YASKAWA E7LVD002, Technical Manual, Page: 46 / 306

Electrical Installation 2 - 14
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Serial Communications:
Terminals are provided for “full duplex” or “half duplex” connections to the Drive for RS422/RS485 serial communication.
For “half duplex” operation via Metasys N2 protocol (enabled with option J), APOGEE FLN protocol (enabled with option U)
or Modbus protocol (enabled with option V) field configuration of these terminals is required.
When no cost options J, U or V are ordered:
• Jumpers are provided for field installation on terminals TB4-1 to TB4-3 and TB4-2 to TB4-4.
• The E7 Drive is programmed to enable the appropriate protocol (parameter H5-08), baud rate (parameter H5-02),
RTS control (parameter H5-07) and error detection time (parameter H5-09).
Option L (LonWorks) does not require jumpers and (with the exception of H5-07) employs the same parameter settings as
Modbus.
For co-ordination with other E7 Technical Manuals, the table below provides the equivalency between E7L Control PCB A2
terminal designations and E7 Drive terminal designations used in TM.E7.01, TM.E7.02, TM.E7.21, TM.E7.22 and
TM.E7B.01.
Table 2.11 Factory Programming for Serial Communication
Parameter (Function)
Option
J U V L
H5-02 (Baud Rate) 3: 9600 Baud 2: 4800 Baud 3: 9600 Baud 3: 9600 Baud
H5-07 (RTS Control) 1: Enabled 1: Enabled 1: Enabled 0: Disabled
H5-08 (Protocol) 1: N2 (Metasys)
2: FLN
(APOGEE)
0: Modbus 0: Modbus
H5-09 (Error Time) 10 10 10 10
Table 2.12 Serial Communications Terminal Designation Cross Reference
E7L RS485 Terminal E7 Drive RS485 Terminal
TB4-1 S+
TB4-2 S-
TB4-3 R+
TB4-4 R-