YASKAWA SI-C3/V Technical Manual page 16

 Communication Cable Wiring
 Procedure
Follow the instructions below to connect the communications cable to the terminal block.
NOTICE: Tighten all terminal screws according to the specified tightening torque. Tightening screws too tight could damage the terminal block, and leaving screws too loose
can cause a short-circuit or drive malfunction.
1.
Connect the communications cable to the terminal block as shown in the diagram below.
Note: Communication lines should be separated from main circuit wiring and other electrical lines. (Tightening torque: 0.22 to 0.25 (Nm))
Figure 15
2.
Ensure all wiring connections are tightened and wire insulation is not pinched in the terminal block. Remove any stray wire strands that touch
other terminals.
3.
After the terminal block is fully attached to the option unit, tighten the screws on the left and right sides of the terminal block. (Tightening
torque: 0.22 to 0.25 (Nm))
Note: Be sure to put the option cover back on after you have completed all necessary wiring.
Figure 16
 Communication Cable Specifications
Use only CC-Link dedicated communication cable; the Yaskawa warranty does not cover other cable types. For more information on cables, refer to
the CC-Link website at http://www.cc-link.org/.
Yaskawa recommends using CC-Link cables suitable for the conditions listed in
Cable Type
Gauge
Drain Wire
Conductor Resistance (20°C)
Insulation Resistance
Voltage Tolerance
Capacitance (1 kHz)
Electrical
Characteristics
Impedance
Attenuation (20°C)
YASKAWA ELECTRIC SIEP C730600 22C V1000 Option CC-Link Technical Manual
Preparing wire ends:
Pull back the sheilding and lightly
twist the end with fingers, keeping
the ends from fraying
about 5.5 mm
When not using
terminal extensions
Figure 15 Comm Cable Wiring
Figure 16 Terminal Block Installation
Table 7 Communication Cable Requirements
1 MHz
5 MHz
1 MHz
5 MHz
Screwdriver blade size
up to
2.5 mm
Blade width
up to 0.4 mm
DA DB DG SLD SLD
Loosen the screws and
insert the cable into the
Terminal block
opening on the terminal block
CC-Link comm cable
(do not soldered ends)
screwdriver blade size
up to
3.5 mm
blade width
up to 0.6 mm
Table 7.
Specifications
triple-core shielded twisted-pair cable
8.0 mm max
20 lines / 0.18 mm or 24 lines / 0.18 mm
37.8 Ω/km
10000 MΩkm or more
500 Vdc, 60 s
60 nF/km max
110 ±15 Ω
110 ± 6 Ω
1.6 dB / 100 m max
3.5 dB / 100 m max
5 Installation Procedure
17