Yaskawa BACnet MS/TP - Manual (Page 18)

2.
Connect the ground wire (G) to the ground terminal (H) using one of the remaining
provided screws (F). Connect the other end of the ground wire (G) to the remaining
ground terminal and installation hole on the option (M) using the last remaining
provided screw (F) and tighten both screws to 0.5 ~ 0.6 N m or (4.4 ~ 5.3 in lbs).
NS MS
F
G
M
H
TX RX
Figure 6 Connect the Ground Wire
Note: There are two screw holes on the drive for use as ground terminals. When connecting three
options, two ground wires will need to share the same drive ground terminal.
Wiring the Option
1.
Route the option wiring.
Depending on the drive model, some drives may require routing the wiring through
the side of the front cover to the outside to provide adequate space for the wiring. In
these cases, using diagonal cutting pliers, cut out the perforated openings on the left
side of the drive front cover. Sharp edges along the cut out should be smoothed down
with a file or sand paper to prevent any damage to the wires.
Route the communication wiring inside the enclosure for drives that do not require
routing through the front cover. Refer to
Table 5 and Figure 7 to determine the proper
wire routing by drive model.
5 Installation Procedure
18 YASKAWA TOEP YEACOM 08A A1000 Option BACnet MS/TP SI-B3 Installation & Technical Manual