YASKAWA HV600 Technical Reference page 96

3.5 Bypass PCB Control Circuit
◆
Bypass Serial Communication Terminals
Type Terminal
TB3-1
IG5
TB3-2
TXRX+
Serial
Communication
TB3-3
TXRX-
TB3-4
SHIELD
◆
Switches on the Bypass PCB
The bypass PCB has switches to adapt the bypass I/Os to the external control signals as shown in
Set the switches to select the functions for each terminal.
96
Table 3.18 Bypass Serial Communication Terminals (TB3)
Terminal Name
Ground reference for RS-485 signals. This is an isolated ground used only for communications and may be used in
Isolated ground
certain circumstances to connect the floating ground references of other communication devices.
• BACnet communications
(+) Differential
communication signal
• APOGEE FLN communications
• MEMOBUS/ Modbus communications
• Metasys N2 communications
Use an RS-485 cable to connect the drive.
(-) Differential
Note:
communication signal
Make sure that DIP switch S1 is ON to enable the
termination resistor in the last drive in a BACnet,
APOGEE FLN, MEMOBUS/ Modbus, or Metasys
N2 network.
Shield tie point Capacitively coupled to chassis ground.
Figure 3.11 Locations of Switches
Function (Signal Level)
• RS-485
• BACnet communications: Maximum 76.8 kbps
• APOGEE FLN communications: 4.8 or 9.6 kbps
• MEMOBUS/Modbus communications: Maximum
115.2 kbps
• Metasys N2 communications: 9.6 kbps
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Figure 3.11.