EQ7 Series Instruction Manual - TECO-Westinghouse Motor Company

7.3 Run/Stop from Serial Communication RS485 Port 2 (H30 = 6 or 8)
Control Terminals /
User Terminals
RS485 PLC / Computer Connection
+
-
RS485 Port 2
DX+
DX-
SD
Cable
Shield
To Run/Stop (Operation Command) the EQ7 drive via serial communication parameter H30 has be set to either a “6”
for Run/Stop via serial communication only or to “8” for Run/Stop (Operation Command) and Frequency Reference
(Frequency Command).
Default Communication Setting is: Address “1”, 9600 Bits/sec, 1 Start Bit, 1 Stop Bit, and No Parity
H30
Communications Link Function
This function sets the communication link function to select run/stop and frequency reference control.
Setting range: 0 to 8
To set parameter H30:
- Press PRG key, next select QUICK SET or DATA SET with UP/DOWN and keys and press the
FUNC/DATA key.
- In the parameter list move cursor to H30 with UP/DOWN keys and press FUNC/DATA key to select.
The serial communication link function uses RS485 Modbus RTU protocol and allows for:
1) Monitoring (data monitoring, function data check).
2) Frequency setting.
3) Operation command (FWD, REV, and other commands for digital input).
4) Write function data.
7-4