settings.
To protect the switching contacts fuse circuit with .5 A (anti-surge fuse) or according to TRD
regulations (.0 A for 7 hrs operation).
If a max. cable length of more than 125 m (up to 1000 m) is desired, make sure to modify the
baud rate settings accordingly. Please refer to Fig. 26 on page 24 for more details.
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
 x  x 0.34
Factory setting
ON ON OFF 5 kBit/s 50 m  x  x 0.5
OFF OFF ON 00 kBit/s 335 m  x  x 0.75
ON OFF ON 50 kBit/s 500 m
on request, dependent on
bus configuration
OFF ON ON 0 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 coupling.