E.2 Connecting to a Network
u
Network Cable Connection
Follow the instructions below to connect the bypass to a MEMOBUS/Modbus network.
Note:
Separate the communication cables from the main circuit cables and other wiring and power cables. Use shielded cables for the
communication cables and properly shielded clamps to prevent problems from electrical interference.
• With the power shut off, connect the communications cable to the bypass controller and the master. Use the terminal TB3
for MEMOBUS/Modbus.
4
Shield
SHLD
Isolated Ground Reference
IG5
Transmit/Recieve (-)
TXRX-
Transmit/Recieve (+)
TXRX+
3
2
1
TB3
Figure E.1 Serial Communications Cable Connection Terminal (TB3)
• Check or set the termination resistor selection at all slaves.
Refer to Network Termination on page 363
Z1000 Bypasses.
• Apply power.
• Set parameters Z3-01 to Z3-11 needed for serial communications using the HOA keypad.
• Remove power and wait for the display on the HOA keypad to go blank.
• Reapply power.
• The bypass is now ready to begin communicating with the master.
E.2 Connecting to a Network
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
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E
Apogee FLN Network Protocol
