Cables - Panasonic FP E Series User Manual

7.3.3 Cables

Please use the following cables for systems using RS485 type communication cassettes.
Appropriate electrical cables (twisted cables)
Cross-sectional
Type
view
Shielded
twisted
pair
VCTF
Note:
• Use shielded twisted pair cables.
• Use only one type of transmission cable. Do not mix more than 1 type.
• Twisted pair cables are recommended in noisy environments.
• When using shielded cable with crossover wiring for the RS485 transmission line, grounded one end.
• If two wires are connected to the plus terminal and minus terminal of the RS485 of AFPG806 (COM4),
use the wires of the same cross-sectional area which is 0.5 to 0.75 mm
Conductor
Resist-
Size ance
(at 20°C)
2
Max.
1.25 mm
(AWG16) 16.8
or greater
Ω/km
2 Max.
0.5 mm
(AWG20) 33.4
or greater Ω/km
2 Max.
0.75 mm
(AWG18) 25.1
or greater
Ω/km
Insulator
Cable
Thick-
diam.
Material
ness
Polye- Max. Approx.
thylene 0.5 mm 8.5 mm
Polye- Max. Approx.
thylene 0.5 mm 7.8 mm
Polychlo-
Max. Approx.
rinated
0.6 mm 6.6 mm
biphenyl
2
.
Sample
appropriate
cable
Belden 9860
Hitachi Cable,
Ltd. KPEV-
2
S1.25 mm x
1P
Belden 9207
Hitachi Cable,
Ltd. KPEV-
2
S0.5 mm x
1P
VCTF-0.75
2
mm x 2C(JIS)
7-17