Gram IF 4000 Manual De Uso página 306

Control Wire Types
Table 1.F Recommended Control and Signal Wire
Wire Type(s)
Belden 8760/9460
(or equiv.)
Belden 8770
(or equiv.)
(1)
If the wires are short and contained within a cabinet which has no sensitive circuits,
the use of shielded wire may not be necessary, but is always recommended.
I/O Terminal Block
Table 1.G I/O Terminal Block Specifications
Frame Maximum Wire Size
2
B & C 1.3 mm
(2)
Maximum/minimum sizes that the terminal block will accept - these are not
recommendations.
Maximum Control Wire Recommendations
Do not exceed control wiring length of 30 meters (100 feet). Control
signal cable length is highly dependent on electrical environment and
installation practices. To improve noise immunity, the I/O terminal block
Common must be connected to ground terminal/protective earth. If using
the RS485 (DSI) port, I/O Terminal 16 should also be connected to
ground terminal/protective earth.
Description
2
0.8 mm (18AWG), twisted pair, 100%
(1)
shield with drain.
2
0.8 mm (18AWG), 3 conductor, shielded for
remote pot only.
(2)
Minimum Wire Size
(16 AWG) 0.13 mm
Installation/Wiring
(1)
Minimum
Insulation Rating
300V
60 degrees C
(140 degrees F)
(2)
Torque
2
(26 AWG) 0.5-0.8 N-m (4.4-7 lb.-in.)
1-13